# Keyboard² vs FlashSOS Emergency Flashlight

The clearest difference is in-app purchases: Keyboard² at none against FlashSOS Emergency Flashlight's 1. Keyboard² also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). FlashSOS Emergency Flashlight's advantage is update cadence (every 3 weeks vs every 12 months). On price and ads there is nothing between them.

Both are free to download. FlashSOS Emergency Flashlight sells 1 one-off in-app purchase. Keyboard² asks for nothing beyond the download.

Keyboard² ships an update every 12 months, FlashSOS Emergency Flashlight every 3 weeks. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Keyboard² | FlashSOS Emergency Flashlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/keyboard/id1337674728/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 11 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takuto Nakamura](https://appshunter.io/developer/1203150472) | [晓强 江](https://appshunter.io/developer/6775869180) |

## What reviewers say

### Keyboard²

[App page](https://appshunter.io/ios/app/keyboard/id1337674728)

This custom keyboard app allows you to play musical notes and chords directly from your device's keyboard. It supports entering numbers, mathematical symbols, and ABC music notation, with the ability to play sounds and chords.

**Highlights:** Play musical notes and chords, Enter numbers and mathematical symbols, Supports ABC music notation, Play sounds, Custom keyboard functionality

**Features:** Vision Pro support

**In-app purchases:** none


### FlashSOS Emergency Flashlight

[App page](https://appshunter.io/ios/app/flashsos-emergency-flashlight/id6788298765)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlashSOS Pro (Morse + Beat Forever) | $1.99 | one-time |


## Frequently asked questions

### Is Keyboard² free?

Keyboard² is free to download, with no in-app purchases.

### Is FlashSOS Emergency Flashlight free?

FlashSOS Emergency Flashlight is free to download, with in-app purchases available.

### Do Keyboard² or FlashSOS Emergency Flashlight have ads?

Neither Keyboard² nor FlashSOS Emergency Flashlight shows ads.

### Which is updated more often, Keyboard² or FlashSOS Emergency Flashlight?

Keyboard² ships an update every 12 months, and FlashSOS Emergency Flashlight every 3 weeks. Most recently, Keyboard² was updated on November 2, 2026 and FlashSOS Emergency Flashlight on October 25, 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.*