Kaga Coach listens to your heart rate as you train and speaks up at the right moments - pushing, resting, struggling, done. Pick a personality, or record your own coach and send it to someone you love.
Choose a built-in coach - or record your own, line by line, in any voice. Your partner cheering you through intervals. A parent on a recovery walk. A friend across the world. Record it, share it as a single file, and their voice coaches you for real.
No account to create, nothing to log into, no fiddling before every workout. Kaga Coach stays out of your way.
Open the app and go. No sign-up, no password, no email - and nothing to remember.
It remembers your sensor and reconnects in seconds, every session. Strap on, press start, you're coached.
Lock the phone, play your music - the coach keeps talking through your workout the whole way.
A chest strap, or a watch that broadcasts heart rate - Garmin, Polar, Coros, Wahoo and more. No special hardware.
It reads your effort in real time and speaks at the moments that matter - warming up, pushing, struggling, recovering, done.
The coach ducks under your music and comes back - or pauses it, your choice. Works with the phone locked in your pocket.
Effort measured against your own heart, the way real training works - from easy base to the red zone.
Every session saved - time in each zone, your week against the 80/20 plan (about 80% easy, 20% hard), a calendar of green days.
Stay pinned at max too long and the coach tells you to ease off - encouragement, never reckless.
The fittest endurance athletes spend about 80% of their training easy - low heart rate, conversational pace - and only 20% hard. It sounds backwards, but going easy most of the time builds a bigger aerobic engine, keeps you fresh, and lowers the risk of burnout and injury - so the hard 20% actually counts.
Kaga Coach builds it in: every week it shows your time in each zone against an 80/20 target, so you can tell at a glance if you're going too hard, too often - the most common amateur mistake.
No account. No servers. No tracking, no ads. Your heart rate, your history, and any voices you record stay on your device - and you can export or erase all of it any time.