# Body Tracker vs MuscleFlip

The clearest difference is in-app purchases: MuscleFlip at none against Body Tracker's 3. Body Tracker's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Body Tracker sells 3 in-app purchases, starting at $4.99 per month. MuscleFlip asks for nothing beyond the download.

Body Tracker ships an update every 6 days, MuscleFlip every 3 weeks. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Body Tracker | MuscleFlip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (40 ratings)](https://appshunter.io/ios/app/body-tracker-progress-pics/id6758867697/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 146 MB | 9 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thumbstone Labs](https://appshunter.io/developer/1875407673) | [Kiichi Takazakura](https://appshunter.io/developer/1896767004) |

## What reviewers say

### Body Tracker

[App page](https://appshunter.io/ios/app/body-tracker-progress-pics/id6758867697)

Easily track your fitness journey with progress photos. Organize images by angle, compare before and after shots, and create timelapse videos of your transformation. Your photos remain private on your device.

**Highlights:** Progress photo timeline, Before & after comparison, Timelapse video export, Organize by angle, In-app camera with timer, Private, on-device storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $9.99 | per year |
| Pro Yearly | $29.99 | per year |


### MuscleFlip

[App page](https://appshunter.io/ios/app/muscleflip/id6770926014)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Body Tracker free?

Body Tracker is free to download, with in-app purchases available.

### Is MuscleFlip free?

MuscleFlip is free to download, with no in-app purchases.

### Do Body Tracker or MuscleFlip have ads?

Neither Body Tracker nor MuscleFlip shows ads.

### Which is updated more often, Body Tracker or MuscleFlip?

Body Tracker ships an update every 6 days, and MuscleFlip every 3 weeks. Most recently, Body Tracker was updated on September 21, 2026 and MuscleFlip on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*