# KoKoFlash vs Unit Converter · Baro

The clearest difference is in-app purchases: Unit Converter · Baro at none against KoKoFlash's 1. Unit Converter · Baro also leads on update cadence (every 2 days vs monthly) and iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. KoKoFlash sells 1 one-off in-app purchase. Unit Converter · Baro asks for nothing beyond the download.

KoKoFlash ships an update monthly, Unit Converter · Baro every 2 days. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | KoKoFlash | Unit Converter · Baro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 21 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [masahiko akita](https://appshunter.io/developer/1891674153) | [Euiseok Kim](https://appshunter.io/developer/1879633122) |

## What reviewers say

### KoKoFlash

[App page](https://appshunter.io/ios/app/kokoflash/id6776223504)

This app helps users communicate visually and audibly in situations where speaking is difficult. It features a bright flashing screen, customizable messages, and an SOS beacon mode. It also includes an emergency contact display and quick launch options.

**Highlights:** High-brightness flashing screen, Adjustable flash speed, Pre-registered custom messages, Emergency contact display, SOS beacon mode (Morse code), Quick launch from lock screen

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ここフラッシュ PRO版 | Free | one-time |


### Unit Converter · Baro

[App page](https://appshunter.io/ios/app/unit-converter-baro/id6801835628)

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

**In-app purchases:** none


## Frequently asked questions

### Is KoKoFlash free?

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

### Is Unit Converter · Baro free?

Unit Converter · Baro is free to download, with no in-app purchases.

### Do KoKoFlash or Unit Converter · Baro have ads?

Neither KoKoFlash nor Unit Converter · Baro shows ads.

### Which is updated more often, KoKoFlash or Unit Converter · Baro?

KoKoFlash ships an update monthly, and Unit Converter · Baro every 2 days. Most recently, KoKoFlash was updated on October 28, 2026 and Unit Converter · Baro on October 26, 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.*