# KORAKU vs Linear Algebra

The clearest difference is in-app purchases: KORAKU at none against Linear Algebra's 1. KORAKU also leads on iOS requirement (15.0 vs 18.6). Linear Algebra's advantage is ads (none vs shown) and update cadence (every 2 days vs every 10 days). On price and device support there is nothing between them.

Both are free to download. Linear Algebra sells 1 one-off in-app purchase. KORAKU asks for nothing beyond the download.

KORAKU ships an update every 10 days, Linear Algebra every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KORAKU | Linear Algebra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 27 MB | 21 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [Mohammed Yussif](https://appshunter.io/developer/1873447146) |

## What reviewers say

### KORAKU

[App page](https://appshunter.io/ios/app/koraku/id6760215571)

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

**In-app purchases:** none


### Linear Algebra

[App page](https://appshunter.io/ios/app/linear-algebra-matrixviz/id6791628348)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MatrixViz Pro Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is KORAKU free?

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

### Is Linear Algebra free?

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

### Do KORAKU or Linear Algebra have ads?

KORAKU shows ads; Linear Algebra does not.

### Which is updated more often, KORAKU or Linear Algebra?

KORAKU ships an update every 10 days, and Linear Algebra every 2 days. Most recently, KORAKU was updated on October 24, 2026 and Linear Algebra on October 25, 2026.

---

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