A free program for Android, by Fanaka Collection.

It is a free app which gives you tips on how to gain weight fast. It provides various diet plans and exercises. All of them are aimed at helping you to achieve your goal in the fastest way possible. 

The app is specially designed for people who wish to gain weight fast, but don’t know what to do or how to go about it. It provides a complete set of instructions on the subject of healthy diet, along with some useful and practical exercises. You will find that the process of gaining weight is not as difficult as it may seem. Once you have made the decision to take on this challenge, you can start to take action. The app also provides you with some helpful tips, which can help you to achieve your goal in the fastest way possible.

The app is also useful for those who are trying to lose weight.