# anzan vs Sumday

The clearest difference is in-app purchases: anzan at none against Sumday's 1. anzan also leads on ads (none vs shown). Sumday's advantage is iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Sumday sells 1 one-off in-app purchase. anzan asks for nothing beyond the download.

## The numbers

| Metric | anzan | Sumday |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 34 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takashi Shigenaga](https://appshunter.io/developer/1740254360) | [TON CO., LTD.](https://appshunter.io/developer/6796677381) |

## What reviewers say

### anzan

[App page](https://appshunter.io/ios/app/anzan-kun/id6759855636)

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

**In-app purchases:** none


### Sumday

[App page](https://appshunter.io/ios/app/sumday-mental-math-practice/id6802302480)

Sharpen your number sense with daily mental math exercises. This app offers quick arithmetic practice, practical math tricks, and progress tracking to improve your speed and accuracy in just five minutes a day.

**Highlights:** Daily arithmetic questions, Adaptive difficulty levels, Mental math technique cards, Progress tracking and reports, Streak tracking, Offline functionality

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumday Premium | $3.99 | one-time |


## Frequently asked questions

### Is anzan free?

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

### Is Sumday free?

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

### Do anzan or Sumday have ads?

Sumday shows ads; anzan does not.

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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.*