New personal record
Bench press · 102.0 kg e1RM
90 kg × 4, up +2.8 kg on your previous best. Called out the moment you finish, with one gold flash and nothing else.

The workout tracker for iPhone
Gryper tells you, muscle by muscle. Log every set in one tap and watch your week build on a living muscle map, graded against the volume each muscle needs to grow.
Free on iPhone · No account needed to start · Android beta →

01Log
One tap per set. Last session’s weight and reps sit right beside today’s, so you know what to beat before you unrack. The rest timer starts on its own.

0/4 sets
Resting
2:00
Started on its own.
No signal
3 sets saved on your phone
Flip airplane mode to try it.
02Offline
Basement gym, dead zone, airplane mode. Every set saves on your phone and syncs the moment you’re back online. Nothing waits on a spinner.
03See
Every set lights the muscles it trained. Over the week, each one is graded against its volume landmarks: MEV, the minimum that drives growth; MAV, where most lifters grow best; and MRV, the most you can recover from.
Push day · 0 sets
04Know
Each session is graded against your last eight. Every lift tracks its estimated one-rep max. Records get the gold.
New personal record
90 kg × 4, up +2.8 kg on your previous best. Called out the moment you finish, with one gold flash and nothing else.
Session grade
Today’s session volume was 7840 kg, 17% above the average of the previous eight sessions.
Strength trend
Estimated one-rep max (Epley). Gold marks your best.
05Repeat
Push, pull, legs, or whatever you run. The next session is ready before you walk in.
5 exercises · ~55 min
6 exercises · ~60 min
5 exercises · ~65 min
Filter by equipment or target muscle. Add your own and it lands on the map the same way.
06Inside the app





07Yours
Take your history anywhere, any time. Switching from another app? Bring it with you.
Every set of every session, one row each. Open it anywhere.
Your complete history in one file, for safekeeping.
Bring your past workouts with you from a Hevy CSV export.
08AndroidClosed test open
Gryper is on iPhone today. Android is in closed testing, and Google needs real lifters training with it for two weeks before it can launch.
The first 20 testers get Gryper Pro free for 12 months when it launches, if they stay opted in for the full two weeks. Pro isn’t out yet; the year is added to your account at launch.

09Questions
Gryper is an iPhone workout tracker for lifters. You log every set in one tap; Gryper maps each set onto an anatomical muscle heatmap and grades your weekly volume for every muscle against MEV, MAV and MRV, so you can see whether you trained enough, hit the productive range, or pushed too far.
Every set you log counts toward the muscles that exercise works. Gryper adds those sets up per muscle for the week and compares the total with three volume landmarks: MEV (minimum effective volume), MAV (maximum adaptive volume) and MRV (maximum recoverable volume). Below MEV means that muscle probably didn’t get enough work; between MEV and MAV is the productive range; past MRV is more than most lifters can recover from. The landmarks are research-based starting points, not guarantees, and the map shows the result at a glance.
They are weekly set ranges per muscle. MEV is the fewest hard sets that still produce growth. MAV is the range where most lifters grow best. MRV is the most you can do and still recover. Gryper uses published defaults for each of its 36 muscle groups.
Each exercise in the library is mapped to the muscles it trains. When you log a set, those muscles light up on a front and back body map: after a session it shows what you worked that day, and across the week it colours each muscle by where its volume sits against MEV, MAV and MRV.
Yes. You can log a whole workout with no signal. Sets are stored on the phone and sync to your account when you are back online.
Gryper is free to download on the App Store, and you can start logging without creating an account.
Gryper is on iPhone today (iOS 16.4 or later). The Android version is in closed testing, and you can sign up to test it at gryper.fit/android. The first 20 testers who stay opted in for the full two-week test get Gryper Pro free for 12 months when it launches.
Yes. You can export your full history as a spreadsheet CSV or a JSON archive, and you can import a CSV exported from Hevy to bring your past workouts into Gryper.
Gryper is built for lifters who want fast logging and a muscle-level answer to “was that enough?”. On top of sets, reps and records, it maps every set onto a muscle heatmap and grades each muscle’s weekly volume against MEV, MAV and MRV.

Your next session
Free on iPhone. Log your first set in seconds, no account needed.