Comparison

Tempest Game Clock vs iChessOne

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Tempest Game Clock

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
Read full description

This is a COMPANION APP to the Tempest Game Clock (available at tempestclock.com) A unique, tournament-style, heavy-weighted game clock that uses your own iPhone as its high definition, full color display. This app is intended only for owners of the Tempest Game Clock: a deluxe traditional form factor chess clock (using a patented precision rocker to control play during the game, not the touch screen). It pairs with this app to deliver clear analog and digital game timing with or without increments, delays, sudden death or OT time controls. Perfect for Chess, Backgammon, Go, Scrabble, Othello/Reversi, Checkers/Draughts, and other board games. Tempest features a strict TOURNAMENT MODE - which disables all phone / text functionality during rated games per FIDE and USCF guidelines. To see the clock in action and to order yours, please visit tempestclock.com.

About

iChessOne

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
Read full description

iChessOne is the official app for the foldable electronic chessboard designed for natural play on a real board. Built by chess players for chess players, the iChessOne app combines the feel of traditional over-the-board chess with the convenience of modern software. It unlocks the full potential of the iChessOne board, allowing you to play online, train with Stockfish, analyze your games, manage your board, and customize your playing experience. Whether you want to play at home, train on the go, or enjoy online chess on a real wooden board, iChessOne gives you one connected ecosystem for playing, learning, and improving. Key Features 1. Play online on a real chessboard Connect your iChessOne board and play on popular platforms such as Lichess and Chess.com while keeping the natural feel of physical pieces. The board recognizes individual pieces and their positions in real time, so you can focus on the game instead of the screen. 2. Offline play and training with Stockfish Play against the built-in Stockfish engine with multiple difficulty levels, or use the full strength of the engine for analysis. You can also play local games 1v1 on the same board, making iChessOne suitable for both training and casual play. 3. Game analysis, history, and PGN export Review your games, analyze positions, and improve your chess skills over time. Games can be saved, revisited later, and exported in PGN format for further analysis or sharing. 4. Interactive LED support The iChessOne board uses multicolor LED indicators to highlight moves, show your opponent’s actions, and support gameplay. The app lets you customize LED colors, brightness, and effects to match your preferences. 5. Advanced personalization Adjust key gameplay and board settings to fit your style. Customize move detection, premoves, LED behavior, and other options to create the experience that works best for you. 6. Board management and firmware updates Use the app to monitor battery status, manage your board, and install firmware updates that bring improvements and new features over time. 7. Reliable wireless connection The app communicates with the board via Bluetooth Low Energy, providing stable and efficient wireless connectivity designed for everyday play. 8. More than a companion app iChessOne is not just a controller for the board - it is the central place where traditional chess meets online play, analysis, training, and regular feature updates. With iChessOne, you can enjoy the authenticity of a real chessboard together with the flexibility of modern chess software - at home, during training, or while playing online.

Screenshots

Tempest Game Clock4 screens
iChessOne4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Tempest Game Clock versus iChessOne: the parameters behind the verdict, then further details
ParameterTempest Game ClockiChessOne
PriceFreeFree
Rating4.9 (7 ratings) — better4.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings7 — better2
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size39 MB86 MB
Age rating4+12+
DeveloperTEMPO-GAMES LLCJanusz Lisowski

Customer experience

Tempest Game Clock

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

iChessOne

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Tempest Game Clock

No in-app purchases

None

iChessOne

No in-app purchases

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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