A free program for Android, by CodePLeX.dev.

Intervaly is an advanced Interval timer app. It is easy to use and ad-free! All types of exercises, including Tabata, HIIT, boxing training, circuit training, etc., are ideal for it.

The Intervaly application has a user-friendly interface that makes it simple for all users to navigate. Additionally, it provides basic controls and accessible features to make its utilization free of hassle. 

Intervaly offered features: