52 Weeks Money Challenge - Free is an Android finance app developed by Mobills Apps. The app is based on the popular 52-week challenge for saving money, which is a great way to start saving money and gather a good amount after one year. The challenge is all about saving a certain amount every week, starting from $1 in the first week and increasing by $1 each week, up to $52 in the 52nd week. By completing the challenge, you'll have at least $1,378 after 52 weeks to help you with Christmas shopping, a vacation trip, or even to establish an emergency fund.

The app's features include the ability to add a challenge with an amount and a starting time, which gives the app the responsibility to manage all the dates and amounts after that. You can follow the challenge created over the weeks and control the deposits. The app also provides weekly reminder notifications for the deposits, making it easy for you to stay on track. The app is free to use and is a great way to learn how to save money by making it a habit.