Terms of Use

The app and its operator

Sudokuzy: Daily Sudoku is provided by MATRIXBREACH INNOVATIONS (OPC) PRIVATE LIMITED for personal entertainment. Contact support@matrixbreach.com with questions about the game or these terms.

Using Sudokuzy

You may play Sudokuzy for personal entertainment. Do not interfere with its operation, distribute misleading copies that claim to be official or use it unlawfully. Children should involve a parent or guardian where help or permission is required by applicable law.

Sudokuzy includes 1025 ordinary offline puzzles, including 50 Easy, 175 Medium, 225 Hard, 150 Expert, 275 Master and 150 Extreme levels. The last confirmed public release is 1.0.12/build 69. Earlier builds include 160 dedicated Daily puzzles through 3 December 2026. In the 1.0.13 update candidate (build 94, still in testing), this extends to 300 dedicated Daily puzzles across 75 consecutive local dates, 25 October 2026–7 January 2027, with one each in Easy, Pro, Pro Max and Time Trial per date. The 140 added definitions do not change frozen/versioned puzzle IDs or existing saved puzzles. Outside the dedicated range, sequential challenge trails reuse ordinary puzzles, may repeat, and share first-clear stage rewards across dates. One eligible Daily clear gives one star for the date; other clears add no stars, extra ordinary reward or star coin bonus. Each dedicated puzzle pays its mode reward once; replay does not repeat it. Time Trial allows 15 minutes of active play, paused in menus/hints/background; timeout gives no completion reward and retry is free. Editing tools are free. Higher ordinary difficulties unlock through completed puzzles, and challenge-trail stages open sequentially. A visible locked ordinary level can also be opened early for 25,000 earned coins or two optional rewarded ads; one earned ad credit is saved until the second is earned. The unlock applies to that level only and does not award a completion or open a whole tier. Each puzzle starts with three hearts. An incorrect entry uses one heart; at zero, you can retry freely, spend 4,000 earned coins for one heart, or choose an optional rewarded ad to restore one heart. Other optional rewarded ads can offer one saved extra hint or the displayed daily coin gift. Rewards are granted only after the advertising SDK confirms they were earned. Closing an ad early does not earn a reward. Availability is not guaranteed. There are no real-money purchases, subscriptions or paid entitlements. Virtual coins cannot be bought for real money, transferred or redeemed for money.

Hints and assistance

There is no complimentary hint allowance. You can earn one saved hint from an optional rewarded ad or use 1,000 earned virtual coins for a hint when none is saved. New profiles receive 3,000 coins once and can earn more from first completions; existing balances are converted once to the equivalent new denomination. Replays do not repeat first-completion rewards. A hint is charged only when its explanation is successfully saved and displayed. Cancellation, errors and reopening the same displayed hint do not spend another hint. Tutorial practice spends no real resources. Local dates rely on the device clock and are not tamper-proof.

An explained deduction is shown when available, and applying it is optional. If a supported logical explanation is unavailable, a reveal is clearly labelled solution assistance. The hint system does not support every advanced Sudoku strategy.

Hint and other assistance use is recorded locally. Reopening the same displayed hint does not count another use. Hints do not automatically populate manual notes; editing remains under your control.

In the 1.0.13 update, Me → Tutorial → Open Tutorial (also Help → Tutorial & practice) opens Beginner, Intermediate, Advanced and Expert libraries. There are 24 illustrated guides and interactive practice across 21 lesson models, with animations, knowledge checks and separate saved learning progress. Practice preserves the real puzzle, coins, hearts and hints. These are offline app-rendered lessons, not a streaming or narrated course.

Ownership and open-source notices

Sudokuzy’s original artwork, code, branding and other protected content belong to MatrixBreach or their respective rights holders. Permission to play does not transfer ownership or grant permission to redistribute protected content. Rights granted by applicable law remain available.

Third-party software remains subject to its own licences. Read the local notices under Me → About Game → Open-source notices.

Local progress and removal

Progress, entries, notes, history, independent lesson/guide progress, tutorial resume/completion, tutorial-audio preferences, saved hints and settings are saved locally. There is no account, developer cloud synchronization or recovery service. Removing data or replacing a device can permanently lose progress, and restoration after reinstalling is not guaranteed.

Me → Privacy Rights → Delete local progress removes active saves, temporary saves and preserved recovery copies belonging to that profile, then creates a fresh profile. Separately managed backups, support messages and independent provider information are unaffected. See data and deletion guidance.

External actions

The Terms of Use and Privacy Policy are bundled with the app and can be read here without a browser or internet connection. There is no arithmetic gate. A first-run birth date is used to calculate a locally saved age band; the birth date itself is not saved and no proof of identity is requested. Optional ads are unavailable to players aged 13 or younger. Separately labelled website links use your browser. Report a bug and Contact us prepare a draft in your email app only when you choose Continue to email. Opening a draft does not send it; review it and press Send yourself. These optional external services have their own terms and privacy practices.

Updates, availability and consumer rights

Presentation and features may change as the app is maintained. We aim to keep it usable but do not promise uninterrupted availability, compatibility with every device or recovery of deleted local data.

Nothing here excludes rights, remedies or liabilities that cannot lawfully be excluded, including applicable consumer rights. No financial liability cap or waiver of statutory protections is imposed by these terms.

Support, privacy and stopping use

Use Report a Bug or Contact us in Me / Help, or email support@matrixbreach.com. No guaranteed response time is offered. Read the Privacy Policy for local records, website requests and voluntary correspondence.

You can stop using the app at any time. Follow the deletion guide if you also want to remove local data or request deletion of correspondence. We will update these terms and their date when relevant arrangements change.