Chess Time vs sudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chess Time
Engage in online chess matches with friends or players worldwide. This app supports correspondence play with extended move times and offers features like in-game chat and customizable themes. Track your progress with an auto-calculated ELO rating.
- Online correspondence chess
- Play with friends
- Global player matchmaking
- In-game chat
- Customizable chess sets and themes
- Auto-calculated ELO rating
- PGN export
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Free online chess - Invite your friends or play against anyone in the world. Chess Time is a full featured online correspondence chess app allowing a player up to multiple days to make a move. Create and play multiple at length chess games. Chess Time features: A global audience of real chess players. Invite friends to play online games. In-game chat. -- Play chess against friends that have other mobile devices. Multiple Chess sets and themes. Play un-rated games to train without affecting your score. -- Auto-calculated ELO chess rating. Export completed games as PGN. Chess Time will send a notification for each move and a reminder for you to move. We recommend enabling notifications. ——————————— -- SUBSCRIPTIONS AVAILABLE --- PREMIUM Membership Subscription Options: - Monthly Premium Subscription - Yearly Premium Subscription Premium Membership features: * No Ads * 75 Simultaneous Active Games — Additional 25! * Compete with Premium Members * Exclusive Premium Leaderboard * Daily PGN Emails — Completed game PGNs are emailed daily! Perfect for players studying their games. — TERMS & DETAILS — Chess Time Premium features are only guaranteed on up-to-date iOS devices. Payment will be charged to your iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged the same amount for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Any unused portion of a Free Trial, if offered, is forfeited when you buy a subscription. Prices may vary by location. Terms of Use: http://chesstimeapp.com/Terms-and-Conditions.php Privacy Policy: http://chesstimeapp.com/Privacy-Policy.php
sudoku
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Enjoy 100 stages across 4 difficulty levels: EASY, NORMAL, HARD, and EXPERT. You can also play unlimited random puzzles beyond the stage mode.
Screenshots
Verdict
The clearest difference is in-app purchases: sudoku at none against Chess Time's 3. On price, update cadence, ads 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. Chess Time sells 3 in-app purchases, starting at $1.99 per month. sudoku asks for nothing beyond the download.
Chess Time ships an update every 10 days, sudoku every 9 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.
| Parameter | Chess Time | sudoku |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.7K ratings) — better | — |
| Positive reviews | 86.2% of reviews | — |
| Number of ratings | 1.7K — better | — |
| Update frequency | Every 10 days | Every 9 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 139 MB |
| Age rating | 12+ | 4+ |
| Developer | Haptic Apps LLC | Hansang Oh |
Bugs and requests
Chess Time
Reported bugs
3 issues- Game incorrectly declaring draws on checkmate
- Inability to castle or move pieces in certain situations
- Notification issues across different devices
Requested features
5 requests- Ability to invite friends to watch ongoing games
- Option to disable move analysis for rated games
- Faster move processing and real-time gameplay
- More diverse chess piece and board designs
- In-app purchase to remove ads permanently
sudoku
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Chess Time
- Chess Time Premium$1.991 Month
- Chess Time Premium - Annual$17.991 Year
- IOS Chess Time Pro$4.99
sudoku
No in-app purchases









