# Memori英単語 vs Math Gallery

The clearest difference is in-app purchases: Math Gallery at none against Memori英単語's 6. Math Gallery also leads on ads (none vs shown) and update cadence (every 2 days vs weekly). Memori英単語's advantage is iOS requirement (16.4 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Memori英単語 sells 6 in-app purchases, starting at $5.99 per month. Math Gallery asks for nothing beyond the download.

Memori英単語 ships an update weekly, Math Gallery every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Memori英単語 | Math Gallery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Size | 36 MB | 11 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [VIA VICO, K.K.](https://appshunter.io/developer/1893931814) | [Naoki Chiba](https://appshunter.io/developer/1895372512) |

## What reviewers say

### Memori英単語

[App page](https://appshunter.io/ios/app/memori/id6762361173)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memori Premium | $5.99 | per month |
| Memori Ticket x10 | $0.99 | one-time |
| Memori Ticket x50 | $3.99 | one-time |
| Memori Ticket x100 | $6.99 | one-time |
| Memori Ticket x250 | $17.99 | one-time |
| Memori Ticket x500 | $29.99 | one-time |


### Math Gallery

[App page](https://appshunter.io/ios/app/math-gallery-visual-math/id6818462769)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memori英単語 free?

Memori英単語 is free to download, with in-app purchases available.

### Is Math Gallery free?

Math Gallery is free to download, with no in-app purchases.

### Do Memori英単語 or Math Gallery have ads?

Memori英単語 shows ads; Math Gallery does not.

### Which is updated more often, Memori英単語 or Math Gallery?

Memori英単語 ships an update weekly, and Math Gallery every 2 days. Most recently, Memori英単語 was updated on October 31, 2026 and Math Gallery on October 31, 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.*