# Ruidaichan vs MathQuest

The clearest difference is device support: MathQuest at 3 against Ruidaichan's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Ruidaichan sells 2 in-app purchases, starting at $1.99 per month and MathQuest sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on September 15, 2026.

## The numbers

| Metric | Ruidaichan | MathQuest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 18 MB | 167 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Ohashi](https://appshunter.io/developer/1880818831) | [DANIEL XIANGYANG HAN](https://appshunter.io/developer/1895942706) |

## What reviewers say

### Ruidaichan

[App page](https://appshunter.io/ios/app/ruidaichan-extra-math-practice/id6759811359)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Plan | $1.99 | per month |
| Premium Plan | $4.99 | per month |


### MathQuest

[App page](https://appshunter.io/ios/app/mathquest-fun-math-games/id6764867541)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Green Meadows | $2.99 | one-time |
| Unlock Treehouse Canopy | $2.99 | one-time |
| Unlock Sky Islands | $2.99 | one-time |


## Frequently asked questions

### Is Ruidaichan free?

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

### Is MathQuest free?

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

### Do Ruidaichan or MathQuest have ads?

Neither Ruidaichan nor MathQuest shows ads.

### Which is updated more often, Ruidaichan or MathQuest?

Ruidaichan ships an update every 5 days, and MathQuest every 5 days. Most recently, Ruidaichan was updated on September 15, 2026 and MathQuest on September 15, 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.*