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Know When You've Had Enough With These Blood Alcohol Trackers

Drinking and driving is no joke. That's why before you get behind the wheel know when you've had too much even if you feel "okay" to drive. These handy blood alcohol tracking apps will let you know when you're good to go, or when it's time to call an Uber.

BACtrack
AlcMod
virtualAlco BAC calculator
Drink Keeper
Virtual Bar

Best Apps

Highest scored apps in the category

BACtrack
BACtrack

BACtrack

KHN Solutions Inc

Transform Your Smartphone into a Breathalyzer with BACtrack®

Transform Your Smartphone into a Breathalyzer with BACtrack®

Easily estimate your BAC (Blood Alcohol Content) with a BACtrack smartphone breathalyzer and the free companion app. Designed by BACtrack, the leading manufacturer of personal and professional breathalyzers, this app connects to your device wirelessly via Bluetooth®, and allows you to measure your alcohol level with both the award-winning BACtrack Mobile Smartphone Breathalyzer,...

AlcMod
AlcMod

AlcMod

William Lechner

AlcMod paces your drinking in real time so that you never end up drinking more than you planned

AlcMod paces your drinking in real time so that you never end up drinking more than you planned. You will enter information (such as gender, weight, and drinking limits) and the app will use these values to calculate your drinking pace. Once you set your limits the app will tell you how long you should wait until having your next...

virtualAlco BAC calculator
virtualAlco BAC calculator

virtualAlco BAC calculator

Maciej Geciow

!!!!!!!!!!!!!!!! DISCLAIMER !!!!!!!!!!!!!!!!
VirtualAlco application is for entertainment and informational purposes only. This is not intended as a scientific tool for measuring Blood Alcohol Concentration (BAC), but only for adults of legal drinking age to understand the factors that affect their BAC. The app should not be used to determine wether a person is able to drive or not. Never use...

Drink Keeper
Drink Keeper

Drink Keeper

Calvin Chestnut

Introducing Drink Keeper, the best way to keep track of blood alcohol content during a night of drinking

Introducing Drink Keeper, the best way to keep track of blood alcohol content during a night of drinking. Drink Keeper avoids requiring expensive hardware that needs to be regularly calibrated and reset by using info about your body, your drinks, and a proven algorithm to determine BAC.

Drink Keeper works with Health on iPhones and iPods with iOS 8, to make...

Virtual Bar
Virtual Bar

Virtual Bar

Foundation for Advancing Alcohol Responsibility

The Virtual Bar uses the latest science to help you not only get a better understanding of how different factors affect your blood-alcohol concentration – or BAC – on an individual level, but also can help you see how your night could go depending on the food you eat, the water you drink throughout the night, and other important variables

The Virtual Bar uses the latest science to help you not only get a better understanding of how different factors affect your blood-alcohol concentration – or BAC – on an individual level, but also can help you see how your night could go depending on the food you eat, the water you drink throughout the night, and other important variables....

Simply enter your data
Wingman - EBAC and Drink Counter

Wingman

Nick Hayward

From a crazy college night to a casual get together, always track your estimated blood alcohol content with Wingman

From a crazy college night to a casual get together, always track your estimated blood alcohol content with Wingman.

Wingman's sleek and intuitive design makes it easy to track your drinks and to see your estimated blood alcohol content level. Just plug in you gender, age, height, and weight the first time you open up the app, and then let...

DrinkMate + Happy Hour Hunter
DrinkMate + Happy Hour Hunter

DrinkMate + Happy Hour Hunter

Edge Tech Labs

Happy Hour Hunter:

Happy Hour Hunter:
A living map of local happy hour deals around you! Find active drink and food deals around you, plan out a custom Happy Hour, and share it with your friends! Help keep deals up to date with your own edits and earn points and badges along the way.

Become a Happy Hour master in your city and never miss...

Also Good

Apps with average score

instaBAC
instaBAC
instaBAC

instaBAC

Zachary Gutterman

instaBAC calculates your Blood Alcohol Content in real-time with a beautiful and simple interface packed with features. Using the standard Widmark formula, instaBAC helps you stay informed during a drinking session and will guide you to the "pleasure zone."

GET STARTED
To start, enter your weight, gender and what type of drinker...

