SportTimer is an Android Application that allows to construct timers for a sport routines. You can configure multiple timers and for each multiple durations for active vs. calm periods. At the end of each duration a sound will play to indicate the change of duration.
SportTimer is available in English and French.
This application is open source under the MIT license.
The application isn´t accessible from the PlayStore. You can download it from the GitHub Release page.
Each release is constructed using Travis-ci and automatically deployed as a GitHub release without any human intervention. It ensures that no malicious code is added during the build process. Directly from the source to your phone :).
You can check the builds for each release here on Travis-ci.
The icon are generated from AndroidAssetStudio:
Sounds are downloaded from SoundBible