Comparison

Sudoku Doku vs Objective Master

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

Head to head
About

Sudoku Doku

Engage your mind with a modern take on classic logic number puzzles. Offers multiple difficulty levels, smart hints, and a distraction-free design to help you focus and improve your skills. Enjoy daily challenges and track your progress.

Highlights
  • Multiple difficulty levels (Easy, Medium, Hard, Expert)
  • Smart hints and error highlighting
  • Notes mode (pencil marks)
  • Daily challenges and achievements
  • Offline play capability
  • Clean, distraction-free design
Features
Read full description

Unwind, focus, and boost your brain power with Sudoku Doku, the clean and modern take on the classic number puzzle game. Whether you’re a beginner or a Sudoku master, you’ll find the perfect challenge waiting for you. What is Sudoku? Sudoku is a simple yet addictive logic puzzle: Fill every row, column and 3x3 box with numbers from 1 to 9 – with no repeats. No math, no guesswork, just pure logic and fun. Why you’ll love Sudoku Doku Multiple difficulty levels – Easy, Medium, Hard & Expert so everyone can play. Smart hints – Not just the answer. Learn why a move works and improve your skills. Notes mode (pencil marks) – Keep track of possible numbers like on real paper. Auto-check & error highlights – Turn them on to learn or off for a real challenge. Undo & redo – Made a mistake? Go back as many steps as you want. Clean, distraction-free design – Big cells, smooth controls, no clutter. Daily & Long-Term Challenges Daily challenge – Play a new puzzle every day and collect streaks. Achievements & stats – Track your fastest times, win streaks and best difficulties. Leaderboard – See how you stack up against other players around the world. Play Anytime, Anywhere Offline play – No Wi-Fi? No problem. Play Sudoku Doku on the go. Save & resume – Pick up right where you left off, even if you close the app. Number styles & grid options – Choose the look that’s easiest on your eyes. One-touch controls – Tap, hold, or use number-first selection – your choice. How to Play Choose a difficulty level. Tap a cell and pick a number from 1 to 9. Use notes to track possibilities. Complete the board so every row, column and 3x3 box has all digits 1 through 9 with no repeats. If you enjoy brain teasers, number puzzles, crosswords or logic games, Sudoku Doku will become your new daily habit. Download Sudoku Doku now and give your brain a fun workout every day!

About

Objective Master

Features
Read full description

Three puzzle games. Hundreds of brain-teasing levels. Objective Master combines the complete Objective series into one ultimate puzzle collection. Challenge yourself with three unique puzzle experiences, each offering its own mechanics, strategy, and progression. Whether you’re drawing paths, sliding blocks, or connecting colors, every puzzle is designed to sharpen your logic and keep your mind engaged. With vibrant visuals, satisfying gameplay, and hundreds of handcrafted levels, there’s always a new challenge waiting. Three Game Modes Objective: Fill Swipe from the starting blocks to create the required shapes and fill the entire board. Objective: Free Slide blocks to clear the way and guide the main block to the exit. Objective: Link Connect matching colored points by drawing paths across the board without blocking yourself. Features - 3 complete puzzle games in one app - Over 800 handcrafted levels - Three unique puzzle mechanics - Gradually increasing difficulty - Bright, colorful visuals - Smooth, satisfying gameplay - Designed to challenge your logic and cognition Whether you’re a casual player looking to relax or a puzzle enthusiast seeking a real challenge, Objective Master delivers hundreds of hours of rewarding gameplay in one complete collection.

Screenshots

Sudoku Doku4 screens
Objective Master4 screens

Verdict

The call

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

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Sudoku Doku versus Objective Master: the parameters behind the verdict, then further details
ParameterSudoku DokuObjective Master
PriceFreeFree
Rating1.1 (8 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 3 weeks—
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size159 MB92 MB
Age rating12+4+
DeveloperApperfunRed Lion Labs

In-app purchases

None

Sudoku Doku

No in-app purchases

None

Objective Master

No in-app purchases

Questions

Is Sudoku Doku free?
Sudoku Doku is free to download, with no in-app purchases.
Is Objective Master free?
Objective Master is free to download, with no in-app purchases.
Do Sudoku Doku or Objective Master have ads?
Both Sudoku Doku and Objective Master show ads.

Other comparisons