Best Sudoku App for Beginners: Learn as You Play

A good first sudoku app does more than hand out easy puzzles: it shows you why a number goes where it does, so the next level stops feeling like guesswork. Sudoku Royale and Good Sudoku are built around that idea. Sudoku Royale starts with an 88-level Journey that opens on "First Steps", its hints name the technique instead of giving away the number, and it costs nothing. Good Sudoku has AI-powered hints that read your notes, and sells a one-time full unlock. Brainium, nerByte and Sudoku.com all have hints too, with ads you can pay to remove.

The App Store facts

From each app's US App Store listing, checked October 26, 2026. Prices and paid items change, so check the listing before you buy.

What each app does for a new player

Hints that teach versus hints that answer

The most common hint in a sudoku app fills in a cell for you. That gets you through today's puzzle and teaches you nothing about tomorrow's. The apps worth a beginner's time explain the move.

Sudoku Royale's hint lights up after about 90 seconds without progress in Practice. Tap it and it points to a cell and names the technique that solves it, a hidden single, say, but not the number. A link opens the lesson for that technique. You still make the placement, which is the part that sticks. Hints need an internet connection.

Good Sudoku's listing describes a solver that runs while you play and looks at your answers and notes to find "the next technique you need". Brainium's says its hints teach "why" the answer is what it is, with animations. nerByte lists "explanatory hints" with step-by-step instructions. Sudoku.com's listing simply says hints "can guide you when you get stuck", without claiming to teach. For more on what separates a useful hint from a spoiler, see our guide to sudoku hints.

A path, not just a difficulty menu

Most apps give you Easy, Medium and Hard and leave you to find out what changes between them. Sudoku Royale's Journey lays the route out: 88 levels in 10 stages, from First Steps to XY-Wing, with one technique per chapter. The Dojo then drills a single pattern with short timed exercises until you spot it quickly. In Practice, higher levels unlock after a number of solves at the level below, so you cannot wander into Expert on day one by accident.

Good Sudoku takes a similar view from another angle. Its listing says it lays out exactly which techniques each difficulty level requires and lets you practice them individually. If you like the idea of a technique-first app, our Sudoku Royale vs Good Sudoku page puts the two side by side.

Mistakes while you are learning

Sudoku Royale checks every number the moment you place it and rejects a wrong one. For a beginner that is a safety net: an error never sits on the board for ten moves and wrecks the puzzle. Practice has no mistake limit. The flip side is that checking cannot be turned off, so once you want to find your own mistakes, Brainium and Sudoku.com let you switch auto-check off. Sudoku Royale also has no undo and no auto pencil marks; you write notes yourself, and they are cleared from the row, column and box when you place a number.

How to start, whichever app you pick

1. Learn the two singles first. A naked single is a cell with only one possible number; a hidden single is a number with only one possible cell in its row, column or box. Most easy puzzles need nothing else.
2. Stay on Easy until you finish without hints. Then move up one level. The techniques by difficulty chart shows what each step adds.
3. Start writing notes at Medium. Pencil marks are how you see pairs and pointing patterns later.
4. Follow a structured path if you have one. An app with levels that teach saves you from guessing what to learn next.

Where another app is the better pick

• You want help while offline. Sudoku Royale's hints need a connection. nerByte's listing says it is offline playable without restrictions.
• You want undo or auto notes. Sudoku Royale has neither; Brainium lists Auto-Fill Notes.
• You want a long-established app with teaching hints. Brainium has been on the App Store since 2011 with 161,164 ratings; it shows ads unless you buy Remove Ads. Sudoku Royale launched in 2026.
• You are on Android. Sudoku Royale is iPhone and iPad only.

Our pick

For a beginner who wants to actually get better, with no ads and nothing to buy (Free, no in-app purchases), start with Sudoku Royale and the Journey's first stage. If you are choosing for someone older, the picks for seniors weigh readability and input too, and every matchup is on the comparisons page.