Comparison

Samurai Sudoku vs GravityGrid

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

Head to head
About

Samurai Sudoku

Experience a unique Sudoku challenge with five interconnected grids. Apply standard Sudoku rules to each 9x9 grid, filling numbers to ensure each row, column, and region has one of each digit. Offers multiple difficulty levels and puzzle variations.

Highlights
  • Five overlapping Sudoku grids
  • Five difficulty levels
  • Various Sudoku types (Gattai, Butterfly)
  • Hint feature with conflict checking
  • Highlight same numbers
  • Autosave progress
  • Record best completion times
Features
Read full description

Samurai Sudoku puzzle contains five overlapping sudoku grids. The basic sudoku rules apply to each 9 x 9 grid. Basic Rule: Fill numbers in the board such that every row, column and region contains one occurrence of each number. **** Samurai Sudoku features **** # Content - 5 difficulty levels - Various types of Sudokus, including Gattai (3 overlapping sudoku grids), Butterfly (4 overlapping sudoku grids), etc. # Features - "Hint" auto fills the board with memo that has no direct conflicts with other numbers - Highlight same numbers as you select a number on board - Autosave the process of unfinished levels - Record best completion time for each level # Challenge - Game Center Achievements - Try to complete as many levels as possible If you have encountered any problem, please send an email to brightskygames@me.com

About

GravityGrid

Features
Read full description

Swipe. Match. Master Gravity. GravityGrid is a puzzle game that puts a fresh spin on tile-matching. Swipe in any direction or rotate the grid and watch as gravity pulls your tiles into place. Match identical tiles to merge them and build your score — but think carefully, because every move counts! SIMPLE TO LEARN • Swipe up, down, left, or right, or rotate the grid • Matching tiles merge automatically • No complicated rules — just pure puzzle fun HARD TO MASTER • Plan your moves strategically • Build chain reactions for combo multipliers • Chase ever-higher scores COMPETE WITH FRIENDS • Game Center leaderboards • Compare your high scores globally • Track your personal bests Whether you have 2 minutes or 2 hours, GravityGrid is the perfect puzzle companion. Simple enough to pick up instantly, hard enough to keep you coming back for more. Can you beat your high score? ________ https://danielhouben.nl/gravitygrid/privacy/ https://danielhouben.nl/gravitygrid/terms/

Screenshots

Samurai Sudoku4 screens
GravityGrid4 screens

Verdict

The call

The clearest difference is update cadence: GravityGrid at every 2 days against Samurai Sudoku's every 2 months. Samurai Sudoku's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases 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. Samurai Sudoku sells 24 one-off in-app purchases and GravityGrid sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Samurai Sudoku ships an update every 2 months, GravityGrid every 2 days. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Samurai Sudoku versus GravityGrid: the parameters behind the verdict, then further details
ParameterSamurai SudokuGravityGrid
PriceFreeFree
Rating4.6 (383 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings383 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size23 MB5 MB
Age rating4+4+
DeveloperStanley LamDaniel Houben

Bugs and requests

Samurai Sudoku

Reported bugs

10 issues
  • App crashes when watching required videos
  • Weekly puzzle videos fail to load
  • Game freezes mid-puzzle with no progress saved
  • Purchased puzzles disappear after app updates or reinstalls
  • Ad screens block gameplay with no visible close button
Show 5 more
  • Unresponsive number input requiring multiple taps
  • App locks up permanently in certain situations
  • Video orientation mismatch on horizontal device orientation
  • Occasional glitches requiring app restart
  • Multiple solutions recognized as single correct answer

Requested features

10 requests
  • Auto-fill feature for candidate notes/pencil marks
  • Pause button for games in progress
  • Left-handed mode option
  • Highlight vertical and horizontal lines for easier solving
  • Ability to create and submit custom puzzles
Show 5 more
  • Larger puzzle sizes and more complex variations
  • Clue system that provides one hint at a time
  • Screen lock to prevent auto-dimming during gameplay
  • Bundled subscription option instead of individual pack purchases
  • Auto-generate puzzles instead of hard-coded content

GravityGrid

Not enough reviews yet to summarise bugs or requests.

In-app purchases

24 purchases

Samurai Sudoku

One-time24
  • Diagonal Samurai Pack$1.99
  • Samurai Beginner Pack$1.99
  • Samurai Median Pack$1.99
Show 21 more
  • Samurai Advanced Pack$1.99
  • Samurai Expert Pack$1.99
  • Samurai Beginner Pack 2$1.99
  • Samurai Advanced Pack 2$1.99
  • Samurai Basic Pack$1.99
  • Samurai Gattai-3 Pack$1.99
  • Butterfly Sudoku$1.99
  • Flower Sudoku$1.99
  • Gattai-3 Diagonal Pack$1.99
  • Sudo-Kurve$1.99
  • Twodoku$1.99
  • Tridoku$1.99
  • Samurai Median Pack 2$1.99
  • Jigsaw Samurai Pack$2.99
  • Anti Diagonal Samurai Pack$2.99
  • Cross Sudoku$2.99
  • Gattai-3 Anti Diagonal Pack$2.99
  • Samurai Sudoku$3.99
  • Sohei Sudoku$3.99
  • 30 Days of All Puzzles$5.99
  • 90 Days of All Puzzles$14.99
1 purchases

GravityGrid

One-time1
  • Remove Ads$2.99

Questions

Is Samurai Sudoku free?
Samurai Sudoku is free to download, with in-app purchases available.
Is GravityGrid free?
GravityGrid is free to download, with in-app purchases available.
Do Samurai Sudoku or GravityGrid have ads?
Both Samurai Sudoku and GravityGrid show ads.
Which is updated more often, Samurai Sudoku or GravityGrid?
Samurai Sudoku ships an update every 2 months, and GravityGrid every 2 days. Most recently, Samurai Sudoku was updated on October 23, 2026 and GravityGrid on October 16, 2026.

Other comparisons