# Muscles vs Flexible Dieting Method

The clearest difference is in-app purchases: Flexible Dieting Method at none against Muscles's 1. Flexible Dieting Method also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Muscles sells 1 one-off in-app purchase. Flexible Dieting Method asks for nothing beyond the download.

Muscles ships an update fortnightly, Flexible Dieting Method every 3 weeks. The most recent releases landed on September 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Muscles | Flexible Dieting Method |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/muscles-workout-tracker/id6476836905/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 49 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nathan Armstrong](https://appshunter.io/developer/982863187) | [Delicious Deficit LLC](https://appshunter.io/developer/1784463670) |

## What reviewers say

### Muscles

[App page](https://appshunter.io/ios/app/muscles-workout-tracker/id6476836905)

This app offers a streamlined and intuitive way to log your exercise sessions. Easily track your progress with visual analytics and motivational graphs. Its beautiful interface makes fitness tracking enjoyable for all levels.

**Highlights:** Effortless workout logging, Customizable exercise tracking, Progress visualization with graphs, Insightful analytics and statistics, Beautiful and minimalist interface, Dashboard widgets for quick insights

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | one-time |


### Flexible Dieting Method

[App page](https://appshunter.io/ios/app/flexible-dieting-method/id6739252196)

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

**In-app purchases:** none


## Frequently asked questions

### Is Muscles free?

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

### Is Flexible Dieting Method free?

Flexible Dieting Method is free to download, with no in-app purchases.

### Do Muscles or Flexible Dieting Method have ads?

Neither Muscles nor Flexible Dieting Method shows ads.

### Which is updated more often, Muscles or Flexible Dieting Method?

Muscles ships an update fortnightly, and Flexible Dieting Method every 3 weeks. Most recently, Muscles was updated on September 24, 2026 and Flexible Dieting Method on October 4, 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.*