Alcohol Monitor Pro – BAC Calculator
Alcohol Monitor Pro – BAC Calculator
Alcohol Monitor Pro – BAC Calculator

Alcohol Monitor Pro – BAC Calculator

Maxwell Software

Alcohol Monitor Pro is here to calculate the blood alcohol content (BAC) simply and easily.

Just select your gender, weight, how much have you drunk and how long have you been drinking, Alcohol Monitor will calculate your BAC quickly and smartly.

With Alcohol Monitor Pro, you can get your current BAC level,...

Drive Sober
Drive Sober
Drive Sober

Drive Sober

Element Creative LLC

The Wisconsin Department of Transportation’s ZERO IN WISCONSIN - DRIVE SOBER mobile application has been developed to assist individuals who may have had too much to drink find a safe ride home other than driving. It also serves to provide interactive information on the dangers of impaired driving, such as:

-Blood...

iBAC Calculator
iBAC Calculator
iBAC Calculator

iBAC Calculator

eKiwi

Calculate your and your friends blood alcohol level (BAC) with that easy to use app. Enter start and end time of drinking, the number of your drinks and you will get the calculated blood alcohol levels (BAC)instantly. The live mode always calculates your current alcohol level.
Add and edit as many...

TrackBAC
TrackBAC
TrackBAC

TrackBAC

JITNC

How much do you really drink?

TrackBAC - "The BAC calculator that keeps you on track” is an alcohol consumption monitoring tool for the iPhone/iPod touch.

*** TrackBAC is the Featured Free App on AppChronicles.com ***

With TrackBAC you can:

* Set your target Blood Alcohol Concentration (BAC) limits.
* Record your alcohol consumption.
*...

Cheers! - Blood Alcohol Content (BAC) Calculator
Cheers! - Blood Alcohol Content (BAC) Calculator
Cheers! - Blood Alcohol Content (BAC) Calculator

Cheers! - Blood Alcohol Content (BAC) Calculator

Jaroslaw Bielawski

Cheers! has an alarm which allows you to control the amount of consumed alcohol, so that you can be sober for a particular time.

Set your sobering-up time and enter each alcoholic drink you have in the application. Have a good time until Cheers! lets you know you should stop drinking!

---------------------------------------------------------

Cheers!...

RationAle – Drink Tracking Assistant
RationAle – Drink Tracking Assistant
RationAle – Drink Tracking Assistant

RationAle – Drink Tracking Assistant

Tom Charman

RationAle gives you a rough guess at your blood alcohol content (BAC) based on the drinks you’ve had recently. Keep a list of your favourite drinks, or just enter the amount of standard drinks directly.

The app is especially handy when you've got an Apple Watch: your can add drinks...

Alcoholmeter
Alcoholmeter
Alcoholmeter

Alcoholmeter

Silvia Martinez

Alcoholmeter is the best app to calculate your blood alcohol concentration (BAC) after a couple of drinks! Just input basic information about yourself and what you've been drinking and let the app tell you what your BAC level is.

The app also lets you know in how much time you...

Boozed? Drink Tracker.
Boozed? Drink Tracker.
Boozed? Drink Tracker.

Boozed? Drink Tracker.

Tantsissa

Boozed? is a Today View widget for capturing, calculating & displaying your current estimated blood alcohol content (eBAC) reading. It lets you enter a drink in under three taps without needing to unlock your phone. It means not needing to remember when & how many drinks you have had.

Boozed?...

Blood Alcohol Content Calculator
Blood Alcohol Content Calculator
Blood Alcohol Content Calculator

Blood Alcohol Content Calculator

Socially Conscious Software LLC

Are you drunk? Have you been drinking? Better safe than sorry!

The BAC Estimator calculates your blood alcohol concentration for you!

Easily search for taxi cabs near your current location right through the app!

The BAC Estimator calculates your blood alcohol concentration based on your weight, the number of standard drinks you have...

Easy BAC Lite
Easy BAC Lite
Easy BAC Lite

Easy BAC Lite

Kaeli Soft

Easy BAC is THE BAC CALC app you need.


** Easy **

- Define your profile,
- Enter your consumption,
- Access to result in live.


** Quick **

The consumption management system provide by Easy BAC is user-friendly:
- save your session in live,
- intuitive user interface,
- customizable consumption management.


