# Tokyo Subway 3D Map vs LCM GCD Prime Factor Math

The clearest difference is price: Tokyo Subway 3D Map at Free against LCM GCD Prime Factor Math's $0.99. LCM GCD Prime Factor Math's advantage is update cadence (every 18 months vs every 58 months) and iOS requirement (11.0 vs 15.2). On ads, in-app purchases and device support there is nothing between them.

Tokyo Subway 3D Map is free to download; LCM GCD Prime Factor Math costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tokyo Subway 3D Map ships an update every 58 months, LCM GCD Prime Factor Math every 18 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Tokyo Subway 3D Map | LCM GCD Prime Factor Math |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 58 months | **Every 18 months** |
| Size | 7 MB | 5 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [Maria Dolores Garcia Ferre](https://appshunter.io/developer/970100146) |

## What reviewers say

### Tokyo Subway 3D Map

[App page](https://appshunter.io/ios/app/tokyo-subway-3d-map/id1251058775)

**Features:** macOS Compatibility

**In-app purchases:** none


### LCM GCD Prime Factor Math

[App page](https://appshunter.io/ios/app/lcm-gcd-prime-factor-math/id1488738897)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tokyo Subway 3D Map free?

Tokyo Subway 3D Map is free to download, with no in-app purchases.

### Is LCM GCD Prime Factor Math free?

LCM GCD Prime Factor Math costs $0.99, with no in-app purchases.

### Do Tokyo Subway 3D Map or LCM GCD Prime Factor Math have ads?

Neither Tokyo Subway 3D Map nor LCM GCD Prime Factor Math shows ads.

### Which is updated more often, Tokyo Subway 3D Map or LCM GCD Prime Factor Math?

Tokyo Subway 3D Map ships an update every 58 months, and LCM GCD Prime Factor Math every 18 months. Most recently, Tokyo Subway 3D Map was updated on October 26, 2026 and LCM GCD Prime Factor Math on October 26, 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.*