# MUSCLER vs FitBoost

The clearest difference is update cadence: FitBoost at every 2 days against MUSCLER's every 4 days. FitBoost also leads on device support (4 vs 2). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. MUSCLER sells 2 in-app purchases, starting at $1.99 per month and FitBoost sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

MUSCLER ships an update every 4 days, FitBoost every 2 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | MUSCLER | FitBoost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fitboost-workout-log/id6805938033/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 135 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [YEAWON BONG](https://appshunter.io/developer/6787392487) | [Taein Kim](https://appshunter.io/developer/1256839730) |

## What reviewers say

### MUSCLER

[App page](https://appshunter.io/ios/app/muscler/id6787392485)

Log your workouts, build a personal fitness archive, and share your progress with friends. Participate in challenges and stay motivated by tracking your consistency and growth over time.

**Highlights:** Personal workout archive, Log daily workouts with photos, Monthly workout activity view, Share progress with community, Follow friends' journeys, Join fitness challenges

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MUSCLER Plus Monthly | $1.99 | per month |
| MUSCLER Plus Annual | $11.99 | per year |


### FitBoost

[App page](https://appshunter.io/ios/app/fitboost-workout-log/id6805938033)

This app acts as a personal trainer, automatically adjusting your next set's weight and rest times based on your performance and effort. It integrates with smartwatches and offers detailed movement assessments, strength balance analysis, and customizable workout sharing.

**Highlights:** Automatic weight and rest adjustment, Smartwatch integration (Apple Watch, Garmin), Strength and running tracking, Camera-based movement assessment, Customizable workout sharing, Muscle recovery map and pain logging, Strength balance analysis

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitBoost PRO Monthly | $2.99 | per month |
| FitBoost PRO+ Monthly | $5.99 | per month |
| FitBoost PRO Annual | $22.99 | per year |
| FitBoost PRO+ Annual | $39.99 | per year |


## Frequently asked questions

### Is MUSCLER free?

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

### Is FitBoost free?

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

### Do MUSCLER or FitBoost have ads?

Both MUSCLER and FitBoost show ads.

### Which is updated more often, MUSCLER or FitBoost?

MUSCLER ships an update every 4 days, and FitBoost every 2 days. Most recently, MUSCLER was updated on November 8, 2026 and FitBoost on November 6, 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.*