# Matrix math calculator vs MIMI Private Timer

The clearest difference is in-app purchases: Matrix math calculator at none against MIMI Private Timer's 2. Matrix math calculator also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). MIMI Private Timer's advantage is update cadence (every 6 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. MIMI Private Timer sells 2 one-off in-app purchases. Matrix math calculator asks for nothing beyond the download.

Matrix math calculator ships an update every 3 months, MIMI Private Timer every 6 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Matrix math calculator | MIMI Private Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/matrix-math-calculator/id993273855/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 52 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [camilo arcila](https://appshunter.io/developer/993049913) | [Ryoma Inoue](https://appshunter.io/developer/1862345588) |

## What reviewers say

### Matrix math calculator

[App page](https://appshunter.io/ios/app/matrix-math-calculator/id993273855)

Perform various matrix operations including addition, subtraction, and multiplication. Calculate the transposed matrix, adjoint, inverse, determinant, and rank. Supports matrices of any size (MxN).

**Highlights:** Matrix Addition, Matrix Subtraction, Matrix Multiplication, Transposed Matrix, Adjoint Matrix, Inverse Matrix, Determinant Calculation, Rank Calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### MIMI Private Timer

[App page](https://appshunter.io/ios/app/mimi-private-timer/id6760279762)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Buy me a coffee | $2.99 | one-time |


## Frequently asked questions

### Is Matrix math calculator free?

Matrix math calculator is free to download, with no in-app purchases.

### Is MIMI Private Timer free?

MIMI Private Timer is free to download, with in-app purchases available.

### Do Matrix math calculator or MIMI Private Timer have ads?

Neither Matrix math calculator nor MIMI Private Timer shows ads.

### Which is updated more often, Matrix math calculator or MIMI Private Timer?

Matrix math calculator ships an update every 3 months, and MIMI Private Timer every 6 days. Most recently, Matrix math calculator was updated on October 1, 2026 and MIMI Private Timer on October 7, 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.*