# Simple Flash Mental Arithmetic vs Cascadou

The clearest difference is price: Simple Flash Mental Arithmetic at Free against Cascadou's $4.99. Simple Flash Mental Arithmetic also leads on iOS requirement (12.0 vs 15.6). Cascadou's advantage is review sentiment (92% vs 50%) and ads (none vs shown). On in-app purchases and device support there is nothing between them.

Simple Flash Mental Arithmetic is free to download; Cascadou costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Flash Mental Arithmetic ships an update every 2 months, Cascadou fortnightly. The most recent releases landed on September 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Simple Flash Mental Arithmetic | Cascadou |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[3.8 (6 ratings)](https://appshunter.io/ios/app/cascadou/id6767624690/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 50.0% of reviews | **91.7% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Ad-supported** | Paid |
| Size | 21 MB | 529 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Takeda](https://appshunter.io/developer/1021096508) | [Machineboy AS](https://appshunter.io/developer/384358370) |

## What reviewers say

### Simple Flash Mental Arithmetic

[App page](https://appshunter.io/ios/app/simple-flash-mental-arithmetic/id1022200948)

Practice mental math with this application. Choose from various difficulty levels to train your arithmetic skills or engage in brain exercises for anti-aging. It's a straightforward tool for improving calculation speed and accuracy.

**Highlights:** Adjustable difficulty levels, Mental arithmetic training, Anti-aging brain exercises, Suitable for all skill levels

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

**In-app purchases:** none


### Cascadou

[App page](https://appshunter.io/ios/app/cascadou/id6767624690)

A deckbuilding roguelike where poker hands trigger chain reactions. Plan sequences, use stickers to break rules, and unleash satisfying cascades. Survive seven days by creating high-scoring hands and upgrading your deck with collectible items.

**Highlights:** Deckbuilding roguelike gameplay, Collect and combine 120 stickers, 8 unique card types for combos, Permanent upgrades with 10 badges, Multiple play modes for all skill levels, Daily Challenges and special stages

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Flash Mental Arithmetic free?

Simple Flash Mental Arithmetic is free to download, with no in-app purchases.

### Is Cascadou free?

Cascadou costs $4.99, with no in-app purchases.

### Do Simple Flash Mental Arithmetic or Cascadou have ads?

Simple Flash Mental Arithmetic shows ads; Cascadou does not.

### Which is updated more often, Simple Flash Mental Arithmetic or Cascadou?

Simple Flash Mental Arithmetic ships an update every 2 months, and Cascadou fortnightly. Most recently, Simple Flash Mental Arithmetic was updated on September 27, 2026 and Cascadou 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.*