IntervalGuide — Now on the App Store and Google Play
Smart Apps for Active Lives
We build focused, well-crafted mobile apps for fitness and health. IntervalGuide is available now for iPhone, Apple Watch, Android, and Wear OS.
Our Apps
Focused tools built for people who move.
IntervalGuide
The smart interval timer with real-time heart rate monitoring. Available now for iPhone, Apple Watch, Android, and Wear OS.
iOSApple WatchAndroidWear OSBluetooth HR
Why Tremia?
Privacy First
Your data stays on your device. No accounts, no cloud uploads.
Built for Athletes
Designed with real training in mind, not generic fitness fluff.
Wearable Ready
Companion apps for Apple Watch and Wear OS put your timer and heart rate right on your wrist.