Today’s Apps Gone Free: Decibel 10th, Brain Wave Study Smart, Universe Simulator and More

Measure the sound around you, gain focus and concentration with low frequency waves, and explore the physics of the Universe with today’s collection of apps and games.

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.

Universal:

Frugi – Personal Finance Manager to Track your Budget, Expenses, Income and Future Reminder ($4.99 → Free, 9.8 MB): Find out where all of your money is going with this finance app. It’s ideal for those who need to stick to a budget.

Frugi makes recording transactions a painless experience. Just swipe down to add or subtract from your total balance. You’re able to attach a category to each transaction and select a date if necessary. All of your transactions will be calculated automatically and presented in list form. Transactions can be removed with a right to left swipe, and you can move them to a future date with a double tap. The app also includes the ability to manage multiple accounts, and a calendar view.

Frugi – Personal Finance Manager to Track your Budget, Expenses, Income and Future Reminder is available for free for a limited time. It has a 4.5-star rating with a total of 163 ratings.

Brain Wave Study Smart – Advanced Binaural Brainwave Entrainment for Studying ($0.99 → Free, 86.6 MB): Gain focus and concentration by listening to low frequency waves with this health app. It provides a great way to help retain information.

Brain Wave Study Smart offers advanced brainwave entrainment therapy. You’re able to select from morning, mid-day, afternoon, evening, and late night programs, and choose a soothing background sound to accompany them. Then hit play and allow the app to sync your brainwaves to the deeply relaxing low frequency theta and beta waves. The app also allows you to adjust the signal intensity and save your settings for later use.

Brain Wave Study Smart – Advanced Binaural Brainwave Entrainment for Studying is available for free for a limited time. It has a 3-star rating with a total of 396 ratings.

UNIVERSE SIMULATOR ($0.99 → Free, 204.0 MB): Explore the physics of the Universe with Universe Simulator. It’s not just an educational tool.

Universe Simulator provides you with a digital recreation of our Solar System that’s built to scale. Planets orbit the Sun at their real life distance and velocity. Universe Simulator’s accurate planet mass, density, and volume allow you to play with gravity and see exactly what would happen as a result. Planets will collide and absorb each other, creating new objects with different volumes. You’re also able to travel through time and watch the Universe unfold.

UNIVERSE SIMULATOR is available for free for a limited time. It has a 4.5-star rating with a total of 23 ratings.

Decibel 10th: Pro Noise Meter,Sound Pressure Level ($1.99 → Free, 28.2 MB): Turn your iDevice into a noise meter with Decibel 10th. It provides a fun way to measure sound.

Today only: Unlock the pro version of Decibel 10th free of charge! Simply tap the red “pro” button in the middle of the screen and confirm your action.

Decibel 10th provides highly accurate results thanks to its pre-calibrated measurements. The app will immediately begin to measure the sound in the room at launch. The FFT and BAR graphs will fluctuate in real-time along with the current, average, and maximum decibel level. The app also includes the ability to pause the meter, export data, adjust weight filters, view time weightings, and even share a photo with a data overlay.

Decibel 10th: Pro Noise Meter,Sound Pressure Level is available for free today only (01/07). It has a 4-star rating with a total of 2860 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.