Comparison

One Sudoku vs Math Fast Calculation Game

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

Head to head
About

One Sudoku

This app offers a vast collection of Sudoku puzzles with 11 unique types and adjustable difficulty. Engage in special events, compare scores globally, and unlock achievements. A premium club membership provides offline play and access to all puzzle variations without ads.

Highlights
  • 11 Sudoku puzzle types
  • Selectable difficulty levels
  • Special themed events
  • Global player comparisons
  • Unlockable achievements
  • Offline play with club membership
Features
Read full description

One Sudoku is the ultimate Sudoku app for your device. It features 11 varieties of Sudoku puzzle types in different sizes* with selectable difficulty levels. Thanks to different input methods, you can solve Sudokus the way it feels best for you. Special events that take place over the course of a year unlock new, exciting puzzle challenges. * All Sudokus featured in this app are 100 % unique - they are created exclusively for One Sudoku * One Sudoku includes an infinite number of Sudokus so the fun will never end * Compare your puzzle-solving skills with other players from all over the world * Unlock achievements * Themed Sudoku events The following puzzles types are included: * Classic (4x4, 9x9, 16x16) * Chaos (7x7 to 12x12) * Stair Steps * Mathdoku (3x3 to 6x6) * Window Club members also get access to: * Jigsaw (7x7, 9x9, 11x11) * Kropki (4x4 and 9x9) * Even / Odd * X-Sudoku * Comparison * Killer Play as many Sudokus as you want. Or join the „One Sudoku Club“ and unlock offline games, all puzzle types, and all difficulties without any ads. Download One Sudoku today - unlimited Sudoku solving fun awaits. *) Note: sizes from 10x10 and above are only available on devices with a larger screen (i.E. iPads). Terms of Use: https://onesudoku.app/terms

About

Math Fast Calculation Game

Features
Read full description

This app, "Math Fast Calculating Mental Brain Training," is designed to enhance mental math abilities across various mathematical operations. It offers a user-friendly interface where you can engage in various challenges to boost and improve your brainpower. The app features a comprehensive selection of math operations for different skill levels and learning needs. You can practice fundamental arithmetic operations like addition, subtraction, multiplication, and division. Beyond the basics, the app introduces more advanced concepts such as squaring, exponentiation, and nth roots, providing a robust platform for improving your numerical fluency. For those looking to tackle more complex problems, the app includes challenges in percentages, factorials, cube roots, and base-10 logarithms. It also delves into algebraic thinking with linear equations involving one or two variables, and even incorporates absolute value and trigonometry exercises to broaden your mathematical scope. The game includes a multiplayer mode, allowing for competitive play, as well as a single-player mode for individual practice and improvement. It features a time-based challenge system, where you need to answer questions quickly, with a timer indicating your remaining time. Your performance is tracked with a score, and you receive immediate feedback on correct or incorrect answers. Visual cues like a progress bar help you monitor your time, changing color to indicate urgency. The app keeps track of your statistics, allowing you to monitor your highest scores across different operations, game modes, and difficulty levels, from easy to hard, and a "no time" option. You can also personalize your experience by setting a nickname and adjusting various settings within the app. The app provides options to share it with friends, rate it on the App Store, and access privacy policies and developer information. With its diverse operations and engaging gameplay, "Math Fast Calculating Mental Brain Training" aims to make improving your mathematical skills both effective and enjoyable. Operation types: - addition - subtraction - multiplication - division - squaring - exponentiation - nth root - percentage - linear equation one variable - linear equation with two variables - factorial - cube root - logarithm - absolute value

Screenshots

One Sudoku4 screens
Math Fast Calculation Game4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Fast Calculation Game at none against One Sudoku's 3. Math Fast Calculation Game also leads on update cadence (daily vs every 3 months) and iOS requirement (12.0 vs 14.0). On price, ads 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. One Sudoku sells 3 in-app purchases, starting at $2.49 per month. Math Fast Calculation Game asks for nothing beyond the download.

UpkeepUpdate frequency

One Sudoku ships an update every 3 months, Math Fast Calculation Game daily. Both last shipped on October 8, 2026.

Scorecard3 real differences · 7 level
One Sudoku versus Math Fast Calculation Game: the parameters behind the verdict, then further details
ParameterOne SudokuMath Fast Calculation Game
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 monthsDaily — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size31 MB43 MB
Age rating4+4+
DeveloperCornelius BehrendIvan Rancic

In-app purchases

3 purchases

One Sudoku

Subscriptions3
  • One Sudoku Club: Monthly$2.491 Month
  • One Sudoku Club Promotion$6.993 Months
  • One Sudoku Club: Yearly$22.991 Year
None

Math Fast Calculation Game

No in-app purchases

Questions

Is One Sudoku free?
One Sudoku is free to download, with in-app purchases available.
Is Math Fast Calculation Game free?
Math Fast Calculation Game is free to download, with no in-app purchases.
Do One Sudoku or Math Fast Calculation Game have ads?
Both One Sudoku and Math Fast Calculation Game show ads.
Which is updated more often, One Sudoku or Math Fast Calculation Game?
One Sudoku ships an update every 3 months, and Math Fast Calculation Game daily. Most recently, One Sudoku was updated on October 8, 2026 and Math Fast Calculation Game on October 8, 2026.

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