Every set logged. Every session, against your last.
Your gym's app kept none of this. Zonesplit keeps all of it, every station and every session, straight off your wrist. Feeling fitter is a guess. This is the number.
Your setup decides what's next →
Ten exercises, ten splits, ten comparisons. The improvements are small. They compound.
Functional fitness · Tue 04 Aug · 52:14
The watch runs the session on its own. You swipe when the block changes, and type a number only where no sensor can know it.
Photograph the board. Train off your wrist.
Screenshot today's session from your gym's app, or snap the whiteboard on the way in. It is parsed into stations and sent to your watch before you have finished warming up.
Four kinds of work, tracked the way each should be.
The watch captures while you train, with hands busy and one gesture. The phone does the thinking afterwards. Inside the app, amber means you marked it and cyan means it marked itself.
See exactly where you lost time
One swipe stamps the split. Time per station, every round, with your heart rate mapped to each movement.
You find the station that cost you the session, not one blob score for the whole class.
Run without touching a thing
Hit the run leg and the watch takes over. GPS pace, distance, and auto-complete at the target.
Your hands never leave your sides and nothing needs tapping mid stride.
1:55 / 500m
Know your pace with nothing paired
Row, ski, bike. Swipe off the machine and your pace per 500m is computed instantly from the programmed distance.
No Bluetooth, no pairing, no cable, and it works on machines with no data feed at all.
Log a set without breaking rhythm
Set cards arrive pre-filled with last session's load. Same again is one tap. Went up is two clicks of the crown.
Every top set, rep range and RIR banked without a keyboard in sight.
Set up in seconds. Know what it meant.
1 · Start
Today's session is already parsed and waiting. Tap where you are starting and send it to the watch. Under ten seconds, phone back in the locker.
2 · Analyse
Every station broken out with its heart rate profile. Tag your effort in a tap, and the read explains what the numbers actually mean, not just what they were.
3 · Compound
Every movement gets a benchmark: pace at a fixed effort, loads, PBs, trended over months. This session against your last, and against your best, on every exercise you have ever done.
Your data outlives your gym membership.
Zonesplit measures inside the session, which is the one thing nothing else does. Then it hands the numbers over. Every session you record is yours to take out, in full, whenever you want, and it keeps working after you change gyms, change apps, or stop paying us.
- Apple Health
- A full plain-text export, any time
Written for pasting straight into whatever you already use to think about your training.
Your setup decides what gets built first.
Apple Watch is in testing now. Everything after it, Garmin and Wear OS and Android, gets built in the order this list demands it. Tell us what you train with and you are voting with your wrist.
Your platform, prioritised
Every signup is a vote. The combinations that stack up fastest are the ones we build next.
On the floor before anyone
Early access lands by invite, in order. Sign up early, train on it early, and shape the build while it is still soft.
First 100 get 50 free workouts
The first 100 on the list get their first 50 tracked sessions free, plus a direct line to the person building it.
NO SPAM, EVER. ONE EMAIL WHEN YOUR SETUP IS READY, PLUS PREP SESSIONS ONLY IF YOU PICKED A COMPETITION. PRIVACY
You're in.
Apple Watch is first. You'll hear from us at TestFlight.
One email when your setup is ready. If you picked a competition, the occasional prep session too. Nothing else.