# Stockout Zero vs Brainfool

The clearest difference is price: Brainfool at Free against Stockout Zero's $0.29. Brainfool also leads on iOS requirement (15.1 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Brainfool is free to download; Stockout Zero costs $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.

Stockout Zero ships an update weekly, Brainfool every 8 days. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Stockout Zero | Brainfool |
| --- | --- | --- |
| Price | $0.29 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Size | 24 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

### Stockout Zero

[App page](https://appshunter.io/ios/app/stockout-zero/id6768219693)

**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 Stockout Zero free?

Stockout Zero costs $0.29, with no in-app purchases.

### Is Brainfool free?

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

### Do Stockout Zero or Brainfool have ads?

Neither Stockout Zero nor Brainfool shows ads.

### Which is updated more often, Stockout Zero or Brainfool?

Stockout Zero ships an update weekly, and Brainfool every 8 days. Most recently, Stockout Zero was updated on October 9, 2026 and Brainfool on October 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.*