# Basic Arithmetic vs Calcul Mental in Space

The clearest difference is in-app purchases: Basic Arithmetic at none against Calcul Mental in Space's 1. Basic Arithmetic also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). On price and device support there is nothing between them.

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

## The numbers

| Metric | Basic Arithmetic | Calcul Mental in Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (575 ratings)](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802/reviews)** |
| Number of ratings | — | **575** |
| Positive reviews | — | 78.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 134 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Jantajorn Teepakdee](https://appshunter.io/developer/1110771257) | [Huy Le](https://appshunter.io/developer/1279607371) |

## What reviewers say

### Basic Arithmetic

[App page](https://appshunter.io/ios/app/basic-arithmetic-3rd-grade-math-games/id1160376228)

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Basic Arithmetic free?

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

### Is Calcul Mental in Space free?

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

### Do Basic Arithmetic or Calcul Mental in Space have ads?

Calcul Mental in Space shows ads; Basic Arithmetic does not.

---

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