-------------------------------

/!\ Lite Edition Limitation /!\

-------------------------------

You can only...

alcCalc: Estimates and Displays the Alcohol Decomposition, the Time You'll Sober Up and the BAC in Realtime.
alcCalc: Estimates and Displays the Alcohol Decomposition, the Time You'll Sober Up and the BAC in Realtime.
alcCalc: Estimates and Displays the Alcohol Decomposition, the Time You'll Sober Up and the BAC in Realtime.

alcCalc: Estimates and Displays the Alcohol Decomposition, the Time You'll Sober Up and the BAC in Realtime.

NOHT CO.,LTD.

Attention/Disclaimer 
The values displayed by the app are only rough estimates calculated from your weight. 
The accuracy of the app cannot be guaranteed. 
To learn more about our calculation method, please read "Calculation Method and Disclaimers" disclosed in the app. 

Overview

Just enter what you've had to drink, and you can calculate your blood/breath alcohol...

Promille - Blood Alcohol Tracker
Promille - Blood Alcohol Tracker
Promille - Blood Alcohol Tracker

Promille - Blood Alcohol Tracker

Johan Wallaert

Promille is a blood alcohol concentration tracker that takes into account the drinks you had when you had them.

Typically, a drink is selected from your favorites list when you’re about to consume it, but you can just as well add drinks that you had earlier and specify when and...

BAC Tracker
BAC Tracker
BAC Tracker

BAC Tracker

John Marco

BAC Tracker is an easy and accurate way to determine your blood alcohol content (BAC). This app can calculate your current BAC based on a formula that keeps weight, gender, and alcohol by volume (abv) in mind. Users need only to enter the time they started drinking, the amount in...

Bar Tweet
Bar Tweet
Bar Tweet

Bar Tweet

Delta Vee

Bar Tweet is a blood alcohol content (BAC) calculator with attitude!

You record the consumed alcohol by dragging a corresponding drink from the shelf or beer tap to the bar counter. The counter acts as a timeline so that the older the drink, the further left it is on the counter....

eBAC(Breathalyzer)
eBAC(Breathalyzer)
eBAC(Breathalyzer)

eBAC(Breathalyzer)

A&A Product Co., LTD

eBAC_FiT smart phone Fuel Cell alcohol breathalyzer has been designed to give an indication of the presence of alcohol in the blood. The device gives a digital read out of a person’s approximate Blood Alcohol Concentration (known from here on as BAC) and use the smart phone for display and...

BACCards.com
BACCards.com
BACCards.com

BACCards.com

Blu Sky Creative

Track your BAC
Monitor your alcohol consumption and view your estimated BAC results.

This convenient monitoring tool will continuously track and estimate your alcohol consumption and Blood Alcohol Concentration (BAC) level over time. Simply record your drinks for an up-to-date estimate of your BAC.

Our BACcards.com app was developed in conjunction with...

Alcohol Monitor
Alcohol Monitor
Alcohol Monitor

Alcohol Monitor

Palmanac Limited

Keep tabs on how many alcoholic drinks you've had on a night out, or over any period of time easily with Alcohol Monitor.

Features a handy blood alcohol meter to show an estimate of the current alcohol content in your bloodstream, and how long you will have to wait to...

Alcohol Monitor – BAC Calculator
Alcohol Monitor – BAC Calculator
Alcohol Monitor – BAC Calculator

Alcohol Monitor – BAC Calculator

Maxwell Software

Alcohol Monitor is here to calculate the blood alcohol content (BAC) simply and easily.

Just select your gender, weight, how much have you drunk and how long have you been drinking, Alcohol Monitor will calculate your BAC quickly and smartly, then you will know whether you have exceeded a certain level...

BAC Watch
BAC Watch
BAC Watch

BAC Watch

icreative

Been drinking a lot? Wondering how much alcohol you've taken in?
Use BAC Watch to get a better idea of the blood alcohol contents in your body!

Either choose from the existing set of drinks that's provided with the app and/or create your own drinks
and leave the rest to the app....

GuardRide Driver
GuardRide Driver
GuardRide Driver

GuardRide Driver

Owen Brown

The Driver app is used by the GUARDRIDE system's driver for monitoring speed, location, face recognition, and blood alcohol content using the BACtrack Mobile device. This data is reported to the companion app Guardian of the same system.

GUARDRIDE believes the best way to reduce drunk driving among young drivers is...

