Comparison

SUDOKU.Studio vs Theオセロ

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

Head to head
About

SUDOKU.Studio

This app offers a wide range of Sudoku puzzles with adjustable difficulty levels for all skill sets. It includes helpful features like hints, error checking, and candidate number entry. Daily challenges and collectible emblems provide ongoing engagement.

Highlights
  • Adjustable difficulty levels
  • Hint function
  • Daily challenges with emblems
  • Candidate number entry
  • Mistake checking
  • Auto-save function
  • Time display
Features
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Regardless of whether you are a beginner or an expert at Sudoku, you will be able to select a difficulty that best suits your skill level. The “Hint” function is available on all Sudoku puzzles whenever you get stuck. All Sudoku puzzles can be solved logically. There are no puzzles that require using proof by reduction to solve. In addition, as you can input numbers by either selecting the cell first or the number first, you will be able to enjoy the puzzles without much hassle. You can solve one Sudoku puzzle each day by completing the daily challenges. Solve all monthly puzzles to get different emblems every month. As you can also attempt Sudoku puzzles challenges and puzzles from the past, you can collect up to 12 different emblems every year. ・There are 6 difficulty levels ranging from Beginner to Challenge. ・There are detailed explanations, complete with illustrations, on all solving methods ranging from Hidden Single to X-Wing. ・All puzzles come with a “Hint” function. ・There is a function that allows you to enter all candidate numbers at once. ・There is a function that allows you to delete all candidate numbers at once. ・There is also a “Hide ads” function (paid), if you do not wish to see any ads. ・You can also check for mistakes with just a simple tap of a button. Incorrect numbers will be displayed in red. ・You can choose whether to highlight duplicate numbers. ・You can choose whether to highlight the block, row and column of the selected cell. ・There is also an “Eraser” function. ・There is a function to undo each step, and another function to start over from the beginning. ・There is also an auto-save function. Even if you quit the puzzle mid-way, you will be able to continue where you left off anytime. ・As there is a time display function, you can attempt to beat your personal record as many times as you wish. Enjoy Sudoku anytime, anywhere.

About

Theオセロ

Features
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シンプルなオセロアプリです。持ち時間を設定してオセロの対戦ができます。

Screenshots

SUDOKU.Studio4 screens
Theオセロ3 screens

Verdict

The call

The clearest difference is in-app purchases: Theオセロ at none against SUDOKU.Studio's 1. Theオセロ also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 months). On price, device support and iOS requirement 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. SUDOKU.Studio sells 1 one-off in-app purchase. Theオセロ asks for nothing beyond the download.

UpkeepUpdate frequency

SUDOKU.Studio ships an update every 2 months, Theオセロ every 6 days. The most recent releases landed on October 14, 2026 and October 23, 2026 respectively.

Scorecard3 real differences · 7 level
SUDOKU.Studio versus Theオセロ: the parameters behind the verdict, then further details
ParameterSUDOKU.StudioTheオセロ
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size157 MB5 MB
Age rating12+4+
DeveloperWorks Inc.kazuki omori

In-app purchases

1 purchases

SUDOKU.Studio

One-time1
  • 広告非表示$7.99
None

Theオセロ

No in-app purchases

Questions

Is SUDOKU.Studio free?
SUDOKU.Studio is free to download, with in-app purchases available.
Is Theオセロ free?
Theオセロ is free to download, with no in-app purchases.
Do SUDOKU.Studio or Theオセロ have ads?
SUDOKU.Studio shows ads; Theオセロ does not.
Which is updated more often, SUDOKU.Studio or Theオセロ?
SUDOKU.Studio ships an update every 2 months, and Theオセロ every 6 days. Most recently, SUDOKU.Studio was updated on October 14, 2026 and Theオセロ on October 23, 2026.

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