# Sonar Fit vs Rest Timer

Sonar Fit and Rest Timer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Sonar Fit sells 2 in-app purchases, starting at $3.99 per month and Rest Timer sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sonar Fit ships an update every 2 weeks, Rest Timer monthly. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sonar Fit | Rest Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 11 MB | 16 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Floxx Labs](https://appshunter.io/developer/1767788796) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### 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 |


### Rest Timer

[App page](https://appshunter.io/ios/app/rest-timer-gym-workout-sets/id6772274926)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Trainer: Weekly | $2.99 | per 7 days |
| Lifting Log: Yearly | $14.99 | per year |
| Strength Training: Pay Once | $29.99 | one-time |


## Frequently asked questions

### Is Sonar Fit free?

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

### Is Rest Timer free?

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

### Do Sonar Fit or Rest Timer have ads?

Neither Sonar Fit nor Rest Timer shows ads.

### Which is updated more often, Sonar Fit or Rest Timer?

Sonar Fit ships an update every 2 weeks, and Rest Timer monthly. Most recently, Sonar Fit was updated on October 18, 2026 and Rest Timer on October 19, 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.*