Alcol Test (Blood Alcohol Content)
Alcol Test (Blood Alcohol Content)
Alcol Test (Blood Alcohol Content)

Alcol Test (Blood Alcohol Content)

Concept Studio

Theoric Alcol test (blood alcohol content) fast and simple to use with a rich list of drinks. For iphone and ipad!

IMPORTANT: The app is intended for entertainment purposes ONLY and that the results should not be used to determine if it's safe to drive or not.

Other Apps

Could be good for special cases

AlcoLog

AlcoLog

Dmitry Muravyev

AlcoLog - an application that allows you to calculate Blood Alcohol Content (BAC), intoxication and general condition of the body on the basis of information related to consumed beverages. The calculations also take into account the time of consuming, the amount of alcohol consumed, the type of beverage and many other parameters. Calculation results are displayed in graphs on the timeline. The graphs clearly show the previous states of the organism and a forecast for the future state.

Key features of AlcoLog:

- BAC calculation is based on the Widmark formula which is often used by professional medical experts to determine the amount of consumed alcohol or the level of alcohol in the blood;
- Estimated BAC value depends on the amount of alcohol consumed, intervals between drinks, and the body's ability for absorption / elimination of alcohol per unit of time;
- In addition to the basic parameters (your weight and gender) there are several parameters also taken into account, such as individual tolerance to alcohol and the level of toxicity of alcoholic beverages (e.g., darker beverages have more harmful effects on the body than the lighter ones);
- Calculation of the intoxication level and overall health (the calculation takes into account the impact of withdrawal symptoms on overall health);
- Graphical representation of data with the ability to scroll and zoom;
- Possibility to correct beverage parameters and to take into account previously consumed drinks (up to one hour back). Cancellation of erroneous input data;
- Displaying alerts (and notifications) about the current state of the body: car driving prohibition (in accordance with the laws of your country), prohibition of telephone calls, etc.;
- The calculation of the estimated duration of your active alerts;
- Visual displaying of the health status on the calendar;
- Ability to create new drinks;
- Displaying statistics on consumed beverages for any period of time;
- Intuitive interface;
- Efficient algorithms for calculations and graphics, which minimise the CPU load;
- Proprietary database containing all calculations and information about consumed beverages;
- Ability to clear the database.

Attention! The calculated data can only serve as an estimate of BAC and general condition of the body and never should be used to determine if you are able to drive, cannot be used as evidence in court and should not be interpreted as a medical fact.

Smart Alcohol Test

Smart Alcohol Test

NETIGEN Kluzowicz sp. j.

Please remember that app's calculations should not be used to determine a user's ability to drive.


Alcohol Test has several options:
• CALCULATE – by choosing the type and amount of the alcohol you drank, you can find out how much intoxicated you are, and when theoretically you’ll be sober enough to drive according to law in chosen country. Set your gender, weight, height and at which hour did you start and stop drinking. It will calculate like breathalyser your maximum intoxication state and inform at which hour you will be theoretically sober.

• REFLEX TEST – a simple trial in which you might check your actual reaction time. Ingestion of even small amounts of alcohol may result in a significant prolongation of the reaction time. Your average time reaction should be less than 0.4 second, if it’s longer than you’re probably still not sober enough to drive a vehicle. Tap the screen in the right moment to stop the virtual car, and prevent the road accident!

• ALCOHOL TYPES – you can add new types of alcohol by typing in the proper box its title, capacity in milliliters and alcohol content in percentage (vodka, wine, beer, drinks and cocktails).

• LEGAL LIMITS – you can also add by yourself another national limits on the acceptable level of blood alcohol concentration, allowing legally to drive a car.

Please remember, that Alcohol Test is an application that only provides entertainment and the results are not scientific of evidential value. It’s based only on a mathematical algorithm and its results may differ from the actual! To get an accurate result of the blood alcohol concentration, you should use a real device.

GuardRide Guardian

GuardRide Guardian

Owen Brown

The GUARDRIDE Guardian app is the parent or supervisors app for monitoring the companion app GUARDRIDE Driver from the same GUARDRIDE system.

GUARDRIDE believes the best way to reduce drunk driving among young drivers is to create a way for parents to constructively engage with their kids and form a partnership based on the principle of “trust but verify”. Because even a good kid can make a bad decision. GUARDRIDE is designed to help prevent that bad decision by having them agree to use the system every time they get behind the wheel. And if they don’t their parents will know.

