# Unitask vs Sarrus Calculator Matrix Det

The clearest difference is in-app purchases: Unitask at none against Sarrus Calculator Matrix Det's 2. Unitask also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Sarrus Calculator Matrix Det sells 2 in-app purchases, starting at $4.99 per 7 days. Unitask asks for nothing beyond the download.

Unitask ships an update monthly, Sarrus Calculator Matrix Det every 2 months. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Unitask | Sarrus Calculator Matrix Det |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Size | 113 MB | 144 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marketeye Sp. z o.o.](https://appshunter.io/developer/1679918285) | [Juan Antonio Veloz Gutierrez](https://appshunter.io/developer/1810351183) |

## What reviewers say

### Unitask

[App page](https://appshunter.io/ios/app/unitask/id6446982986)

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

**In-app purchases:** none


### Sarrus Calculator Matrix Det

[App page](https://appshunter.io/ios/app/sarrus-calculator-matrix-det/id6745130843)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Sarrus Calculator Weekly | $4.99 | per 7 days |
| PRO Sarrus Calculator Yearly | $24.99 | per year |


## Frequently asked questions

### Is Unitask free?

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

### Is Sarrus Calculator Matrix Det free?

Sarrus Calculator Matrix Det is free to download, with in-app purchases available.

### Do Unitask or Sarrus Calculator Matrix Det have ads?

Sarrus Calculator Matrix Det shows ads; Unitask does not.

### Which is updated more often, Unitask or Sarrus Calculator Matrix Det?

Unitask ships an update monthly, and Sarrus Calculator Matrix Det every 2 months. Most recently, Unitask was updated on October 12, 2026 and Sarrus Calculator Matrix Det on October 14, 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.*