# SudokuBlind vs Mental Math

The clearest difference is update cadence: Mental Math at weekly against SudokuBlind's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SudokuBlind sells 5 one-off in-app purchases and Mental Math sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

SudokuBlind ships an update every 3 weeks, Mental Math weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SudokuBlind | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (15 ratings)](https://appshunter.io/ios/app/mental-math/id6741392626/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 2 MB | 27 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Kristof Nijs](https://appshunter.io/developer/1608072573) | [Habi](https://appshunter.io/developer/1768088004) |

## What reviewers say

### SudokuBlind

[App page](https://appshunter.io/ios/app/sudokublind/id1608072571)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase second puzzle type | $4.49 | one-time |
| Purchase classic puzzles | $6.49 | one-time |
| Purchase binary puzzles | $6.49 | one-time |
| Purchase of the app | $6.49 | one-time |
| Purchase both puzzle types | $10.99 | one-time |


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math/id6741392626)

This app makes practicing math skills enjoyable for all ages through habit-forming exercises. It offers various math topics, custom equation creation, and multiple input methods. Personalized feedback and progress tracking help build confidence and foster a love for math.

**Highlights:** Addition, subtraction, fractions, multiplication practice, Custom equation creation, Handwriting input and audio guidance, Personalized feedback and progress tracking, Playful characters and rewards system, Family learning options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Math | $6.99 | per month |
| Mental Math | $49.99 | per year |


## Frequently asked questions

### Is SudokuBlind free?

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

### Is Mental Math free?

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

### Do SudokuBlind or Mental Math have ads?

Neither SudokuBlind nor Mental Math shows ads.

### Which is updated more often, SudokuBlind or Mental Math?

SudokuBlind ships an update every 3 weeks, and Mental Math weekly. Most recently, SudokuBlind was updated on October 25, 2026 and Mental Math on October 28, 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.*