# Sofia Subway Map vs 80trillionKM

The clearest difference is in-app purchases: Sofia Subway Map at none against 80trillionKM's 1. Sofia Subway Map also leads on iOS requirement (16.0 vs 18.0). 80trillionKM's advantage is update cadence (every 5 weeks vs every 32 months). On price, ads and device support there is nothing between them.

Both are free to download. 80trillionKM sells 1 in-app purchase, starting at $9.99 per month. Sofia Subway Map asks for nothing beyond the download.

Sofia Subway Map ships an update every 32 months, 80trillionKM every 5 weeks. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Sofia Subway Map | 80trillionKM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 5 weeks** |
| Size | 32 MB | 33 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Yaroslav Mykolaienko](https://appshunter.io/developer/1711921558) | [IVAYLO ZHELYAZKOV](https://appshunter.io/developer/1768743287) |

## 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


### 80trillionKM

[App page](https://appshunter.io/ios/app/80trillionkm/id6689517836)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Access | $9.99 | per month |


## Frequently asked questions

### Is Sofia Subway Map free?

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

### Is 80trillionKM free?

80trillionKM is free to download, with in-app purchases available.

### Do Sofia Subway Map or 80trillionKM have ads?

Neither Sofia Subway Map nor 80trillionKM shows ads.

### Which is updated more often, Sofia Subway Map or 80trillionKM?

Sofia Subway Map ships an update every 32 months, and 80trillionKM every 5 weeks. Most recently, Sofia Subway Map was updated on November 8, 2026 and 80trillionKM on November 12, 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.*