# MuscleFlip — Muscle Growth Timelapse Diary

> Muscle Growth Timelapse Diary (iPhone/iPad app by Kiichi Takazakura.)

- Source: https://appshunter.io/ios/app/muscleflip/id6770926014 (this page in markdown: same URL + `.md`)
- Developer: [Kiichi Takazakura](https://appshunter.io/developer/1896767004)
- Category: Health & Fitness, Photo & Video
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 9 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-06-21
- Data updated: 2026-09-05
- User reviews in markdown: https://appshunter.io/ios/app/muscleflip/id6770926014/reviews.md

## What is MuscleFlip?

Track proof of your progress and outgrow yesterday's self with powerful visual feedback.

"I've been training hard every day, but is my body really changing?"
"I want to see the results of my weight loss or bulk-up more clearly!"

MuscleFlip is a fitness tracking app developed for all gym-goers, lifters, and dieters to dramatically visualize their bodily evolution.

No tedious account registration, no forced social media integration. Snap a quick photo in the gym locker room or in front of your home mirror. Focus entirely on your body's transformation in a completely secure, private space.

◆ 2 Core Features of MuscleFlip
1. Custom "Comparison Images" with Millimeter-Perfect Adjustments
It does more than just place past and present photos side by side. You can intuitively resize (pinch-in/out) and move (drag) photos to freely adjust the layout, ratio, and positioning. Even if the camera angles or distances differ, you can align them perfectly to accurately compare and analyze muscle growth or waist trimming.

2. "Time-Lapse Video Generation" to Connect Your Evolutionary Journey
Convert your accumulated daily progress photos into a single timeline video (flipbook-style video) with just one tap. You can always look back at the motivating process of your body leaning out and your muscles growing bigger in one smooth video.

◆ 3 Features You’ll Love
No Login Required, Start Instantly: Start capturing and tracking your progress the moment you open the app.

100% Private & Secure: Your data is securely stored locally on your device. There is no forced sharing to social media.

Streamlined, Simple UI: By stripping away unnecessary clutter, the app focuses solely on "tracking" and "comparing" your physique, seamlessly fitting into your daily routine.

◆ Recommended For:
Anyone fully committed to weight training, bodybuilding, dieting, cutting, or bulking.

Those who want an honest, accurate comparison between their past and present selves.

Anyone looking to stock visual proof (before & after photos) to stay motivated.

People who want to keep a private progress journal without worrying about others' eyes.

Minor changes that are hard to notice just by looking in the mirror become undeniable proof of growth with MuscleFlip. Download now and take your fitness journey to the next stage!

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://takazakura.github.io/MuscleLog/privacy-policy.html


## Version history (last 4 releases)

### 1.2.0 — 2026-08-28

Time-lapse videos, on your terms.

- Adjust playback speed from 1 to 30 fps (fps and approximate length are shown)
- Hide faces with a mosaic or an emoji - processed entirely on your device
- Auto-align the subject's position and size so changes are easier to see
- The 49-photo limit on time-lapse videos has been removed
- The calendar now shows each day's photo in the date cell (switchable to mood icons)
- You can now save a record on days without a body photo
- New workout fields: muscles trained, duration, intensity, calories, supplements
- Greatly expanded English, Spanish, Korean, and Chinese translations

### 1.1.1 — 2026-07-22

- Updated App Store screenshots
- Minor improvements and bug fixes

### 1.1.0 — 2026-07-13

Added iCloud sync. Your workout records and photos now follow you across devices signed in with the same Apple ID, and are restored after reinstalling the app.
- Records and photos sync automatically via iCloud
- Entries made on multiple devices for the same day merge without losing photos
- Sync status is now shown in Settings

### 1.0 — 2026-06-21

No release notes.

## Apps similar to MuscleFlip

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Iron Fuel - Calorie Tracker](https://appshunter.io/ios/app/iron-fuel-calorie-tracker/id6770709149) | — | Free | Health & Fitness |
| [Interval Timer: BeepWatch](https://appshunter.io/ios/app/interval-timer-beepwatch/id1048461382) | 4.8 (161) | Free | Health & Fitness |
| [FiTin - Workout Tracker](https://appshunter.io/ios/app/fitin-workout-tracker/id6747509583) | — | Free | Health & Fitness |
| [Body Tracker - Progress Pic](https://appshunter.io/ios/app/body-tracker-progress-pic/id6758867697) | 4.6 (35) | Free | Health & Fitness |
| [Weighback](https://appshunter.io/ios/app/weighback/id6773008122) | 5.0 (1) | Free | Health & Fitness |
| [FormLapse](https://appshunter.io/ios/app/formlapse/id6780141102) | — | Free | Health & Fitness |

## More apps by Kiichi Takazakura

- [DrawWake: Alarm Clock & Timer](https://appshunter.io/ios/app/drawwake-alarm-clock-and-timer/id6792154779)

All apps by Kiichi Takazakura: https://appshunter.io/developer/1896767004

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*