Terms of Use

1. Who we are

Better Sudoku is provided by Nikola Hack, nikoala, Vöhrenbacher Str. 39, 78050 Villingen-Schwenningen, Germany. Contact: support@bettersudoku.app.

These terms apply to the Better Sudoku app and its online features. By using the app you agree to them.

2. App store terms

If you got the app from the App Store, Apple’s Licensed Application End User License Agreement also applies. If you got it from Google Play, the Google Play Terms of Service also apply. Where they differ from these terms on billing, refunds or the store itself, the store’s terms take precedence.

3. Using the app

You may use Better Sudoku for your own personal, non-commercial use. You can play without an account. The free version is supported by ads, as described in our Privacy Policy.

Please don’t copy, resell or reverse engineer the app, and don’t interfere with its servers or other players.

4. Premium subscriptions

Premium removes ads and unlocks unlimited hints and lives, a gold profile, monthly streak protection and offline Killer puzzles. It is offered as a weekly, monthly or yearly subscription. The price and period are shown in the app before you buy.

• Payment is charged to your Apple or Google account when you confirm the purchase.
• Your subscription renews automatically for the same period and price unless you cancel it at least 24 hours before the current period ends. Your account is charged for the renewal within 24 hours before the period ends.
• If a free trial is offered and you are eligible, you are charged when the trial ends unless you cancel at least 24 hours before. Any unused part of a free trial ends when you buy a subscription.
• You can manage or cancel your subscription in your App Store or Google Play account settings. Cancelling stops the next renewal; Premium stays active until the paid period ends.
• Purchases are sold by Apple or Google, so refunds and your right of withdrawal are handled by them under their terms.

Premium is tied to your store account. If you sign in, it is also linked to your Better Sudoku account. Use Restore in the app to bring it back on a new device.

5. Accounts and fair play

You are responsible for your account and what you post with it, such as your name, handle and avatar. Names must not be offensive, impersonate others or break the law. Results in battles and on leaderboards must come from your own play.

We may remove names or results and suspend accounts that break these rules or harm other players. You can delete your account in the app at any time.

6. Availability and changes

We keep improving Better Sudoku, so features may change. Online features such as sync, battles and leaderboards need an internet connection and may sometimes be unavailable. If we remove a Premium feature for good, we will offer a fair replacement or let you cancel.

7. Liability

We are liable without limitation for intent and gross negligence, for injury to life, body or health, and where mandatory law requires it. For slight negligence we are liable only for breaches of essential obligations, limited to the damage typical and foreseeable for this kind of app. Your statutory consumer rights remain unaffected.

8. Governing law

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, the mandatory consumer protection rules of the country where you live still apply.

9. Changes to these terms

We may update these terms when the app or legal requirements change. The current version and update date will remain available on this page. Questions? Email support@bettersudoku.app.