# TenSync — 10-second sync challenge

> 10-second sync challenge (iPhone/iPad app by Hakaru Hirose.)

- Source: https://appshunter.io/ios/app/tensync/id6763708226 (this page in markdown: same URL + `.md`)
- Developer: [Hakaru Hirose](https://appshunter.io/developer/1866507020)
- Category: Games, Utilities, Casual, Trivia
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: French (France), German (Germany), American English, Arabic, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, European Spanish, Hindi, Indonesian and 10 more
- Released: 2026-04-29
- Data updated: 2026-09-02
- User reviews in markdown: https://appshunter.io/ios/app/tensync/id6763708226/reviews.md

## What is TenSync?

TenSync is a minimal timing game: tap Start, then tap Stop at exactly 10.00 seconds.

The twist: when other iPhones running TenSync are on the same Wi-Fi, they auto-discover each other and start every round at the exact same moment (synchronized within ±2 ms). Each device stops independently and sees its own result, so you can race friends in the same room with no setup, no accounts, no servers.

A 1-second tick metronome (toggleable) helps you stay in rhythm. An 11-second time limit prevents endless waits. Your best attempt is tracked locally.

No accounts. No ads. No tracking.


## Version history (last 5 releases)

### 1.0.6 — 2026-06-03

Bug fixes and improvements.

### 1.0.5 — 2026-05-29

Minor improvements and bug fixes.

### 1.0.4 — 2026-05-26

Added Our Apps section in Settings to discover 1Take and PeerClock Metronome from the same developer.

### 1.0.3 — 2026-05-22

Bug fixes and ad improvements.

### 1.0.2 — 2026-05-05

PERFECT and SO CLOSE celebration animations on every round.
Best scores are now scoped to today, this week, and this month — pick which one shows in the HUD from settings, or clear them all with one tap.

## More apps by Hakaru Hirose

- [simpleMIDIController](https://appshunter.io/ios/app/simplemidicontroller/id6757380884)
- [1Take](https://appshunter.io/ios/app/1take/id6757945099)
- [SonicDNACollector](https://appshunter.io/ios/app/sonicdnacollector/id6758269736)
- [GitInflow](https://appshunter.io/ios/app/gitinflow/id6760921077)
- [PeerClock Metronome](https://appshunter.io/ios/app/peerclock-metronome/id6762972307)

All apps by Hakaru Hirose: https://appshunter.io/developer/1866507020

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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 2026-09-02.*