Sudoku Puzzle - Brain Games review

Player-review analysis, not a playtest. Sources: the US App Store listing and 50 US reviews dated 2026-07-12–2026-11-04 (Asia/Shanghai), covering versions 5.5.0–5.7.0. This limited, self-selected sample is not representative; player reports are not independently verified.

Sudoku Puzzle - Brain Games makes entry efficiency part of its pitch. Hold a number to reuse it across cells, maintain notes, and use assistance while solving a conventional digit grid.

Entry order is a real distinction

The developer advertises number-first locking, automatically updated notes, auto-check, unlimited undo, a dark theme, and four difficulties.

The official image shows a standard-looking 9×9 grid, number keypad, mistake display, and both notes and advanced-notes controls. The description’s separate 3×2 wording is ambiguous and should not be rewritten as a confirmed second grid format.

One detailed supporter likes that completing a digit automatically selects the next one in number-first mode. Another simply loves auto notes. These identify specific conveniences beyond a general five-star endorsement.

Help can support understanding

A July reviewer praises hints from simple to complex with understandable explanations. That is a useful attributed learning-related report, not an independent audit of every hint or a promise that all help is free.

A contrasting August account says candidate notes count as mistakes. Another says selected digits sometimes do not appear in chosen cells and an unfinished game cannot be reopened.

Those reports concern correctness feedback and persistence, not proof that every Sudoku solution is wrong. Current checking settings and input behavior were not independently tested.

Ad experiences conflict within the sample

Some October reviewers explicitly report no ads, including a detailed supporter of number-first entry. Other reviewers on the same broad version label report commercials after a puzzle or during their reasoning.

Several say they arrived through a promotion claiming an ad-free alternative. Those advertisements do not independently establish an official required migration from another Sudoku app.

The reason for differing experiences is not known. It would be misleading to repeat a no-ad label as universal or erase the supportive no-ad accounts.

Payment has unresolved boundaries

Two purchasers report ads continuing after paying for removal. Others describe browser-opening ads or difficulty closing them. Present prices, coverage, and restoration terms remain unverified.

The US download is free. Auto-save is advertised, while an inability to resume is reported; neither should become a blanket finding on all devices. Offline access and present technical stability remain unresolved.

Consider this Sudoku if automatic notes, efficient repeated-digit entry, and reportedly explanatory hints matter to you. Readers who want a guaranteed interruption-free deduction space or penalty-free candidate entry should treat those as questions still needing confirmation.

Verdict

This Sudoku has unusually specific support for number-first entry and explanatory hints. Its ad conflict and reported note penalties are important limits, kept separate from the familiar grid’s basic appeal.

FAQ

What is number-first entry?

The listing says to hold a number to lock it for use in multiple cells; a reviewer also praises automatic next-number selection.

Are all no-ad accounts disproved by complaints?

No. Both experiences occur in the sample, with no verified cause for the difference.

Is the 3×2 text a confirmed second mode?

No. That wording is ambiguous; the inspected image shows a 9×9 board.

US App Store listing.