Ahorra en 365 días is a free Android application developed by mequilahi INFORMATICA sons. The app is designed to help users save money by following the 365-day savings challenge or penny challenge. The challenge is simple; you save a certain amount of money every day, corresponding to the number of the day. On the first day, you save 0.01€, on the second day, you save 0.02€, and so on, until you save 3.65€ on the last day, which will bring your total savings for the year to€.

The app is user-friendly and easy to navigate. You can add as many savings jars as you want by clicking on the "+" button. Once you have created a savings jar, you can click on it to start tracking your daily savings progress. The more you save, the more your savings jar will fill up, providing you with visual motivation to reach your savings goal. You can follow the challenge in sequential order or randomly, and the app will keep track of your progress for you.