# OnlyStrength vs Gym Boss

The clearest difference is review sentiment: Gym Boss at 100% against OnlyStrength's 83%. Gym Boss also leads on rating (5.0 vs 4.8) and update cadence (every 3 days vs weekly). OnlyStrength's advantage is ratings volume (27 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. OnlyStrength sells 2 in-app purchases, starting at $34.99 per month and Gym Boss sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Gym Boss holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: OnlyStrength has 27 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of OnlyStrength's written reviews are positive against 100% of Gym Boss's.

OnlyStrength ships an update weekly, Gym Boss every 3 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OnlyStrength | Gym Boss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (27 ratings)](https://appshunter.io/ios/app/onlystrength/id6473848495/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/gym-boss-workout-notes/id6795766855/reviews)** |
| Number of ratings | **27** | 4 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 76 MB | 70 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Challenger Training Systems Inc](https://appshunter.io/developer/1720025952) | [Maddox Borden](https://appshunter.io/developer/6795766857) |

## What reviewers say

### OnlyStrength

[App page](https://appshunter.io/ios/app/onlystrength/id6473848495)

This app offers comprehensive strength training and athletic performance programs designed by expert coaches. It provides guided workouts with detailed exercise instructions, progress tracking, and automatic weight calculations to help athletes improve speed, strength, and explosiveness.

**Highlights:** Progressed and guided programming, Detailed exercise instructions with video demos, Automatic weight calculations, Workout history tracking, Metric tracking for sprint times and jump scores, In-app rest timer, Community for expert guidance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnlyStrength Premium Monthly | $34.99 | per month |
| OnlyStrength Premium Annual | $349.99 | per year |


### Gym Boss

[App page](https://appshunter.io/ios/app/gym-boss-workout-notes/id6795766855)

This app serves as a flexible training notebook to plan and track your workouts, including sets, cardio, nutrition, and progress. It offers an AI coach that learns from your training history to provide personalized recommendations and insights.

**Highlights:** Custom workout planning, Train Mode for execution, Track sets, cardio, nutrition, AI coach with workout context, Next-workout recommendations, Strength progress by muscle group, Food logging and barcode scanning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gym Boss: Premium | $5.99 | per month |
| Gym Boss: Premium Annually | $59.99 | per year |


## Frequently asked questions

### Is OnlyStrength free?

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

### Is Gym Boss free?

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

### Which has better reviews, OnlyStrength or Gym Boss?

Gym Boss is rated higher. OnlyStrength averages 4.8 out of 5 from 27 ratings, while Gym Boss averages 5.0 from 4 ratings.

### Do OnlyStrength or Gym Boss have ads?

Neither OnlyStrength nor Gym Boss shows ads.

### Which is updated more often, OnlyStrength or Gym Boss?

OnlyStrength ships an update weekly, and Gym Boss every 3 days. Most recently, OnlyStrength was updated on October 24, 2026 and Gym Boss on October 16, 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.*