Comparison

Sudoku.com vs kerf

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

Head to head
About

Sudoku.com

Engage your mind with a classic number puzzle game. Offers thousands of puzzles for all skill levels, from beginner to expert. Features tools like hints and auto-check to aid your gameplay and track your progress.

Highlights
  • Thousands of classic Sudoku puzzles
  • Daily Challenges and Seasonal Events
  • Hints and Auto-Check features
  • Note-taking for possible numbers
  • Progress tracking with statistics
  • Highlighting duplicates
Features
Read full description

Have fun and train your brain with one of the most downloaded sudoku apps in the AppStore! Millions of people play sudoku daily and it’s truly a game for everyone! The Sudoku.com app has thousands of classic sudoku puzzles to help you keep your brain active, unwind from stress or relax. Install to play now! Classic sudoku for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass the time in a pleasant way! Get a short stimulating break and clear your head with Sudoku.com. Take your favorite game with you wherever you go. Playing Sudoku.com on mobile is as good as with a pencil and paper. Choose any level you like. Play easier levels to challenge your brain, or try expert levels to give your mind a real workout. Sudoku.com has some features that make the game easier for you: hints, auto-check, and highlighted duplicates. You can use them, or complete the challenge without their help – it's totally up to you! What's more, in Sudoku.com each puzzle has one solution. Get an amazing sudoku experience: · Take notes to keep track of possible numbers. Every time you fill in a cell, your notes are automatically updated! · Hints can guide you when you get stuck · Complete Daily Challenges and get unique trophies · Take part in Seasonal Events and win unique medals · View Statistics and track your progress · Challenge yourself and figure out your mistakes, or enable Auto-Check to see your mistakes as you go · Highlight duplicates to avoid repeating numbers in a row, column or block · Express yourself with funny ninja stickers for iMessage! Challenge your brain with Sudoku.com anywhere, anytime!

About

kerf

Features
Read full description

kerf is a stacking game stripped to one decision: when to let go. A block slides across the screen. You tap. Whatever hangs over the edge is cut away and falls, and the tower gets that much narrower. Land it dead center and you get the width back, the combo climbs, and the score multiplies. There is nothing else to learn, and no way to blame anything but your own timing. FIVE WAYS TO PLAY Classic — endless. One miss ends the run. Daily — one seeded attempt a day, the same tower for everyone, a fresh leaderboard every midnight UTC. Zen — a miss costs you width, not the run. Stack until the block is a sliver. Precision — the first imperfect landing ends it. Four points of tolerance, nothing more. Sprint — sixty seconds, starting fast and getting faster. BUILT TO BE QUIET No ads. No energy meters, no coins, no wheel to spin, no notification asking where you have been. Nothing in the game is for sale that touches how it plays. The whole thing is drawn, not downloaded: flat ink on paper, one accent color, no rounded corners anywhere. Sound is synthesized live from a pentatonic scale, so every landing is a note in key and a broken combo is the one note that isn't. Light and dark themes both ship finished, not inverted as an afterthought. Plays entirely offline. No account required. GAME CENTER Five leaderboards — one per mode, with Daily resetting every day — and ten achievements worth 640 points. Sign in if you want them; the game never waits on it and never nags. MAKE IT YOURS Six accent tones, four app icons and a share card, free. Change the accent and the tower changes with it. KERF COMPLETE — ONE PURCHASE A single non-consumable unlock, no subscription: · 18 accent tones instead of 6 · 8 app icons instead of 4 · 4 synthesized sound packs instead of 1 · 4 block surface textures · 5 share card themes · Zen, Precision and Sprint, permanently · The full daily archive — every past day, playable for practice Every premium mode is playable once for free before you decide. Family Sharing is on. kerf is the sliver of wood a saw takes out of a cut. It is the part you lose to be precise, which is the entire game.

Screenshots

Sudoku.com4 screens
kerf4 screens

Verdict

The call

The clearest difference is ads: kerf at none against Sudoku.com's shown. Sudoku.com's advantage is chart position (#6 vs unranked) and device support (3 vs 1). On price and in-app purchases 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. Sudoku.com sells 1 one-off in-app purchase and kerf sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard4 real differences · 7 level
Sudoku.com versus kerf: the parameters behind the verdict, then further details
ParameterSudoku.comkerf
PriceFreeFree
Rating4.8 (1.9M ratings) — better—
Positive reviews31.0% of reviews—
Number of ratings1.9M — better—
Update frequencyEvery 3 weeks—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#6 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size255 MB8 MB
Age rating12+4+
DeveloperEasybrain LtdYakup Arslan

Bugs and requests

Sudoku.com

Reported bugs

3 issues
  • Ads causing app to crash or freeze
  • Incorrect number detection and penalty system
  • Saved progress not syncing across devices

Requested features

4 requests
  • Ability to reset puzzle progress
  • More diverse puzzle types beyond standard Sudoku
  • Multiplayer or competitive modes
  • Customizable note-taking tools

kerf

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Sudoku.com

One-time1
  • Sudoku.com No Ads$14.99
1 purchases

kerf

One-time1
  • kerf Complete$4.99

Questions

Is Sudoku.com free?
Sudoku.com is free to download, with in-app purchases available.
Is kerf free?
kerf is free to download, with in-app purchases available.
Do Sudoku.com or kerf have ads?
Sudoku.com shows ads; kerf does not.

Other comparisons