About
We build one thing, and it takes twenty-one minutes
Every other app in this category sells you more. More coaches, more tests, more centres, more data. We sell less, on purpose.

Daily hard cap · Zero junk volume
Consistency rate vs 18% gym average
Bodyweight + Calibrated Resistance Loop
Why 21 minutes daily beats two hours on a weekend
The 60-Minute Lie
Every fitness app and gym sells you “more”. More exercises, longer sessions, heavier gear, complex tracking. It feels ambitious on Day 01. By Day 20, scheduling a 90-minute gym trip around work, family, and commute becomes an unbearable friction point.
Atomic Neuromuscular Habit
21 minutes is the scientific sweet spot. Long enough to elicit cardiovascular adaptation, mobility restoration, and metabolic activation — but short enough that your brain cannot negotiate an excuse. No commute, zero prep. You unroll a mat, grab a resistance loop, and you are done.
We Coach. We Do Not Diagnose.
That distinction shapes this company more than any design decision in it. Where we adapt a session for a condition you declared, we tell you exactly what changed and why. Where a number is an estimate, we show the formula it is built from.
Where a question belongs to a physician, we refuse to answer it and point you to a doctor instead. If you are managing an existing injury or condition, consult your physician before starting, and let us know what they recommended.
The people who built it

Achin Srivastava
Founder & CEO
- Founder, Working Weekends
- Shopify growth, D2C, since 2017
Achin Srivastava is the founder of 21Minutes. He's built Working Weekends, a Shopify growth agency working with D2C brands across India, the US and the UAE, since 2017, and has launched several consumer brands of his own.
LinkedIn profile“I built 21Minutes because most people don't quit fitness, they quit long workouts. Twenty-one minutes is all it takes to move, sweat, and show up for yourself today. No excuses, no wasted time. Just press play and get it done.”
Why twenty-one
Everyone said fitness needed an hour. I didn't have an hour, and most people don't. So I asked a simpler question: what's the least time it takes to actually move the needle? It turns out it isn't about grinding for sixty minutes, it's about showing up hard for a short, focused window. Twenty-one minutes is long enough to genuinely work, and short enough that you can't talk yourself out of it. It's also roughly the time it takes to start a habit for the day. Do it daily and you stop negotiating with yourself about whether to train at all. That's the whole idea: make the workout small enough that consistency becomes the easy choice.
ONE GOAL.
TWENTY-ONE MINUTES.
ZERO FRICTION.
The daily guided session, adaptive progression, and your personal Time Bank are free forever. No credit card required. Available now on iOS and Android.


