# Jiiya Roll vs Brainfool

The clearest difference is price: Brainfool at Free against Jiiya Roll's $1.79. Brainfool also leads on iOS requirement (15.1 vs 18.0). Jiiya Roll's advantage is update cadence (daily vs every 9 days). On ads, in-app purchases and device support there is nothing between them.

Brainfool is free to download; Jiiya Roll costs $1.79 up front. Neither carries in-app purchases, so what you see is what you pay.

Jiiya Roll ships an update daily, Brainfool every 9 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Jiiya Roll | Brainfool |
| --- | --- | --- |
| Price | $1.79 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 9 days |
| Size | 15 MB | 35 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Makoto Fukuoka](https://appshunter.io/developer/1817908735) | [伟宗 郑](https://appshunter.io/developer/1880025105) |

## What reviewers say

### Jiiya Roll

[App page](https://appshunter.io/ios/app/jiiya-roll/id6765972725)

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

**In-app purchases:** none


### Brainfool

[App page](https://appshunter.io/ios/app/brainfool/id6770218110)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jiiya Roll free?

Jiiya Roll costs $1.79, with no in-app purchases.

### Is Brainfool free?

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

### Do Jiiya Roll or Brainfool have ads?

Neither Jiiya Roll nor Brainfool shows ads.

### Which is updated more often, Jiiya Roll or Brainfool?

Jiiya Roll ships an update daily, and Brainfool every 9 days. Most recently, Jiiya Roll was updated on October 28, 2026 and Brainfool 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.*