GUARDRIDE is a smartphone based DUI monitoring system that you can use to partner with your high school or college age drivers to help prevent them from drinking and driving.

Using GUARDRIDE is as simple as downloading the Guardian APP on your phone, the Driver APP on your kid’s phone and giving them the systems BACtrack Mobile breathalyzer. Nothing has to be installed on the vehicle. During a GUARDRIDE session, they must pass a breathalyzer test before they drive while identifying themselves using facial recognition software. The default BAC (Blood Alcohol Content) setting is a zero tolerance 0.00% BAC.
If they fail their breathalyzer test or start driving without taking one you will be notified on your phone and be shown their location on GPS so you can take action. It takes less than 30 seconds for your kid to take the test, and give you peace of mind.

This app is a free download but requires a subscription fee to be used. The companion app 'Driver' of the same GUARDRIDE system requires a third party breathalyzer device called BACTrack of which it communicates through bluetooth to report alcohol levels. Please review further information about this system at http://guardride.com.

ImNotLoaded Alcohol Breathalyzer

ImNotLoaded Alcohol Breathalyzer

PegPeg

Now 50% off!!
------------------------------------------
The perfect iphone breathalyzer has arrived!

#5 in the TOP downloads Spanish AppStore

THE ONLY BREATHALYZER WITH BLOWING FEATURE!!!

Finally you could know your Blood Alcohol Content (BAC) before taking your car or motorbike, ImNotLoaded gives you a quickly estimation based on the drinks you've consumed.

------------------------------------------
- IAppReview - "Definitely worth downloading" Rated: 4/5

- WTFApps - "Very funny and useful app" Rated: 8/10
------------------------------------------

DESCRIPTION:

It's perfect for having a good time with your friends, besides the BAC estimation the app also show funny messages describing your drunk level.

Get you BAC estimation easy and quicly, you only need to select the drinks you've took and make a hard blow!!

Now with international metric measures and US support.

It works in all Iphones and any Ipod Touch (using an external microphone).

------------------------------------------
You can contact for support, problems or to help about localizing in your language at [email protected]
------------------------------------------

The results provided by this application are estimates only, and are not a true replacement for your own judgement and a physical breathalyzer.

------------------------------------------

Perfect for fans of iSteam, Ocarina, Sonic Lighter, iBeer, Smule apps, Wooble, etc.

iDrunk Pro

iDrunk Pro

Dirty Window Productions

iDrunk, A Must have for everyone who enjoys nightlife! :)


"If you want to track your drinking then iDrunk Pro is a very thorough and useful app with a lot of nice features, such as the graph section." -iPhoneWorld.ca (9/10)


Equip your iPhone with a fully blown tool for keeping track of drinks and calculating your bac based on them.

iDrunk is a polished application that keeps track of all drinks you have entered and shows you your blood alcohol content at the moment.

iDrunk remembers all entries you have made so you don't have to type in every drink every time you want to see your bac.


Features:

-Shows blood alcohol content in permilles.
-Lets you add drinks to your history by
drink type, volume (fl oz or cl) and alcohol percentage.
-Fully editable drink history.
-Companion watch app.

Configurable information:
-weight (lb or kg)
-sex
-input in fl oz or cl
-option to clear the history completely or to clear entries
that are older than a week/month/year.
-configurable values for green/yellow/red values in meter. (settings app)


Disclaimer:
Please note that there is no blood alcohol calculator that is 100% accurate because of the number of factors that come into play. Do not rely on these results to drive or work. Never drink and drive. This Application is for entertainment and informational purposes only and is not to be relied upon as legal advice.

ImNotLoaded Breathalyzer

ImNotLoaded Breathalyzer

PegPeg

After the great success of the paid version, now available for free.

------------------------------------------
The results provided by this application are estimates only, and are not a true replacement for your own judgement and a physical breathalyzer.

The app is intended for entertainment purposes only.
------------------------------------------

The perfect iphone breathalyzer has arrived!

#5 in the TOP downloads Spanish AppStore

THE ONLY BREATHALYZER WITH BLOWING FEATURE!!!

Finally you could know your Blood Alcohol Content (BAC) before taking your car or motorbike, ImNotLoaded gives you a quickly estimation based on the drinks you've consumed.

