# GymBarsPRO vs Sonar Fit

The clearest difference is in-app purchases: GymBarsPRO at none against Sonar Fit's 2. GymBarsPRO also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sonar Fit sells 2 in-app purchases, starting at $3.99 per month. GymBarsPRO asks for nothing beyond the download.

GymBarsPRO ships an update every 3 weeks, Sonar Fit every 2 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | GymBarsPRO | Sonar Fit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 33 MB | 11 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Robus Athletic OÜ](https://appshunter.io/developer/1660572428) | [Floxx Labs](https://appshunter.io/developer/1767788796) |

## What reviewers say

### GymBarsPRO

[App page](https://appshunter.io/ios/app/gymbarspro/id6738579930)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sonar Fit

[App page](https://appshunter.io/ios/app/sonar-fit/id6740939129)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $3.99 | per month |
| Unlimited access | $29.99 | per year |


## Frequently asked questions

### Is GymBarsPRO free?

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

### Is Sonar Fit free?

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

### Do GymBarsPRO or Sonar Fit have ads?

Neither GymBarsPRO nor Sonar Fit shows ads.

### Which is updated more often, GymBarsPRO or Sonar Fit?

GymBarsPRO ships an update every 3 weeks, and Sonar Fit every 2 weeks. Most recently, GymBarsPRO was updated on October 27, 2026 and Sonar Fit on October 28, 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.*