2026 App Comparison

Best Sudoku Apps of 2026: Top Free & Paid Picks

Searching the App Store or Google Play for "Sudoku" returns hundreds of clones—many filled with video ads, clutter, and aggressive paywalls. We tested the leading options across iOS, Android, and web to find the cleanest, most enjoyable Sudoku apps.

Top 5 Sudoku Apps Reviewed

Whether you want a quick 5-minute morning puzzle or an in-depth campaign to sharpen your skills, here are the top apps worth downloading.

1. Sunset Sudoku
Best Overall Experience

Why it's great: Sunset Sudoku pairs a calming sunset visual palette with thoughtful quality-of-life mechanics. When you place a number, it automatically eliminates outdated candidate pencil notes across peer cells. It offers a free daily puzzle on the web, plus unlimited games across 4 difficulty tiers, daily leaderboards, streak tracking, and player statistics on mobile without aggressive video interruptions.

Play Free Daily Challenge Get Mobile App
Platforms: iOS, Android, Web Price: Free (Optional Ad-Free Pass) Pencil Notes: Smart Auto-Clear
2. Good Sudoku by Zach Gage
Best for Advanced Learning

Why it's great: Designed to teach you high-level logic (like X-Wings and Swordfish), Good Sudoku feels like a masterclass. It features auto-candidates and smart AI hints explaining the logical reason behind every deduction.

Platforms: iOS, Mac Price: Free to try ($4.99 unlock) Pencil Notes: Automatic & Manual
3. NYT Games Sudoku
Best Daily Web Habit

Why it's great: Part of the NYT Games ecosystem (alongside Wordle and Connections), NYT Sudoku offers three curated daily puzzles (Easy, Medium, Hard). The web interface is clean, though mobile users must navigate the broader NYT app.

Platforms: Web, iOS, Android Price: Free (NYT Games Subscription for archive) Pencil Notes: Manual Notes Only
4. Sudoku.com (Easybrain)
Most Popular

Why it's great: The most downloaded Sudoku app on both major stores. It offers seasonal events, daily awards, and thousands of puzzles. However, free players must endure frequent banner and full-screen video ads between games.

Platforms: iOS, Android, Web Price: Free (Ad-supported, VIP subscription) Pencil Notes: Auto-check & Manual
5. Cracking the Cryptic (Classic Sudoku)
Best Handcrafted Puzzles

Why it's great: Created by world-renowned puzzle solvers Mark Goodliffe and Simon Anthony. Every puzzle is hand-made rather than computer-generated, guaranteeing elegant solving paths. Ideal for intermediate to expert solvers.

Platforms: iOS, Android, Steam Price: Paid App ($4.99) Pencil Notes: Full Corner & Center Notation

Feature Comparison Table

Here is how the top five Sudoku apps compare across key features, platforms, and user experience:

App Platforms Ad Experience Pencil Notes Offline Mode
Sunset Sudoku iOS, Android, Web Distraction-Free / Minimal Smart Auto-Clear Yes (Mobile Apps)
Good Sudoku iOS, Mac No Ads (One-time Unlock) Auto & Full Assisted Yes
NYT Sudoku Web, iOS, Android Subscription Prompt Manual Notation No (Requires Web/Login)
Sudoku.com iOS, Android, Web Frequent Video Ads Manual Notation Yes
Cracking the Cryptic iOS, Android, Steam Zero Ads (Paid App) Corner & Center Notes Yes

Frequently Asked Questions

What is the best free Sudoku app without intrusive ads?

Sunset Sudoku provides a clean, calming aesthetic with no disruptive video ads interrupting your puzzle flow. You can play directly on the web or download the iOS/Android apps for campaign progression.

What is the difference between web Sudoku and mobile app Sudoku?

The web version features one curated daily challenge puzzle each day directly in your browser. The mobile app lets you play unlimited games across 4 difficulty levels (Easy, Medium, Hard, Extreme), compete on the global daily challenge leaderboard, track detailed solve statistics, and build playing streaks.

Why does candidate note auto-cleanup matter?

In harder puzzles, you often write 2 to 3 candidate notes per cell. Without auto-clearing, every time you fill a digit you must manually tap eraser mode and delete the old notes. Apps with smart auto-cleanup do this automatically so you can focus on pure logic.