Comparison

Chess Time vs sudoku

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

Head to head
About

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.

Highlights
  • Online correspondence chess
  • Play with friends
  • Global player matchmaking
  • In-game chat
  • Customizable chess sets and themes
  • Auto-calculated ELO rating
  • PGN export
Read full description

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

About

sudoku

Features
Read full description

Enjoy 100 stages across 4 difficulty levels: EASY, NORMAL, HARD, and EXPERT. You can also play unlimited random puzzles beyond the stage mode.

Screenshots

Chess Time4 screens
sudoku4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Chess Time versus sudoku: the parameters behind the verdict, then further details
ParameterChess Timesudoku
PriceFreeFree
Rating4.7 (1.7K ratings) — better—
Positive reviews86.2% of reviews—
Number of ratings1.7K — better—
Update frequencyEvery 10 daysEvery 9 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size42 MB139 MB
Age rating12+4+
DeveloperHaptic Apps LLCHansang 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

3 purchases

Chess Time

Subscriptions2
  • Chess Time Premium$1.991 Month
  • Chess Time Premium - Annual$17.991 Year
One-time1
  • IOS Chess Time Pro$4.99
None

sudoku

No in-app purchases

Questions

Is Chess Time free?
Chess Time is free to download, with in-app purchases available.
Is sudoku free?
sudoku is free to download, with no in-app purchases.
Do Chess Time or sudoku have ads?
Both Chess Time and sudoku show ads.
Which is updated more often, Chess Time or sudoku?
Chess Time ships an update every 10 days, and sudoku every 9 days. Most recently, Chess Time was updated on October 21, 2026 and sudoku on October 14, 2026.

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