# Memory Space vs "Station map, learn railway m

The clearest difference is in-app purchases: Memory Space at none against "Station map, learn railway m's 8. "Station map, learn railway m's advantage is update cadence (every 5 days vs every 95 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. "Station map, learn railway m sells 8 in-app purchases, starting at $0.49 per month. Memory Space asks for nothing beyond the download.

Memory Space ships an update every 95 months, "Station map, learn railway m every 5 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Memory Space | "Station map, learn railway m |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 95 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 28 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [JunJie Yang](https://appshunter.io/developer/1442087099) | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) |

## What reviewers say

### Memory Space

[App page](https://appshunter.io/ios/app/memory-space-memory-challenge/id1442087100)

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

**In-app purchases:** none


### "Station map, learn railway m

[App page](https://appshunter.io/ios/app/station-map-learn-railway-m/id6453123754)

Learn and memorize train station names and their locations by engaging with map-based quizzes. This application helps users match place names with their geographical positions through interactive challenges.

**Highlights:** Map-based location search, Interactive station quizzes, Memorize station names and locations, Extensive line coverage, Future line additions planned

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrainQuiz PRO Edition (1month) | $0.49 | per month |
| TrainQuiz PRO Edition (1 year) | $3.99 | per year |
| JR飯田線 | $0.29 | one-time |
| 東京都交通局（都営地下鉄） | $0.29 | one-time |
| コーヒー１杯をおごる | $0.49 | one-time |
| 東京地下鉄（東京メトロ） | $0.49 | one-time |
| ハンバーガー１個をおごる | $1.99 | one-time |
| ランチ１回をおごる | $2.99 | one-time |


## Frequently asked questions

### Is Memory Space free?

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

### Is "Station map, learn railway m free?

"Station map, learn railway m is free to download, with in-app purchases available.

### Do Memory Space or "Station map, learn railway m have ads?

Both Memory Space and "Station map, learn railway m show ads.

### Which is updated more often, Memory Space or "Station map, learn railway m?

Memory Space ships an update every 95 months, and "Station map, learn railway m every 5 days. Most recently, Memory Space was updated on October 7, 2026 and "Station map, learn railway m on October 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.*