# Tempest Game Clock vs iChessOne

The clearest difference is rating: Tempest Game Clock at 4.9 against iChessOne's 4.0. Tempest Game Clock also leads on ratings volume (7 vs 2) and iOS requirement (12.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

Tempest Game Clock holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Tempest Game Clock ships an update every 2 months, iChessOne every 6 weeks. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Tempest Game Clock | iChessOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/tempest-game-clock/id1564359363/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/ichessone/id6447067426/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 39 MB | 86 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [TEMPO-GAMES LLC](https://appshunter.io/developer/1564359365) | [Janusz Lisowski](https://appshunter.io/developer/1680192609) |

## What reviewers say

### Tempest Game Clock

[App page](https://appshunter.io/ios/app/tempest-game-clock/id1564359363)

This companion app transforms your iPhone into a high-definition display for a physical, tournament-style game clock. It pairs with the clock to provide clear analog and digital timing for various board games, including a strict tournament mode.

**Highlights:** iPhone display integration, Analog and digital game timing, Supports increments and delays, Tournament mode, Compatible with Chess, Backgammon, Go, Scrabble, etc., Pairs with physical game clock

**In-app purchases:** none


### iChessOne

[App page](https://appshunter.io/ios/app/ichessone/id6447067426)

Experience traditional chess with a smart electronic board. Play online, train with AI, analyze games, and customize your experience with interactive LEDs. It connects the feel of physical pieces with the convenience of modern software for an enhanced chess ecosystem.

**Highlights:** Play online on a real chessboard, Offline play and Stockfish training, Game analysis and PGN export, Interactive LED support, Advanced personalization settings, Board management and firmware updates, Reliable wireless Bluetooth connection

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

**In-app purchases:** none


## Frequently asked questions

### Is Tempest Game Clock free?

Tempest Game Clock is free to download, with no in-app purchases.

### Is iChessOne free?

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

### Which has better reviews, Tempest Game Clock or iChessOne?

Tempest Game Clock is rated higher. Tempest Game Clock averages 4.9 out of 5 from 7 ratings, while iChessOne averages 4.0 from 2 ratings.

### Do Tempest Game Clock or iChessOne have ads?

Neither Tempest Game Clock nor iChessOne shows ads.

### Which is updated more often, Tempest Game Clock or iChessOne?

Tempest Game Clock ships an update every 2 months, and iChessOne every 6 weeks. Most recently, Tempest Game Clock was updated on September 9, 2026 and iChessOne on June 1, 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.*