# Brainfool vs Signal Lost

The clearest difference is in-app purchases: Brainfool at none against Signal Lost's 3. Brainfool also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Signal Lost sells 3 one-off in-app purchases. Brainfool asks for nothing beyond the download.

Brainfool ships an update every 8 days, Signal Lost every 2 months. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Brainfool | Signal Lost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/signal-lost-survive/id6773804306/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | — | Free |
| Size | 35 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [伟宗 郑](https://appshunter.io/developer/1880025105) | [Thomas Masters](https://appshunter.io/developer/6773804308) |

## What reviewers say

### Brainfool

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

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

**In-app purchases:** none


### Signal Lost

[App page](https://appshunter.io/ios/app/signal-lost-survive/id6773804306)

A narrative survival game where you listen to a radio to make choices. Decipher broadcasts to find allies and uncover the truth behind a global event. Your decisions have lasting consequences.

**Highlights:** Real-time narrative pacing, 13 distinct characters, Branching narrative choices, In-game journal, AI-generated live responses, Hidden mechanics

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Cup of Coffee | $0.99 | one-time |
| A Fresh Battery | $2.99 | one-time |
| A New Antenna | $4.99 | one-time |


## Frequently asked questions

### Is Brainfool free?

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

### Is Signal Lost free?

Signal Lost is free to download, with in-app purchases available.

### Do Brainfool or Signal Lost have ads?

Neither Brainfool nor Signal Lost shows ads.

### Which is updated more often, Brainfool or Signal Lost?

Brainfool ships an update every 8 days, and Signal Lost every 2 months. Most recently, Brainfool was updated on November 5, 2026 and Signal Lost on November 7, 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.*