# Sonar Fit vs Unlock Earth

The clearest difference is in-app purchases: Unlock Earth at none against Sonar Fit's 2. Unlock Earth also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.1 vs 17.6). On price, 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. Unlock Earth asks for nothing beyond the download.

Sonar Fit ships an update every 2 weeks, Unlock Earth every 5 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sonar Fit | Unlock Earth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/unlock-earth/id6799680337/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 11 MB | 33 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Floxx Labs](https://appshunter.io/developer/1767788796) | [Eirik Enger Karlsen](https://appshunter.io/developer/6799680339) |

## 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 |


### Unlock Earth

[App page](https://appshunter.io/ios/app/unlock-earth/id6799680337)

This app uses your GPS activities to permanently unlock real-world places you've traveled through. Connect your Strava account to automatically track runs, rides, and hikes against official municipality boundaries. Earn achievements and claim World Firsts as you build a personal collection of unlocked locations.

**Highlights:** Connect Strava account, Automatic GPS activity tracking, Unlock real municipality boundaries, Permanent collection of unlocked places, Dozens of achievements, World First claims

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

**In-app purchases:** none


## Frequently asked questions

### Is Sonar Fit free?

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

### Is Unlock Earth free?

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

### Do Sonar Fit or Unlock Earth have ads?

Neither Sonar Fit nor Unlock Earth shows ads.

### Which is updated more often, Sonar Fit or Unlock Earth?

Sonar Fit ships an update every 2 weeks, and Unlock Earth every 5 days. Most recently, Sonar Fit was updated on October 28, 2026 and Unlock Earth on October 24, 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.*