# Gryper: full product facts Source: https://gryper.fit · Last reviewed: 2026-10-04 ## Summary 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. - Platform: iPhone (iOS 16.4 or later) - Price: Free to download; no account needed to start logging - Android: Android is in closed testing; testers can sign up at https://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. - Category: Health & Fitness - Download: https://apps.apple.com/us/app/gryper/id6784166748 - Who it is for: lifters who train with a structure (a split or routine) and want to know, per muscle, whether their weekly training volume is enough, not just a log of weight and reps. ## Features ### One-tap set logging Log each set with one tap. Last session’s weight and reps sit beside today’s, and the rest timer starts on its own. ### Offline-first Works with no signal. Sets are saved on the phone and sync when you are back online. ### Muscle heatmap A front and back anatomical body map with 36 muscle groups shows what each session trained and how your week is building. ### Weekly volume vs MEV / MAV / MRV Weekly hard sets per muscle are graded against volume landmarks: below MEV (not enough), productive, high, or past MRV (more than you can recover from). ### Session grading and records Every workout is compared with your last eight. Gryper tracks estimated one-rep max (e1RM, Epley formula) per lift and calls out personal records the moment you finish. ### Routines Build a push, pull, legs or any split once and start each session with one tap. ### 170+ exercises An exercise library filterable by equipment and muscle. Custom exercises are mapped to muscles the same way. ### Your data is yours Export your full history as a spreadsheet CSV or a JSON archive, and import a Hevy CSV export to bring your history with you. ### No account needed to start Start logging straight away; create an account when you want sync and backup. ## How the volume grading works Gryper counts the hard sets each muscle received this week from every exercise mapped to it, then compares the total with three landmarks for that muscle: - MEV (minimum effective volume): the fewest weekly sets that still drive growth. Below MEV, Gryper shows the muscle as not trained enough. - MAV (maximum adaptive volume): the top of the productive range where most lifters grow best. - MRV (maximum recoverable volume): the most weekly sets most lifters can recover from. Past MRV, Gryper flags the muscle. The landmarks are research-based defaults for each of 36 muscle groups. They are guides, not guarantees. The body map colours each muscle by its band: below MEV, productive (MEV to MAV), high (MAV to MRV), past MRV. ## Frequently asked questions ### What is Gryper? 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. ### How does Gryper tell me if I trained enough? 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. ### What do MEV, MAV and MRV mean? 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. ### How does the muscle heatmap work? 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. ### Does Gryper work offline? 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. ### Is Gryper free? Gryper is free to download on the App Store, and you can start logging without creating an account. ### Is Gryper on Android? 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. ### Can I export my workouts or move from Hevy? 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. ### How is Gryper different from other workout loggers like Strong or Hevy? 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. ## Contact Support: support@gryper.fit · https://gryper.fit/support