Comparison

Suduku Sun vs Killer Sudoku

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

Head to head
About

Suduku Sun

Features
Read full description

Sudoku Sun is a calm, large-print Sudoku puzzle app designed for comfortable play on iPhone and iPad. Whether you are new to number puzzles or a longtime logic game fan, every grid adjusts to your pace so each solve feels just right. Play unlimited Sudoku puzzles with oversized numbers, a clear board, and a simple tap-to-play number pad. No tiny text. No clutter. Just relaxing brain training you can enjoy at your own speed. ADAPTIVE SUDOKU THAT GROWS WITH YOU Sudoku Sun watches how you solve (your time, mistakes, and hints), then picks the next puzzle to match your skill. Faster days gently raise the challenge. Tough days ease up. Levels never run out, so you always have a fresh logic puzzle waiting. LARGE PRINT AND ACCESSIBLE DESIGN Built for easy reading and comfortable tapping. Sudoku Sun supports Dynamic Type, Bold Text, VoiceOver, and Reduce Motion. Every square, button, and number is sized for clarity so you can focus on the puzzle, not the interface. EASY, MEDIUM, HARD, AND EXPERT Choose your preferred difficulty or let adaptive mode find the sweet spot. Each Sudoku puzzle is uniquely generated with a single correct solution, never the same catalog twice. GENTLE GAMEPLAY, NO PRESSURE Mistakes are highlighted softly. Wrong numbers clear on their own. Use Notes to pencil in possibilities. Undo a move anytime. Up to three hints per puzzle when you need a nudge. No harsh penalties, only encouragement. STREAKS, XP, STARS, AND ACHIEVEMENTS Stay motivated with daily streaks, experience points, star ratings, and unlockable achievements. Follow your progress along a blooming garden path as you level up from Sunny Meadow to Summit View. AUTO-SAVE AND CONTINUE ANYTIME Life happens. Sudoku Sun saves your puzzle automatically so you can close the app and pick up exactly where you left off. OPTIONAL DAILY REMINDERS Turn on gentle notifications for a daily Sudoku puzzle, streak protection, comeback nudges, and level celebrations. Fully opt-in. At most one friendly reminder per day. CALM COLORS AND SMOOTH FEEDBACK Soft animations, gentle haptics, and a warm visual style make every session feel peaceful. Challenge mode is available when you want to push yourself. WHY PLAYERS LOVE SUDOKU SUN Sudoku is one of the best brain games for memory, focus, and logic. Sudoku Sun makes classic number puzzles feel welcoming, not frustrating, ideal for seniors, beginners, and anyone who wants a relaxing daily puzzle habit without ads cluttering the experience. Download Sudoku Sun today and enjoy calm, adaptive Sudoku puzzles that bloom with you.

About

Killer Sudoku

Features
Read full description

Killer Sudoku: Quick Notes gets you to the logic faster. Fill every valid candidate in one tap without revealing the solution, then solve calm, adaptive Killer Sudoku grids at your pace. SOLVE AT YOUR PACE Choose from four difficulty levels, from a gentle introduction to a true Expert challenge. Difficulty adapts as you complete puzzles. ALL CANDIDATES IN ONE TAP Automatically add every valid candidate as a note. The app never reveals the answer โ€” it simply removes the routine setup so you can focus on logic. QUICK INPUT Select a digit first, then place it across the grid with fast, precise taps. Quick input and note mode can be used together. EXPLORE DIFFERENT MOVES Save the exact board state as a Branch, try an idea, and return to it whenever you want. CHALLENGE FRIENDS Share a spoiler-free code and let a friend solve the exact same difficulty, cages, and starting grid. No answers are included. SHARE YOUR RESULT Create a polished result card with your time, mistakes, hints, streak, and challenge code using the iOS system share sheet. BUILT FOR FOCUS A calm, modern interface, clear cage sums, candidate highlighting, undo and redo, hints, statistics, themes, and automatic progress saving. Killer Sudoku: Quick Notes works offline and does not collect personal data.

Screenshots

Suduku Sun4 screens
Killer Sudoku3 screens

Verdict

The call

Suduku Sun and Killer Sudoku are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

ScorecardNo meaningful differences
Suduku Sun versus Killer Sudoku: the parameters behind the verdict, then further details
ParameterSuduku SunKiller Sudoku
PriceFreeFree
Update frequencyโ€”Fortnightly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details โ€” not scored
Size4 MB4 MB
Age rating4+4+
DeveloperJaxily LLCDmitrii Kurbakov

In-app purchases

None

Suduku Sun

No in-app purchases

None

Killer Sudoku

No in-app purchases

Questions

Is Suduku Sun free?
Suduku Sun is free to download, with no in-app purchases.
Is Killer Sudoku free?
Killer Sudoku is free to download, with no in-app purchases.
Do Suduku Sun or Killer Sudoku have ads?
Neither Suduku Sun nor Killer Sudoku shows ads.

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