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CLUSTER PUZZLE-SUDOKU-DIFFICULTY · 23 ENTRIES · EARLIEST ENTRY 2013-05-10

Mobile Sudoku Puzzle Games

This cluster consists of mobile Sudoku puzzle games offering large puzzle libraries, difficulty levels, hints, and daily challenges. Entries were dated sporadically from 2010 through 2026, with occasional multiple entries in some years (e.g., 2018 and 2026), but no clear growth pattern. The traction leader is 'sudoku-app' with 3 stars, while the others are at zero.

Entry timeline

ENTRY TIMELINE

APR 2010: 1MAY 2013: 1AUG 2014: 1MAR 2016: 1MAR 2017: 1JUN 2018: 1JUL 2018: 1NOV 2018: 1FEB 2020: 1SEP 2020: 1OCT 2021: 1MAY 2023: 1SEP 2025: 1MAY 2026: 1JUN 2026: 1JUL 2026: 2SEP 2026: 5OCT 2026: 1
APR 2010OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 3 hand-coded

Operator · 1 commercial · 2 open source

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 3 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 21Sudoku (Privacy Friendly)0★7 mostalelivehand-codedopen sourceMobile sudoku puzzle app with multiple grid sizes, difficulty levels, a daily challenge, and custom puzzle creation, free of ads and permissions.
  2. 22Simple Sudoku Game0★1 yrstalelivehand-codedopen sourceMobile puzzle game that offers sudoku boards with adjustable difficulty and grid size, designed to be playable even by non-readers.
  3. 23Big Bad Sudoku Book0★13 yrabandonedlivehand-codedcommercialSudoku puzzle game that offers guided hints instead of direct answers and unlimited play across difficulty levels on mobile devices.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.