# Sofia Coin vs Kaksi

The clearest difference is update cadence: Sofia Coin at every 9 days against Kaksi's monthly. Sofia Coin also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support 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, Kaksi monthly. The most recent releases landed on September 30, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Sofia Coin | Kaksi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free | — |
| Size | 33 MB | 64 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sofia Urban Mobility Centre](https://appshunter.io/developer/968648983) | [DZI Life Insurance EAD](https://appshunter.io/developer/1631786577) |

## 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


### Kaksi

[App page](https://appshunter.io/ios/app/kaksi/id1631786575)

**Features:** 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 Kaksi free?

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

### Do Sofia Coin or Kaksi have ads?

Neither Sofia Coin nor Kaksi shows ads.

### Which is updated more often, Sofia Coin or Kaksi?

Sofia Coin ships an update every 9 days, and Kaksi monthly. Most recently, Sofia Coin was updated on September 30, 2026 and Kaksi on September 10, 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.*