# TenSync vs Stopwatch Challenge

The clearest difference is ads: Stopwatch Challenge at none against TenSync's shown. Stopwatch Challenge also leads on update cadence (daily vs every 4 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TenSync ships an update every 4 days, Stopwatch Challenge daily. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TenSync | Stopwatch Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Daily** |
| Size | 6 MB | 11 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hakaru Hirose](https://appshunter.io/developer/1866507020) | [Thibault Ducret](https://appshunter.io/developer/1842797901) |

## What reviewers say

### TenSync

[App page](https://appshunter.io/ios/app/tensync/id6763708226)

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

**In-app purchases:** none


### Stopwatch Challenge

[App page](https://appshunter.io/ios/app/stopwatch-challenge/id6811134669)

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

**In-app purchases:** none


## Frequently asked questions

### Is TenSync free?

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

### Is Stopwatch Challenge free?

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

### Do TenSync or Stopwatch Challenge have ads?

TenSync shows ads; Stopwatch Challenge does not.

### Which is updated more often, TenSync or Stopwatch Challenge?

TenSync ships an update every 4 days, and Stopwatch Challenge daily. Most recently, TenSync was updated on September 21, 2026 and Stopwatch Challenge on September 23, 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.*