------------------------------------------
- IAppReview - "Definitely worth downloading" Rated: 4/5

- WTFApps - "Very funny and useful app" Rated: 8/10
------------------------------------------

DESCRIPTION:

It's perfect for having a good time with your friends, besides the BAC estimation the app also show funny messages describing your drunk level.

Get you BAC estimation easy and quicly, you only need to select the drinks you've took and make a hard blow!!

Now with international metric measures and US support.

It works in all Iphones and any Ipod Touch (using an external microphone).

------------------------------------------
You can contact for support, problems or to help about localizing in your language at [email protected]
-----------------------------------------------



Perfect for fans of iSteam, Ocarina, Sonic Lighter, iBeer, Smule apps, Wooble, etc.

iBAC CalculatorFree

iBAC CalculatorFree

eKiwi

Calculate your and your friends blood alcohol level (BAC) with that easy to use app. Enter start and end time of drinking, the number of your drinks and you will get the calculated blood alcohol levels (BAC)instantly. The live mode always calculates your current alcohol level.
Add and edit as many users as you want. A huge number of drinks are predefined for immediate use. You can set up new drinks or edit default ones.
The blood alcohol chart shows when you reach a certain level or when you are going to be sober again. Share your BAC via Twitter or Facebook. Let all your friend participate in your party.
Different countries use different units to measure the BAC. For example Germany uses permille instead of percent.
You can set up a country specific units, depending on the country where the party is.
The commonly used “Standard-Drink-Units” are also calculated for different countries.
All calculations are based on the approved Widmark-Formula.

Disclaimer: This app is intended for entertainment purposes. All calculation results are not guaranteed. The real BAC may vary depending on your physical condition. Therefore, the app can not be used for controlled drinking to statutory alcohol limits or to determine fitness to drive.

Breathalyzer calculation

Breathalyzer calculation

Dorian Rouby

This app is intended for entertainment purposes only and does not provide true breathalyzer or blood alcohol calculator functionality.

You just drink alcohol and want to know your blood alcohol concentration ?
Want to know if you can drive ?

You will have to give information so that the breathalyzer can determine with maximum accuracy level of alcohol in your blood.

Breathalyzer is an application which can give the level of alcohol consumption with some precision. Simply enter your settings , the types of beverages and feed intake whether, to know if you can drive ! The application will show your blood alcohol concentration and the state in which you should be, based on the information you provided . You will also know how long time you can drive !

- Breathalyzer is an application focusing on simplicity, clarity and efficiency.
- Breathalyzer is available in several languages.
- Breathalyzer is intuitive.


Information:
We use the formula of Watson to determine your blood alcohol concentration . Watson's formula is one that helps determine your blood alcohol level with maximum accuracy !


For more information do not hesitate to contact us.
Do not hesitate to give us feedback on the Breathalyzer application!

Green Light FREE - blood alcohol level calculator

Green Light FREE - blood alcohol level calculator

Made Mobile Creative

Simple BAC is a sophisticated, yet easy to use blood alcohol content (BAC) calculator. It can calculate your current blood alcohol content based on drinks that you enter or you can plan ahead your alcohol consumption. Did you know that even one glass of wine can impair your ability to drive and will be forbidden in many countries? Now you can easily check ahead of time, how much you can drink to be able to drive.

*************
Features:

- Plan alcohol consumption ahead: have you ever wondered, how many beers you can drink if you need to drive in two hours? Now you can easily calculate it!
- Sophisticated algorithm, which takes into account your gender, weight, height and age
- Apple Health app integration: automatically read user data, like weight, height and age and write blood alcohol content back to the Health app
- Offline access: your data is kept privately on your device, we NEVER send it to the cloud
- The application knows allowed blood alcohol limits around the world
- Multiple users: easily switch between your own and your friend’s blood alcohol content
- Both metric and imperial units: no need to spend time looking for unit settings, easily switch between cm and feet, kg and lbs just when you need it
- Beautiful widget: track your current blood alcohol content without opening the app, supports multiple users
- And much more to discover :)

*************
Disclaimer: This application’s calculations should not be used to determine a user’s ability to drive.

Your actual BAC might depend on a variety of different factors, like health, consumed food, physical activity, genetics. Do not rely on the results to drive. The developer of the app is not responsible for any legal issues that you might have. The developer of this app is not encouraging to drink and drive. You are not allowed to engage in activities (e.g driving) based on application calculations.