Today’s Apps Gone Free: Visual Math 4D, Pila, Rabbit and More

Visualize functions, solve futuristic puzzles, and keep track of your habits 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.

iPhone:

Rabbit – Habit Reminders ($0.99 → Free, 18.2 MB): Keep track of your habits with Rabbit. Those who tend to put things off.

Rabbit will nudge you in the right direction no matter what the task. You’re able to keep up good habits like remembering to stretch and break bad habits like skipping important meals of the day. Habit reminders can be set to go off specific days of the week, specific times of the day, and at various frequencies. Rabbit also includes some habit suggestions to get you started.

Rabbit – Habit Reminders is available for free for a limited time. It has a 4-star rating with a total of 12 ratings.

Universal:

Palabras – Learn Spanish Words ($1.99 → Free, 19.8 MB): Learn Spanish words with Palabras. Anyone interested in learning a new language.

Palabras provides a daily dose of Spanish words to learn. Set up a daily reminder window along with how often you want to receive the push notifications. When a push comes through during the day, give it a swipe and view a new Spanish word to learn along with its meaning. Words can be pronounced for you and shared via your favorite social media networks.

Palabras – Learn Spanish Words is available for free for a limited time. It has a 4.5-star rating with a total of 80 ratings.

Visual MATH 4D ($1.99 → Free, 57.3 MB): Visualize functions with VisualMath 4D. Students and engineers.

VisualMath 4D is a professional graphical calculator. It allows you to browse through a collection of built-in functions like trigonometrical, rounding, and sum and product or you can compute your own. Functions can be drawn in 2-D, 3-D, and 4-D all with a time variable. You’re also able to save your functions, rotate and zoom in on the graph in three dimensions, and display multiple graphs at once.

Visual MATH 4D is available for free for a limited time. It has a 4.5-star rating with a total of 55 ratings.

-PILA- ($0.99 → Free, 23.2 MB): Solve puzzles by activating switches in Pila. Fans of abstract puzzle games.

Pila has a futuristic look that in turn makes the gameplay feel fresh. The idea is to push a blue circle into the abyss by removing obstacles. Switches placed all over the screen activate and deactivate objects, so you’ll have to time your taps in order to ensure success. The game includes 50 levels, and a wonderful audio that is best experienced with headphones.

-PILA- is available for free for a limited time. It has a 5-star rating with a total of 18 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.