# Shikai vs Matheion

The clearest difference is in-app purchases: Matheion at none against Shikai's 1. Matheion also leads on update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Shikai sells 1 in-app purchase, starting at $4.99 per month. Matheion asks for nothing beyond the download.

Shikai ships an update monthly, Matheion every 2 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shikai | Matheion |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 70 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vlad Volkov](https://appshunter.io/developer/6774729121) | [zhao lu](https://appshunter.io/developer/1084198171) |

## What reviewers say

### Shikai

[App page](https://appshunter.io/ios/app/shikai-learn-with-ai/id6774729119)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription | $4.99 | per month |


### Matheion

[App page](https://appshunter.io/ios/app/matheion-learn-to-program/id6780350971)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shikai free?

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

### Is Matheion free?

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

### Do Shikai or Matheion have ads?

Neither Shikai nor Matheion shows ads.

### Which is updated more often, Shikai or Matheion?

Shikai ships an update monthly, and Matheion every 2 weeks. Most recently, Shikai was updated on October 25, 2026 and Matheion 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.*