Lantern Sudoku

about

description

Lantern Sudoku is a quiet sudoku for short, calm sessions. It has no ads, no account and no game over, and it works fully offline. When you're stuck, a hint lights the next step instead of giving the answer away. You choose how much help you want: • Where to look: the area where the next step is. • Why: the technique by name, with a short explanation and the cells that matter highlighted. • The digit, only if you want it. If a digit on the board is wrong, the hint tells you that first, so you never chase a step built on a mistake. Honest puzzles • Four levels: Easy, Medium, Hard and Expert. • Every puzzle has exactly one solution and never needs guessing. • Each puzzle is graded by the hardest technique it needs, so a level means the same thing every time. • More than 11,000 puzzles come with the app. Nothing is downloaded. A daily puzzle • One puzzle a day, the same for everyone, with a streak and days played. • Share a spoiler-free result card if you like. Nothing is shared unless you tap Share. Made to be easy on the eyes • Large, clear digits, with a Larger digits option. • Light, Dark and two high-contrast themes. • Works with large system text and with TalkBack. Never punished • Mistakes can be shown or hidden. A mistake limit is optional and off by default. • Your game is saved after every move. Undo, redo, erase and notes that tidy themselves when you place a digit. • A calm summary when you finish, and statistics per level. Private by design • No ads, no analytics, no crash reporting, no account. • The app asks for no permissions, not even internet access. • Your games stay on your phone. If Android backup is on, Android may copy them to your own Google account; the app itself never uploads anything. Lantern Sudoku is free and open source software (GPL-3.0-or-later).

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-17T06:38:53.808145+00:00

last event

2026-10-12 09:32 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/ukpratik/lantern-sudoku

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

1 release indexed; latest 1.0.1.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.0.1 — lantern-sudoku-1.0.1.apk

sha256

ebcb387db5fd1373cc96d78aad3f9ac2ba8bf4aa72bab0e78dc928ccf491c26f

size

2.4 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

10001

apk cert sha256

bd4537130cf952575331b82e1dc2d2bdc1e639ed81875aa063fb13272b1cb529

download

lantern-sudoku-1.0.1.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…