# js vs Math AI

The clearest difference is in-app purchases: js at none against Math AI's 3. js also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. Math AI sells 3 in-app purchases, starting at $6.99 per 7 days. js asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | js | Math AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Size | 1 MB | 39 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### js

[App page](https://appshunter.io/ios/app/js-star/id1382126067)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math AI

[App page](https://appshunter.io/ios/app/math-ai-solver-and-scanner/id6757243558)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Plan | $6.99 | per 7 days |
| Premium Yearly Plan | $34.99 | per year |
| Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is js free?

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

### Is Math AI free?

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

### Do js or Math AI have ads?

Math AI shows ads; js does not.

### Which is updated more often, js or Math AI?

js ships an update every 2 months, and Math AI every 2 months. Most recently, js was updated on October 18, 2026 and Math AI on October 12, 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.*