# Calcul Mental in Space vs Blitz Math

The clearest difference is in-app purchases: Blitz Math at none against Calcul Mental in Space's 1. Calcul Mental in Space's advantage is update cadence (every 6 days vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calcul Mental in Space sells 1 one-off in-app purchase. Blitz Math asks for nothing beyond the download.

Calcul Mental in Space ships an update every 6 days, Blitz Math every 4 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Calcul Mental in Space | Blitz Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (576 ratings)](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802/reviews)** | — |
| Number of ratings | **576** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 65 MB |
| Requires iOS | 15.0 | **14.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Huy Le](https://appshunter.io/developer/1279607371) | [VELI OZBAY](https://appshunter.io/developer/6790209771) |

## What reviewers say

### Calcul Mental in Space

[App page](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802)

Practice mental math with a fun, space-themed game. Improve your calculation speed, reflexes, and math skills through engaging challenges. Master addition, subtraction, multiplication, and division with increasing difficulty levels.

**Highlights:** Mental math practice, Speed and reflex training, Addition, subtraction, multiplication, division, Times and division tables review, Progressive difficulty levels, Achievement encouragement

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Premium | $2.99 | one-time |


### Blitz Math

[App page](https://appshunter.io/ios/app/blitz-math-puzzle-challenge/id6790209769)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calcul Mental in Space free?

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

### Is Blitz Math free?

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

### Do Calcul Mental in Space or Blitz Math have ads?

Both Calcul Mental in Space and Blitz Math show ads.

### Which is updated more often, Calcul Mental in Space or Blitz Math?

Calcul Mental in Space ships an update every 6 days, and Blitz Math every 4 weeks. Most recently, Calcul Mental in Space was updated on November 11, 2026 and Blitz Math on November 5, 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.*