Grip Strength: MrGripper is an iPhone app built only for grip: dynamometer grip tests with a left–right symmetry score, per-hand set logging, and personal records per exercise, equipment, load, and hand — clear numbers, not guesswork.
Built for gripper training, climbing, grappling, calisthenics, heavy pulls, and rehab — anyone who wants hand strength they can measure.
Free to download · Optional Pro subscription · No special hardware required
Inside the app
A grip tracker that looks like it means it
Native iOS design, bold numbers, and screens built around one job: making your grip training measurable.
Today at a glance: volume, holds, consistency, and hand symmetryLog every set — left and right hand, separately or togetherGrip tests with per-hand readings and a symmetry scoreBuilt-in timer for dead hangs, pinch holds, and static workPRs that match how you train: per exercise, equipment, load, and hand
Why MrGripper
Grip-specific depth no generic logger matches
Any workout app can count reps. MrGripper answers the questions grip training actually raises — is the weaker hand catching up, is your tested strength moving, and which gripper, board, or load did you really beat — whether you train for grip sport, climbing, grappling, lifting, or rehab.
⚖️
A symmetry score, not one total
Sets and grip tests are logged per hand, so the dashboard can score left–right balance. Generic logs merge both hands into one number and hide imbalances until they hurt.
📏
A real dynamometer test flow
A dedicated grip test measures left, right, or both hands and turns readings into clear summaries — with any dynamometer you own, not a proprietary Bluetooth gadget.
🏆
PRs the way grip actually works
Closing a harder gripper is a different record than more reps on an easier one. PRs are tracked per exercise, equipment, load, and hand — so a new best means something.
How it works
From first set to visible progress
Pick your gear and goals
Onboarding seeds your equipment types and exercise library from what you actually train with — grippers, hangboards, rings, bands, or pinch gear.
Train and log in seconds
Save workout programs with target sets, reps or hold time, and rest. Tap a template, train, and log each hand in a few taps.
Test your grip
Run dynamometer grip tests for the left, right, or both hands and get summaries with a symmetry score.
Watch the trend, not one session
Weekly insights track consistency, hold time, and load volume separately, and PRs update per exercise, equipment, load, and hand.
Get the app
Start logging your grip training today
The free version covers real training: unlimited workouts and custom exercises, per-hand tracking, dynamometer tests, weekly insights, and three routines. Pro ($4.99/month or $29.99/year) adds per-equipment PRs, full history, unlimited routines, and CSV export — when you want it, not before. See the full free vs Pro breakdown.
Requires iOS 18.0 or later. Also runs on iPad, Apple Silicon Macs, and Apple Vision Pro. 38.6 MB download.
Who it's for
Purpose-built for hand and grip work
Not a generic gym log with "grip" bolted on. Every screen assumes your training happens at the hands.
🤜
Gripper & grip sport training
Track closes and rep bests for each rated gripper in your gear library. Per-equipment and per-load PRs show exactly which spring you beat, and when.
🧗
Climbers & boulderers
Log hangboard sessions, pinch work, and max hangs with the built-in timer. Per-hand records make contact-strength gaps visible before they become injuries.
🥋
BJJ & martial artists
Grip decides grips. Train crush and hold endurance, log timed holds, and watch left–right balance so your weak-side grips catch up.
🤸
Calisthenics athletes
Dead hangs, bar holds, and support work in one flow — max reps and max-duration holds both count, and both get tracked.
🏋️
Lifters with stalling pulls
When deadlifts and carries fail at the hands, train grip like a lift: programmed sets, logged loads, and volume trends you can act on.
🤕
Rehab & return to training
Record dynamometer readings per hand and watch the symmetry score close the gap — steady, measurable progress you can share with your physio.
Training guides
Learn the training, then track it
Practical, no-fluff guides on testing and building grip strength — written to answer the question first and mention the app second.
Yes. The free version includes unlimited workouts and custom exercises, up to 5 pieces of equipment, full per-hand tracking, dynamometer grip tests, guided workouts, weekly insights, a 30-day history window, and three routines.
An optional Pro subscription ($4.99/month or $29.99/year — the monthly plan starts with 3 days free) adds per-equipment and per-load PRs, equipment photos, 90-day insights with full history, unlimited routines, and CSV export. See what Pro adds and when to upgrade.
Do I need a Bluetooth dynamometer or other special hardware?
No. Unlike trackers tied to a proprietary device, MrGripper works with whatever you already own — grippers, hangboards, rings, bands, pinch gear, or custom tools. Grip-test readings from any dynamometer are recorded by entering the number. See how it compares in our guide to the best grip strength app without a Bluetooth dynamometer.
How is MrGripper different from a generic workout tracker?
General-purpose trackers treat grip as one more exercise slot. MrGripper is built only for hand and grip work: a dedicated dynamometer grip-test flow, per-hand logging with a left–right symmetry score, personal records per exercise, equipment, load, and hand, and exercises for grip sport, climbing, grappling, calisthenics, lifting, and rehab.
If grip is what you're training, that depth is what makes the numbers actionable.
Can I track my left and right hand separately?
Yes. Every set can be logged per hand or both together, grip tests record left, right, or both, and a symmetry view shows the balance between hands. Learn more about fixing a weaker hand.
Which devices does MrGripper run on?
iPhone and iPad (iOS/iPadOS 18.0 or later), Mac (macOS 15.0 or later on Apple Silicon), and Apple Vision Pro (visionOS 2.0 or later). The interface is available in English, German, Russian, and Spanish.
Does the app work offline?
Yes. MrGripper is offline-first: log workouts and review your training data anywhere, no connection required.
What data does MrGripper collect?
The App Store privacy label lists only Usage Data and Diagnostics, collected in a way that is not linked to your identity. Details are in the privacy policy.
How do I test my grip strength at home?
Use a hand dynamometer for a measured reading, or practical proxy tests like a max dead hang or a rated gripper close. Test each hand separately and repeat under the same conditions so results stay comparable. Learn more in the testing guide.
Your grip is trainable. Prove it with data.
If you train with grippers, hang from boards, pull heavy, or grip-fight for a living, MrGripper turns that work into numbers you can watch improve — starting with your first logged set.
MrGripper
