Appworthy

Sudoku - Classic & Killer

Free Offline Brain Number Game

One Up Games Studio
Download on theApp Store
App Store rating4.6★143 ratings
PriceFreeListed price
Age4+Store age rating
Size194 MBiPhone download
CategoryGames
DeveloperOne Up Games Studio

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • Free to download.

Not yet tested.

The store currently lists version 4.9, updated 2026-08-08.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

Train your brain with the ultimate Sudoku experience. Thousands of classic number puzzles, anytime, anywhere, fully offline.

Sudoku - Classic & Killer is a polished Sudoku built for iPhone and iPad, designed for quick daily sessions and deep logic training. Whether you are discovering number puzzles for the first time or chasing a personal best on Expert, there is a difficulty and a mode made for you.

SUDOKU FOR EVERY SKILL LEVEL

- Five difficulties: Easy, Medium, Hard, Expert and Master

- Over 10,000 handcrafted puzzles, each with a single unique solution

- New puzzles added every week

- Daily Challenge with monthly trophies to collect

- Killer Sudoku mode for an extra layer of logic…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

3 measured · 5 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 4.9 · 2026-08-08
Thanks for playing Sudoku. - Fresh puzzles added across all five difficulties - Daily Challenge improvements and new monthly trophies - Faster load times and smoother animation on every device - Interface polish for a cleaner, easier-to-read board - Bug fixes based on your reports, thank you for sending them Still here, as always: - 10,000+ handcrafted puzzles with a single unique solution - Killer Sudoku mode - Pencil notes, auto-notes and explanatory hints - Unlimited undo and auto-save - Full offline play Enjoying the game? A rating or a review on the App Store helps a small team like ours more than you would think. Found a bug or have an idea? Tap Support inside Settings. We read…

Shortened here; the full notes are on the store listing.

Assessment record

Status
Not yet tested
App identifier
sudoku-apple-1479393086
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
4.64 ★ · 143 ratings
Version
4.9
Updated
8 Aug 2026
Price
Free
Age rating
4+
Size
194 MB
Open in App Store
Developer
One Up Games Studio
Category
Games
Listing price
Free

No itemized purchase list is available for this listing.

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Review thresholds Read the methodology For developers

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