# Trinity General vs Muscles

The clearest difference is in-app purchases: Trinity General at none against Muscles's 1. Trinity General also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Muscles's advantage is update cadence (fortnightly vs every 2 months). On price and ads there is nothing between them.

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

Trinity General ships an update every 2 months, Muscles fortnightly. The most recent releases landed on September 16, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Trinity General | Muscles |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 113 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Trinity General LLC](https://appshunter.io/developer/1762681227) | [Nathan Armstrong](https://appshunter.io/developer/982863187) |

## What reviewers say

### Trinity General

[App page](https://appshunter.io/ios/app/trinity-general/id6444574994)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Trinity General free?

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

### Is Muscles free?

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

### Do Trinity General or Muscles have ads?

Neither Trinity General nor Muscles shows ads.

### Which is updated more often, Trinity General or Muscles?

Trinity General ships an update every 2 months, and Muscles fortnightly. Most recently, Trinity General was updated on September 16, 2026 and Muscles on June 1, 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.*