Comparison

Chess Puzzles vs SudokuOS

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

Head to head
About

Chess Puzzles

Enhance your chess tactics with over 100,000 offline puzzles. Train anytime, anywhere, regardless of internet access. Features adaptive difficulty, detailed stats, and various puzzle themes for all skill levels.

Highlights
  • 100K+ chess tactics and puzzles
  • Fully offline functionality
  • Adaptive difficulty adjustment
  • Detailed progress tracking
  • Multiple puzzle themes
  • Smart hint system
  • Customizable board themes
Features
Read full description

Sharpen your chess skills Offline with 100,000+ chess puzzles! No Wi-Fi needed, train tactics anytime, anywhere. Perfect for beginners to masters! OffChess offers a massive collection of 100K+ offline chess puzzles designed to challenge and improve your tactical play. Features of OffChess: 1. 100K+ Chess Tactics & Chess Puzzles – Endless tactical challenges, from beginner to master level. 2. Fully Offline – No Wi-Fi? No problem! Solve puzzles anywhere. 3. Adaptive Difficulty – Chess puzzles adjust to your skill level as you improve. 4. Detailed Stats – Track your chess progress, puzzle streaks, and success rate. 5. Multiple Modes – Practice puzzles with specific themes like Checkmate, Mate in 1 chess puzzles, Mate in 2 puzzles, Mate in 3 puzzles, openings, tactics (forks, pins, sacrifices, pawn promotions, zugzwang), and more. 6. Smart Hints – Stuck? Get a nudge in the right direction. 7. Beautiful Themes – Customize your chess board for a personalized experience. 8. Real Chess Games – All chess puzzles are taken from real chess games that you can browse up to move one. 9. Openings - Get chess puzzles that occur in real chess games with the opening you choose like French, Caro-Kann, Ruy Lopez etc. 10. No ads & privacy friendly chess app 11. Rating - Get your chess rating up by solving puzzles, check stats on how many puzzles you have solved and what's the longest streak you have made. Chess is one of the most popular board and strategy game in the world and you can train chess offline on offChess app with so many puzzles to pick from. For All Levels – Whether you're a beginner or a seasoned chess player, there’s always a new chess tactic for you to try. Train smarter, play better with offline and free chess puzzles on OffChess — rush and download today!

About

SudokuOS

Solve Sudoku puzzles with five difficulty levels on your iPhone or iPad. Utilize notes, candidates, hints, and an erase function. Track your progress with ratings and charts, and enjoy automatic saving for uninterrupted gameplay.

Highlights
  • Five difficulty levels
  • Notes and candidate filling
  • Hint and erase functions
  • Progress tracking and rating
  • Automatic game saving
  • Customizable accent colors and haptics
Features
Read full description

Play Sudoku on your iPhone or iPad. Choose from five difficulty levels and solve each puzzle at your own pace. Use notes, fill in candidates for individual cells, get help from a hint or erase an entry. After completing a puzzle, view your rating and progress chart. Settings shows your solved puzzle count and best time. Your current game is saved automatically on your device, so you can close the app and continue later. Choose from six accent colours and adjust the haptic feedback setting. No internet connection or account is needed to play. The app contains no ads, in-app purchases or subscriptions.

Screenshots

Chess Puzzles4 screens
SudokuOS4 screens

Verdict

The call

The clearest difference is in-app purchases: SudokuOS at none against Chess Puzzles's 1. SudokuOS also leads on update cadence (every 4 days vs weekly). Chess Puzzles's advantage is review sentiment (91% vs 71%). On price, ads, device support and iOS requirement 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 Puzzles sells 1 one-off in-app purchase. SudokuOS asks for nothing beyond the download.

UpkeepUpdate frequency

Chess Puzzles ships an update weekly, SudokuOS every 4 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
Chess Puzzles versus SudokuOS: the parameters behind the verdict, then further details
ParameterChess PuzzlesSudokuOS
PriceFreeFree
Rating5.0 (39 ratings) — better—
Positive reviews91.3% of reviews — better71.4% of reviews
Number of ratings39 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size52 MB10 MB
Age rating4+4+
DeveloperAvadhesh BhunwaliyaSeidelapps

Customer experience

Chess Puzzles

All ratings37 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews23 reviews
Positive91.3%
Neutral4.3%
Negative4.3%

SudokuOS

Written reviews7 reviews
Positive71.4%
Neutral28.6%
Negative0.0%

In-app purchases

1 purchases

Chess Puzzles

One-time1
  • OffChess Unlimited$3.99
None

SudokuOS

No in-app purchases

Questions

Is Chess Puzzles free?
Chess Puzzles is free to download, with in-app purchases available.
Is SudokuOS free?
SudokuOS is free to download, with no in-app purchases.
Do Chess Puzzles or SudokuOS have ads?
Neither Chess Puzzles nor SudokuOS shows ads.
Which is updated more often, Chess Puzzles or SudokuOS?
Chess Puzzles ships an update weekly, and SudokuOS every 4 days. Most recently, Chess Puzzles was updated on November 8, 2026 and SudokuOS on November 10, 2026.

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