Zero ads · Zero popups · Zero signup
Sudoku with no ads. Really.
No banners. No videos between puzzles. No "continue to claim your streak". Just a board, already loaded below.
- ✓ No banner or video ads
- ✓ No account or email wall
- ✓ No third-party ad trackers on the page
Play now · easy
Tap a cell, then a number
What "no ads" looks like in practice
Finish a puzzle and the next one starts — no 30-second video. Open the site on your phone and the board fills the screen — no sticky banner eating the top inch. Play for an hour and nothing asks you to upgrade, rate, subscribe or watch anything.
The ad-free Sudoku checklist
- Daily Sudoku — four difficulties, refreshed every morning
- Unlimited Sudoku — endless verified boards, no energy meter
- Kids Sudoku — no-ads play that is actually safe for children
- Solver — technique-named steps, no paywall on the answer
- Printable PDFs — the original ad-free format
Why we can promise this
Zeloku's pages are static files served from an edge cache — serving you a puzzle costs fractions of a cent, so nothing needs to be clawed back with ad impressions. The full reasoning is on the about page. If an ad ever appears here, treat it as a bug and email us.
FAQ
- Is this Sudoku really 100% ad-free?
- Yes — no banner ads, no interstitials, no rewarded videos, no 'rate us' popups. The playing area contains the board, the controls and nothing else. Zeloku is not ad-supported at all.
- How is free Sudoku with no ads possible?
- The site is cheap to run: static pages on an edge network, a small puzzle engine, no accounts database to babysit. There's no investor growth target demanding ad revenue per session — so there are no ads.
- Do I need to create an account to avoid ads?
- No account exists. Signup walls are how other sites trade 'ad-free' for your email. Zeloku skips both — open the page and the board is already waiting.
- Why do other free Sudoku sites have so many ads?
- Display ads pay per view and video ads pay per completion, so ad-funded Sudoku apps are designed to maximize interruptions between puzzles. It is a business model, not a technical limitation — remove the business model and the ads disappear.
- Is no-ads Sudoku safe for kids?
- It's the safest option. With no ad network on the page there are no third-party trackers, no behavioral profiling and no accidental taps into app-store listings. Our kids boards pair no-ads play with gentle 4×4 and 6×6 grids.