Comparison

Chess Notation Lab vs Sudoku

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

Head to head
About

Chess Notation Lab

Master chess board coordinates and piece movement with this training app. Improve your ability to visualize moves, read notation, and understand square colors. Designed to enhance your chess calculations and potentially boost your rating.

Highlights
  • Identify squares by coordinate
  • Fluid piece movement visualization
  • Translate moves to notation
  • Identify square color
  • Orient on the board
  • Speed up calculation
  • Blind chess practice
Features
Read full description

Welcome to Chess Notation Lab! Are you struggling to identify squares, remember sequences, and follow chess notations? Do you have trouble visualizing Bishop diagonals? Or Knight jumps? Or worse, mapping the available moves for the Queen to get/avoid a deadly fork? This training app is designed to end this misery. There are 2 training modes, each with 5 unique training sessions carefully designed to dramatically uplift your mastery over chess squares and fluid piece movement. A small dose of regular practice will empower you to: 1. Spot a square as soon as you hear or see its coordinate 2. Fluidly move any piece around the board, even without a board 3. Translate a sequence of moves into their notation with ease 4. Immediately identify the color of a square 5. Stay oriented regardless of whether you're white or black 6. Follow along with chess tutorials, books, or discussions at ease and comfort 7. Massively speed up your thought process on any calculation 8. Finally, start playing blind chess! Don't be surprised if you experience a sudden surge in rating simply by improving your square reading skills. The free version is already effective enough to significantly boost your chess career. However, if you want to support me and get the full version, first of all, thanks!! And then just a one-time purchase will unlock: - Longer time controls - Untimed practice mode - Milestones and Achievements and - Complete visualization of your records - Compete with friends over the complete leaderboards There will be no ads, neither in the full version nor in the free one. Just a beautiful and satisfyingly addictive path to mastering squares. The level of comfort you will feel about talking, reading or even thinking about chess is, believe me, just priceless. Caution: If you are rated below 1500, this app may be less useful for you, and tactics training should be prioritized.

About

Sudoku

Features
Read full description

Welcome to Sudoku – Brain Games, the ultimate way to relax and challenge your mind! Whether you’re a beginner or a Sudoku master, this app offers thousands of carefully crafted puzzles designed to boost memory, focus, and problem-solving skills. Sudoku – Brain Games features multiple difficulty levels, helpful hints, and smart notes to guide you when you’re stuck. Enjoy a clean, modern design with smooth controls that make solving each puzzle simple and satisfying. Track your progress, compete with friends, and train your brain every day. With Sudoku – Brain Games, you’ll discover how daily logic practice can reduce stress and improve concentration. Play offline, customize themes, and take advantage of daily challenges to keep your mind sharp. If you love logic puzzles, brain teasers, or number challenges, Sudoku – Brain Games is the perfect companion for your daily mental workout. Download now and start your journey toward a smarter, calmer mind!

Screenshots

Chess Notation Lab4 screens
Sudoku2 screens

Verdict

The call

The clearest difference is iOS requirement: Sudoku at 15.6 against Chess Notation Lab's 18.6. 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. Chess Notation Lab sells 1 one-off in-app purchase and Sudoku sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Chess Notation Lab versus Sudoku: the parameters behind the verdict, then further details
ParameterChess Notation LabSudoku
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.6 — better
Further details — not scored
Size26 MB3 MB
Age rating4+4+
DeveloperNishat MajidOmar Ahmed

In-app purchases

1 purchases

Chess Notation Lab

One-time1
  • Full Version$9.99
2 purchases

Sudoku

Subscriptions2
  • Pro Access (Weekly)$4.997 Days
  • Pro Access (Yearly)$49.991 Year

Questions

Is Chess Notation Lab free?
Chess Notation Lab is free to download, with in-app purchases available.
Is Sudoku free?
Sudoku is free to download, with in-app purchases available.
Do Chess Notation Lab or Sudoku have ads?
Neither Chess Notation Lab nor Sudoku shows ads.

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