# London Underground Map Guide vs MRT Map

The clearest difference is in-app purchases: London Underground Map Guide at none against MRT Map's 4. London Underground Map Guide also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). MRT Map's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On price there is nothing between them.

Both are free to download. MRT Map sells 4 one-off in-app purchases. London Underground Map Guide asks for nothing beyond the download.

London Underground Map Guide ships an update every 3 months, MRT Map monthly. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | London Underground Map Guide | MRT Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Size | 75 MB | 10 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Grematech Communication](https://appshunter.io/developer/727046960) | [33 YAGA PTE. LTD.](https://appshunter.io/developer/1536277523) |

## What reviewers say

### London Underground Map Guide

[App page](https://appshunter.io/ios/app/london-underground-map-guide/id904308147)

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

**In-app purchases:** none


### MRT Map

[App page](https://appshunter.io/ios/app/mrt-map/id6479568532)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sponsor | $0.99 | one-time |
| Sponsor a bit of tidy sum | $2.99 | one-time |
| Sponsor a lot | $6.99 | one-time |
| Sponsor VIP | $12.99 | one-time |


## Frequently asked questions

### Is London Underground Map Guide free?

London Underground Map Guide is free to download, with no in-app purchases.

### Is MRT Map free?

MRT Map is free to download, with in-app purchases available.

### Do London Underground Map Guide or MRT Map have ads?

London Underground Map Guide shows ads; MRT Map does not.

### Which is updated more often, London Underground Map Guide or MRT Map?

London Underground Map Guide ships an update every 3 months, and MRT Map monthly. Most recently, London Underground Map Guide was updated on September 21, 2026 and MRT Map on September 11, 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.*