MassBuilder
Gym log & form checker
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Build muscle with a plan that adds weight when you're ready, a form check that follows every rep, and an alarm you stop with push-ups. On iPad too.
Build muscle one set at a time. Log every set with one tap, and MassBuilder plans your next weight, so the bar gets heavier when you're ready. Check your form with the camera. Set an alarm you can only stop by moving. Watch a year of training turn into charts. And let four judges have opinions about your leg day.
DAILY CHALLENGE
- An alarm that rings like your Clock alarm and comes back every two minutes until you've done the reps: push-ups, squats, burpees or pull-ups.
- The camera counts in real time and knows which way is down: push-ups against a wall don't count.
- Pick how strict it judges, from Gentle to Very strict.
- Want out? Hold Give up for five seconds. It costs a missed day, or an amount you pick in advance if you want more at stake. Ill or injured? Pause mode turns it off.
FORM CHECK
- Stand your phone on the floor, side-on, and lift. The camera follows your joints and counts every rep, in eight lifts from squats and deadlifts to pull-ups.
- After the set, each rep plays back next to the right movement for your build, with up to three things to work on.
- A voice calls out each rep and a cue. If the camera can't see your knees, it says so instead of guessing.
- See how your form changes, lift by lift.
ONE TAP PER SET
- Your workout is a punch card. Tap a hole and the set is logged with reps, weight and time. Tap again if you got fewer reps.
- The rest timer starts by itself, on the Lock Screen and in the Dynamic Island too.
- Warm-up sets, a plate calculator for your gym's bar and plates, and your next weight planned for you: more when you hit your reps, a deload after three misses.
- Log reps in the tank and notes for next time, if you want.
YOUR YEAR IN CHARTS
- Today is a board you arrange yourself: top sets, effort, records, tonnage in elephants and blue whales, the muscles you trained, rep maxes and your year as punched holes.
- Every lift has its own chart, with your best set and estimated 1RM.
- Rate how hard each workout felt and see your load week by week. With Apple Watch, your heart rate too.
FUEL
- Count protein, carbs and fat in grams, with daily targets from your goal weight and pace.
- Your weight trend, and how much you burn, learned from what you eat and weigh.
APPLE WATCH
- Log sets from your wrist: punch, rest, change the weight with the crown and see your heart rate.
- Fuel on your wrist, with complications.
IPAD AND APPLE TV
- Your iPad runs workouts, Fuel, the daily challenge and the form check, in sync with your iPhone, and spreads the board out in columns.
- On Apple TV, your charts fill the room: pick a period, open any card, move the cards with the remote.
THE BENCH
- Four judges react to how you train. The chicken guards leg day, the disco builder lives for a press, the T-rex jokes about his arms and the sloth notices when nothing happens.
- Pick a tone: Kind, Honest or Brutal. Every Monday they hand down a verdict on your week.
- They judge what you do, never how you look.
218 EXERCISES IN 3D
- Every exercise is an animated figure you can turn with a finger, with the working muscles hatched and four cues.
PROGRAMS
- Fifteen programs ready to go, from 5×5 to bodyweight at home. Answer six questions and MassBuilder finds the one that fits your days, time and gym.
- Or build your own, with rep ranges and your own weight steps.
PLAY
- Two games for the rest between sets, Run and Load. Both stop when your rest does.
YOURS
- No account. Your log lives on your devices and in your own private iCloud, which keeps your iPhone, iPad and Apple TV in sync.
- The video from the camera is never saved.
- Save workouts, effort and macros to Apple Health.
- Bring your log from another app with a CSV file, and export everything as CSV and JSON.
- Share a workout or a new best as a ticket. Widgets for the Home Screen and the Lock Screen.
No ads and no tracking. The only in-app purchase is optional: the amount you pick yourself for giving up a daily challenge.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
- Form check: the camera follows your lifts side-on, counts every rep and shows what to work on, rep by rep.
- Daily challenge: an alarm you stop with push-ups, squats, burpees or pull-ups, counted by the camera.
- Fuel: protein, carbs and fat in grams, your weight trend and what you burn.
- Apple Watch: log sets, rest and weight from your wrist, with your heart rate.
- Effort: rate how hard each workout felt, see your load week by week and save it to Apple Health.
- iPad: workouts, Fuel, the daily challenge and the form check, in sync with your iPhone, and the board in columns. Apple TV: your charts on the big screen.
- 218 exercises in 3D, and six questions that find your program among 360.
- Reps in the tank, notes, and tickets to share a workout or a new best.
The developer, Oskar Ege, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Oskar Ege
- Size
- 20.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Give up today £14.99
- Give up today £7.99
- Give up today £3.99
- Give up today £1.99
- Copyright
- © 2026 Oskar Ege