The Turnkeeper vs Sunboost
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Turnkeeper
This app helps speed up board game sessions by providing customizable timers for turns or entire games. It supports a large number of players and offers flexible time management options, including adding time per turn or to specific players. Features like crash protection and unlimited undo ensure a smooth gaming experience.
- Turn and game timer modes
- Supports 2-20 players
- Customizable time budgets
- Time added per turn
- Crash/reboot protection
- Unlimited undo functionality
- Notifications for time up
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Love board games, but wish turns moved a little faster? The Turnkeeper keeps games moving with flexible timers for 2 to 20 players. Use it casually to discourage endless turns, or competitively to give every player a fixed time budget. The Turnkeeper can be used as a simple turn timer or as a multiplayer game clock — like a chess clock built for the whole table. In Turn Timer mode, each player gets a set amount of time for every turn. It’s great for keeping casual games moving and encouraging players to think ahead while others are playing. In Game Timer mode, each player gets a total time budget for the entire game. You can optionally add extra time after each turn, similar to increment timing in chess. Features: • Supports 2 to 20 players • Turn Timer and Game Timer modes • Set timers from 1 minute to 10+ hours • Optional time added after every turn • Count-up or countdown timing • Clockwise, counter-clockwise, or freestyle turn order • Customize player names and colors • Mark defeated players to remove them from the turn order • Add or adjust time during a game • Adjust the per-turn time increment while playing • Loud time-up alerts • Notifications when time expires in the background • Unlimited Undo • Restore an active game after restarting the app • Rotate the game board during setup The Turnkeeper doesn’t automatically eliminate someone when their clock reaches zero. Their timer can continue into negative time, leaving the rules up to your group. Running out of time might mean losing the game, earning a penalty, or simply serving as a reminder to keep things moving. You can also give individual players extra time, making it easy to accommodate beginners or anyone who needs a little longer. Whether you’re trying to fit a game into a short amount of time, speed up a slow-moving session, or run a competitive multiplayer game with chess-style timing, The Turnkeeper helps keep everyone focused and the game moving.
Sunboost
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Users can monitor the energy storage system parameters in real-time through the APP, including battery level, charging and discharging status and power, and receive real-time alarms in case of system malfunctions. This remote monitoring and alarm system enhances the safety and reliability of the energy storage system and facilitates its management and usage.
Screenshots
Verdict
The clearest difference is update cadence: Sunboost at every 2 months against The Turnkeeper's every 5 months. Sunboost also leads on iOS requirement (11.0 vs 16.4). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
The Turnkeeper ships an update every 5 months, Sunboost every 2 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | The Turnkeeper | Sunboost |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (30 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 30 — better | — |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Geospike Pty Ltd | 深圳市轻子进程科技有限公司广州分公司 |
In-app purchases
The Turnkeeper
No in-app purchases
Sunboost
No in-app purchases









