Why I built this app
I’m an engineer, and I love writing code — I sit down and hours disappear. It caught up with me: rounded shoulders, an anterior pelvic tilt, an aching lower back. I got just about the full set.
One day my back hurt too much to ignore, so I decided to take stretching seriously and downloaded one of the popular stretching apps on the App Store. I rolled out a mat, worked through a whole routine, thought “this actually helps” — and just as I lined up another round, the paywall appeared.
So I thought: why not build my own app, with no cap on how many times I can train in a day, so I could really keep stretching and undo what sitting had done to my posture — and help anyone else in the same spot. That’s how Zestimer was born. Train as many times as you like, no limits: it’s here to make stretching easier to start, and easier to keep up.
Later I noticed something else. When people’s backs hurt, they go to YouTube and look for stretching videos from physical therapists and coaches. But once you find one you like, without a follow-along version you still have to remember the moves and count the time yourself. The videos pile up in your saves and rarely get opened again. So I added YouTube follow-along: turn any Short or video into a timed routine you can just follow, counting down and calling the rests, with every move and every interval adjustable to your own level.
Zestimer isn’t only a stretching app, of course. Use it for HIIT, Tabata and interval training too — or let AI put together a routine that suits you.
A simple, dependable partner you open and start — so moving your body doesn’t take much thinking.
If you sit a lot and your back aches too, come and try it. A little movement every day, and your body feels a little better. 🍋


































