# RustChap vs Math Vale

The clearest difference is in-app purchases: RustChap at none against Math Vale's 2. RustChap also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Math Vale sells 2 in-app purchases, starting at $39.99 per year. RustChap asks for nothing beyond the download.

RustChap ships an update daily, Math Vale every 4 days. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RustChap | Math Vale |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Size | 12 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [HOSSEIN TOHIDI](https://appshunter.io/developer/1796137002) | [Yinhuan Yuan](https://appshunter.io/developer/6811600067) |

## What reviewers say

### RustChap

[App page](https://appshunter.io/ios/app/rustchap/id6798180343)

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

**In-app purchases:** none


### Math Vale

[App page](https://appshunter.io/ios/app/math-vale/id6812591516)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Vale, a year | $39.99 | per year |
| Math Vale, for good | $79.99 | one-time |


## Frequently asked questions

### Is RustChap free?

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

### Is Math Vale free?

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

### Do RustChap or Math Vale have ads?

Neither RustChap nor Math Vale shows ads.

### Which is updated more often, RustChap or Math Vale?

RustChap ships an update daily, and Math Vale every 4 days. Most recently, RustChap was updated on October 6, 2026 and Math Vale on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*