# Sofia Coin vs Only Trained

The clearest difference is iOS requirement: Sofia Coin at 13.0 against Only Trained's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sofia Coin ships an update every 9 days, Only Trained every 5 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sofia Coin | Only Trained |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 33 MB | 36 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Sofia Urban Mobility Centre](https://appshunter.io/developer/968648983) | [AvtoIkonom Ltd.](https://appshunter.io/developer/1287002091) |

## What reviewers say

### Sofia Coin

[App page](https://appshunter.io/ios/app/sofia-coin/id1596639441)

Earn virtual currency by choosing sustainable transportation in Sofia, like walking, cycling, or using scooters. This initiative contributes to cleaner air and supports the development of pedestrian and bike paths within the city.

**Highlights:** Earn virtual currency, Sustainable transportation rewards, Promotes cleaner air, Supports urban mobility infrastructure, Track walking, cycling, and scooter use

**Features:** macOS Compatibility

**In-app purchases:** none


### Only Trained

[App page](https://appshunter.io/ios/app/only-trained/id6776362651)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sofia Coin free?

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

### Is Only Trained free?

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

### Do Sofia Coin or Only Trained have ads?

Neither Sofia Coin nor Only Trained shows ads.

### Which is updated more often, Sofia Coin or Only Trained?

Sofia Coin ships an update every 9 days, and Only Trained every 5 days. Most recently, Sofia Coin was updated on October 13, 2026 and Only Trained 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.*