Construct words before your letters expire in Simple Machine’s fast-paced word game, LEX. We also have a powerful productivity app, and a digital periodic table.

All app prices are subject to change at any time and without notice regardless of stated free duration. Price changes are solely under the control of the developers.

iPhone:

UpWord Notes – Jot lists, snippets and reminders with Dropbox backup & TaskPaper (like Astrid) ($0.99 → Free, 23.9 MB): The most elegant and efficient note taking app you may ever use.

It only takes a single tap to start jotting down notes or a list of tasks for the day. Want to turn your regular text into a list? Swipe right to left right over the top of it. Swipe right to left again to highlight the text. You can also swipe left to right to cross off text and mark it as complete. Notes and lists can be organized within folders, shared via a variety of methods, synced with Dropbox, and searched for. You’re also able to attach reminders to your notes. The app includes multiple font sizes to choose from, undo and redo, TextExpander support, word count, and landscape support.

UpWord Notes – Jot lists, snippets and reminders with Dropbox backup & TaskPaper (like Astrid) is available for free for a limited time. It has a 4.5-star rating with a total of 165 ratings.

Perfect Popcorn ($0.99 → Free, 69.2 MB): Get the perfect pop every time with this fun utility app from the makers of Pop Secret popcorn.

Just put your Pop Secret bag in the microwave and enter the suggested cooking time from the packaging. Then turn up the volume on your iDevice, start the app, and start your microwave. The app will listen for pops coming from your microwave to determine the precise moment when your popcorn is fully popped. You’re able to monitor the progress of your bag via “Inside the bag vision,” and you can read fun movie facts while you wait. The app includes the ability to time regular and snag bags of Pop Secret popcorn.

Perfect Popcorn is available for free today only (07/24). It has a 4-star rating with a total of 464 ratings.

Universal:

LEX ($0.99 → Free, 25.8 MB): A fast-paced word game from the creators of Circadia and 4 Thrones.

At the beginning of each game you’ll be presented with a random collection of letters. Simply tap on the letters to create valid words. Each letter has a value attached to it, which also indicates how long it will take to expire. Letters with low values will expire quickly, so you must make sure to use them as quickly as possible. The moment one letter expires, it’s game over. Every three valid words created will increase your multiplier level and the speed of the timers, so just try to hang in there for as long as possible to climb the leaderboards. The game also includes achievements and leaderboards via Game Center.

LEX is available for free today only (07/24). It has a 4.5-star rating with a total of 182 ratings.

Weblock – AdBlock for iOS ($1.99 → Free, 10.5 MB): Block ads and other annoying content in your apps and on the web with this utility app.

Weblock works with any Wi-Fi enabled iDevice. The app will generate a unique configuration link within the Setup menu. Then launch your Settings app, choose the network you’re on, and set your HTTP proxy to “Auto.” A new URL field will appear, where you can paste your unique link. Then make sure to kill all of your active processes, and none of your apps will show text ads, banners, or pop-ups ever again. It even works with YouTube and Pandora! The app also includes the ability to create your own rules and filters, and iCloud support.

Weblock – AdBlock for iOS is available for free today only (07/24). It has a 4-star rating with a total of 389 ratings.

insTuner – Chromatic Tuner with Tone Generator ($3.99 → Free, 14.4 MB): Keep your instruments in tune with this music app.

It can tune basically any instrument that sustains a tone. You’re able to choose from three display types, log, linear, or note, all of which feature an easy to read fixed note wheel. The app also includes line-in and built-in mic modes, customizable transpositions, a tuning range from C0 to B8, more than 30 historical temperaments, 12 notations, and a tone generator.

insTuner – Chromatic Tuner with Tone Generator is available for free today only (07/24). It has a 5-star rating with a total of 589 ratings.

EleMints: Periodic Table ($4.99 → Free, 3.8 MB): Unleash the science geek within with this digital and fully interactive periodic table.

You’re able to view the periodic table in portrait or landscape orientation. Utilize the common pinch and pull gestures to zoom in and out of the table. Tap on the classification tab to filter out and highlight elements with particular properties. You’re also able to view all of the elements in list form, read articles from the built-in library, view property trends in graph form, and calculate molar mass.

EleMints: Periodic Table is available for free today only (07/24). It has a 3.5-star rating with a total of 6 ratings.

City Maps 2Go Pro – Offline Map and Travel Guide ($2.99 → Free, 26.9 MB): Download entire city, county, district, and province maps for offline viewing with this navigation app.

You’re able to look through maps by country, or you can search for a specific one by name. Downloaded maps include the ability to search for specific streets, view points of interest, and bookmark your favorite locations. The app includes a total of 6,700 downloadable maps.

City Maps 2Go Pro – Offline Map and Travel Guide is available for free today only (07/24). It has a 4.5-star rating with a total of 594 ratings.

That concludes today’s issue of Apps Gone Free. If you like staying on top of these daily deals, don’t forget to check out our free AppsGoneFree app. It provides all the deals each day, and even an archive of past deals that are still active.

Developers:

If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:

  • It must have at least a three-star average rating at the time it goes free.
  • The app must not have been free numerous times (3+) over the last six months.
  • The free version of your app must not include ads.

To submit an app, simply send a request to tyler@appadvice.com with the subject “Apps Gone Free.” Please include the name of the app, a link to it in the App Store, when and for how long you intend to offer the app for free, and anything else you would like to share. We will take it from there.