Comparison

SudoDuo vs Squid Sudoku

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

Head to head
About

SudoDuo

Features
Read full description

Your next Sudoku could be a group effort. Looking for a thoughtful solo challenge, a puzzle to solve together, or a race against your friends? Choose how you want to play and get started with SudoDuo. Play your way: - Solo: take your time, from easy to expert. - Cooperative: think together on the same grid, with up to four players. - Competitive: solve your own grid and see who finishes first. - Teams: solve the grid with your teammates and beat the other teams, 1 vs 2, 2 vs 2 or 1 vs 1 vs 2. Want to get better? Learn 16 strategies, from the simplest to the most advanced. Each one is explained with an illustrated example, then put into practice in five guided challenges built from real grids. Solve three to unlock the next one. Thousands of puzzles are waiting. Add possible numbers to cells to track your reasoning, undo or redo moves, and spot matching or conflicting numbers at a glance. You can also automatically remove candidate numbers that are no longer possible. Interrupted a game? Pick up where you left off in solo mode. Finished a grid? Check your result and stats in your history. One grid, many ways to play. Download SudoDuo and invite your friends. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://simonbraillard.com/en/privacy-policy/

About

Squid Sudoku

Engage in classic number puzzles with multiple difficulty levels and daily challenges. Compete against friends or other players in exciting battles, or progress through a stage mode with numerous tasks. The app offers helpful tools like hints and auto-check to enhance your gameplay experience.

Highlights
  • Multiple difficulty levels
  • Daily challenges
  • Multiplayer battles
  • Stage mode with tasks
  • Hints and auto-check
  • Replay functionality
  • Customizable game skins
Features
Read full description

Squid Sudoku is a numbers puzzle. Simple, classic and easy to play are the features to lead you experience the fun of numbers game and become Sudoku Master! Power of observation and reasoning will be challenged in Squid Sudoku. Gameplay is simple enough but the arrangement of numbers varies dramatically, it is the reason why Squid Sudoku is so attractive, let’s enjoy it together! Fill with a number from 1-9 in the empty cells logically, according to randomly positioned numbers, and make sure each number is unduplicated in 9 rows, columns and blocks. You can not only enjoy Sudoku at any time, but also learn game solving skills by using Squid Sudoku. Features 1.There are five levels for different players, Beginner, Easy, Medium, Hard, Expert. No matter you are new or superior, you can easily find proper level for yourself here. 2.Daily Challenge. Join in Daily Challenge, let’s see how many players you can beat! 3.Exciting Battle games. You can auto-match players or invite friends to battle. 4.Challenge players. You can challenge players in Ranking by inviting him to start an exciting battle. 5.Stage Mode. There are five levels in Stage Mode, and fifty tasks in each level, let’s enjoy fun of stage breaking. 6.Hints, Notes, Auto-check, Highlight Duplicated Numbers and other functions are the reason why Squid Sudoku can be so easy! 7.Replay. Checking replays after games is helpful to know your game solving thought. In Squid Sudoku, you can... 1.Switch Sound Effects and Vibrate on/off 2.Switch Double Tap Note on/off 3.Switch Replay on/off 4.Switch Mistakes Limit on/off 5.Use Auto-Remove function to clear duplicated numbers of notes in each row, column and block after placing the one in empty cell. 6.Use Highlight Identical Numbers function to highlight the same digits, when you select a cell with a number. In Squid Sudoku, you can invite your friends to battle by Facebook Messenger and WhatsApp. As many as four kinds of game skins are available and you can choose Black to protect your eyes. Squid Sudoku with simple UI design in interface, clear layout and great user experience is available for Sudoku fans. It is not only a good method to spend time, but also a good a tool to make you better in thinking logically and have a great memory. Super mind twisting math puzzles and classic Sudoku games are here waiting for you! If you are a fan of Sudoku, you will love Squid Sudoku APP deeply. 【Squid Sudoku Membership subscription】 * Squid Sudoku membership will charge monthly or yearly depending on the plan purchased * There are 4 kinds of membership you can choose - Continuous monthly membership. $0.99 per month. Automatically renew for 1 month after expiration. Subscription can be cancelled at any time.Trial for 7 days. - Monthly Membership. Purchase one month membership for $1.99 - Seasonly Membership. Purchase three months membership for $4.99 - Yearly Membership. Purchase one year membership for $15.99 - Payment: After you confirm the membership purchase, the corresponding fee will be charge from your iTunes account. * Cancel auto-renewal: If auto renewal is no longer needed, please turn off automatic renewal in iTunes/Apple ID setting management at least 24 hours before the end of the current subscription period. * Auto-Renewal: The membership fee will be charged from your iTunes account according to your renewal plan within 24 hours before the end of the current subscription period. Privacy Policy: https://sudoku.argzz.com/agreements/privacy.html Terms of Service: https://sudoku.argzz.com/agreements/agreements.html If you have any thoughts or questions and want to tell us, please send to lijinling@ti-ding.com. We will be so glad to hear from you, thanks a lot!

Screenshots

SudoDuo4 screens
Squid Sudoku4 screens

Verdict

The call

The clearest difference is update cadence: SudoDuo at every 5 days against Squid Sudoku's every 3 weeks. 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. SudoDuo sells 4 one-off in-app purchases and Squid Sudoku sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SudoDuo ships an update every 5 days, Squid Sudoku every 3 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
SudoDuo versus Squid Sudoku: the parameters behind the verdict, then further details
ParameterSudoDuoSquid Sudoku
PriceFreeFree
Rating—4.1 (14 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size65 MB91 MB
Age rating4+12+
DeveloperSimon BraillardShanghai Tiding Information Technology Co., Ltd.

In-app purchases

4 purchases

SudoDuo

One-time4
  • 100 coins$0.99
  • 230 coins$1.99
  • 650 coins$5.99
Show 1 more
  • 1400 coins$9.99
4 purchases

Squid Sudoku

Subscriptions1
  • Consecutive Monthly$0.991 Month
One-time3
  • Monthly Pro$1.99
  • Quarterly Pro$4.99
  • Yearly Pro$15.99

Questions

Is SudoDuo free?
SudoDuo is free to download, with in-app purchases available.
Is Squid Sudoku free?
Squid Sudoku is free to download, with in-app purchases available.
Do SudoDuo or Squid Sudoku have ads?
Both SudoDuo and Squid Sudoku show ads.
Which is updated more often, SudoDuo or Squid Sudoku?
SudoDuo ships an update every 5 days, and Squid Sudoku every 3 weeks. Most recently, SudoDuo was updated on November 7, 2026 and Squid Sudoku on November 3, 2026.

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