# RapZap chess clock — user reviews

> 6 indexed App Store user reviews of RapZap chess clock by Daniel Mattheus, rated 3.20/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/rapzap-chess-clock/id698997453/reviews
- App overview in markdown: https://appshunter.io/ios/app/rapzap-chess-clock/id698997453.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 0 · 2★ 1 · 1★ 2

## Most critical reviews (6 lowest-rated)

### 1/5 — Avoid

*2016-12-25, version 1.12*

Not working. Needs in app purchases. Avoid. Crashes

### 1/5 — Annoying ads even after upgrade

*2014-10-18, version 1.12*

I purchased the full version. Still it features annoying ads that distract. I understand advertisements with free apps but not for paid software.

### 1/5 — Very limited

*2014-04-19, version 1.12*

In app purchase necessary for common times. Couldn't change time set from 60 minutes. Ads seem to work fine though.

### 2/5 — Find a different one

*2014-12-28, version 1.12*

Decent app but too expensive for the offering.

### 5/5 — Good app

*2013-11-10, version 1.12*

Super convenient!

### 5/5 — A must

*2013-11-10, version 1.12*

All of the chess enthusiasts in our family have this clock it is a must I repeat a must for anybody in the chess game competition or for fun. And our enthusiasts run from New York City to Chicago to Florida to Oregon so get it quickly

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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 2026-06-06.*