# KOSO Flasher

> KOSO Flasher (iPhone/iPad app by Tong Yah Electronic Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/koso-flasher/id6444849232 (this page in markdown: same URL + `.md`)
- Developer: [Tong Yah Electronic Technology Co., Ltd.](https://appshunter.io/developer/1050103913)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0 · 84 MB
- Languages: American English
- Released: 2023-05-18
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/koso-flasher/id6444849232/reviews.md

## What is KOSO Flasher?

KOSO Flasher is a tool used through a mobile app to adjust KOSO's motorcycle turn signals. It connects via Bluetooth and is used to adjust the turn signal flashing frequency, interval, flashing sound effects, and volume. By connecting to the device's network, you can also upload custom sound files to use as flashing sound effects.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 120 KOSO COINS | $3.99 | one-time |
| 30 KOSO COINS | $0.99 | one-time |
| 60 KOSO COINS | $1.99 | one-time |
| 240 KOSO COINS | $6.99 | one-time |



## Version history (last 5 releases)

### 1.2.27 — 2026-07-09

- 修正介面問題
- 修正系統穩定性問題

### 1.2.26 — 2026-06-16

修正檔案上傳問題
修正系統問定性問題

### 1.2.25 — 2026-06-04

App stability improvements

### 1.2.24 — 2026-05-11

修正改善連線問題

### 1.2.23 — 2026-04-28

User interface improvement

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## More apps by Tong Yah Electronic Technology Co., Ltd.

- [KOSO - K Race](https://appshunter.io/ios/app/koso-k-race/id1588881443)
- [KOSO - K Link](https://appshunter.io/ios/app/koso-k-link/id1601702100)
- [KOSO - K Lap](https://appshunter.io/ios/app/koso-k-lap/id1638509146)

All apps by Tong Yah Electronic Technology Co., Ltd.: https://appshunter.io/developer/1050103913

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-23.*