A free app for Android, by Fitivity inc..

The Fitivity Six Pack & Core app is designed for people looking to improve their fitness, lose weight and get toned. The app provides a comprehensive workout program and customized exercises for the core, and offers a variety of ab exercises for all levels.

It comes with a complete guide to all the exercises, so you can follow along and see results. It also comes with a timer to keep track of the duration of each exercise, so you can see how long you need to rest between each exercise and make sure you’re not getting too tired.

This app will help you burn fat, build muscle, and get in shape in a short period of time.

The program is designed to be easy to use and accessible for all.

It will help you burn fat and lose weight while also improving your muscle strength and endurance.

It’s ideal for people who want to lose weight and improve their health, but don’t know how to go about it.