# Sofia Subway Map vs Kameri BG

The clearest difference is update cadence: Kameri BG at fortnightly against Sofia Subway Map's every 32 months. 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 Subway Map ships an update every 32 months, Kameri BG fortnightly. Both last shipped on November 8, 2026.

## The numbers

| Metric | Sofia Subway Map | Kameri BG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Fortnightly** |
| Size | 32 MB | 1 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yaroslav Mykolaienko](https://appshunter.io/developer/1711921558) | [Nikolay Riskov](https://appshunter.io/developer/1545597289) |

## What reviewers say

### Sofia Subway Map

[App page](https://appshunter.io/ios/app/sofia-subway-map/id6478927854)

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

**In-app purchases:** none


### Kameri BG

[App page](https://appshunter.io/ios/app/kameri-bg/id6751439569)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sofia Subway Map free?

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

### Is Kameri BG free?

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

### Do Sofia Subway Map or Kameri BG have ads?

Neither Sofia Subway Map nor Kameri BG shows ads.

### Which is updated more often, Sofia Subway Map or Kameri BG?

Sofia Subway Map ships an update every 32 months, and Kameri BG fortnightly. Most recently, Sofia Subway Map was updated on November 8, 2026 and Kameri BG on November 8, 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.*