İlmek Privacy Policy
İlmek has no separate account. This page explains the game save kept on your device, the data sent to Apple for optional duels and Game Center features, Kulüp transactions in the 1.6 update, Apple ad measurement and Sentry error reports.
1. Data collected: duels, Game Center and error reports
İlmek does not read your location, contacts or photos, use an advertising identifier or ask for permission to track across apps. Duel names, gameplay results and account-related player identifiers are processed for online game features (sections 5 and 8). These records are not anonymous. Sentry is used to fix technical errors; section 7 explains how identifiers in reports are removed depending on version and date. Apple StoreKit handles Kulüp transactions in the 1.6 update (section 6). Advertising results are measured with Apple’s AdAttributionKit and SKAdNetwork systems (section 9); this data is not used to track a person across apps or companies.
2. What stays on your device
Your daily puzzle progress, the days you completed, your settings (haptics, sound, appearance) and whether the tutorial was shown are kept only in the app's storage on your device. The entire local save is not sent to us; the names, results, times, points and achievement data needed for the online features you choose go to Apple (sections 5 and 8). Deleting the app removes the local save on that device; it does not delete records held by Apple or earlier error reports. Your local save may be included in your device backup, depending on your iOS backup settings; Apple's terms govern that backup. The app also keeps your duel name on your device and, if you are signed in to Game Center, your Game Center name, ranking values not yet sent and the live duel log; sections 5 and 8 explain what of this goes to Apple.
3. Network access
İlmek needs no server for the daily puzzle and the Workshop: puzzles are generated on your device from a seed derived from the date, which is why everyone sees the same puzzle on the same day. The network is used to write and read duel records in Apple iCloud, receive result notifications and load puzzle packs from Apple iCloud, for Apple’s Game Center features (rankings, achievements and live duels, section 8) if you are signed in to Game Center on your device, and for crash and error reports (section 7). Kulüp purchases, membership verification and restoration in the 1.6 update use Apple StoreKit. For advertising measurement (section 9) the app opens no connection of its own; iOS sends the report.
4. Sharing
The "Share" button opens the iOS share sheet. The shared content is an image of your result, a short text and a link; you choose where it goes and İlmek does not record the action.
5. Duels
If you use duels, your duel name, puzzle code, solve time and hint count are stored in the public database of Apple iCloud (CloudKit) and can be read by duel participants and OzyCore. CloudKit records are associated with your Apple account; a result record also uses a stable player tag derived from the CloudKit user record. Names and gameplay results can therefore be linked to the account; this tag does not make them anonymous. Your duel name is the nickname you enter; if you enter none and are signed in to Game Center on your device, your Game Center name is used. No separate İlmek account is created. You can request deletion of these records at info@ozycore.de, quoting the duel code. Live duels through Game Center are described in section 8.
6. Apple and the App Store
The app is distributed through the App Store. Data Apple processes for downloads, purchases and diagnostic services you allow is governed by Apple’s privacy policy; OzyCore can view the reports Apple provides to developers. In the 1.6 update, Apple StoreKit handles optional Kulüp purchases and restoration. İlmek reads verified product and transaction status and original-install information to determine access; it does not receive your payment-card details or Apple account password.
7. Crash and error reports
The 1.5 version in the App Store uses Sentry, a service of Functional Software, Inc., to fix crashes and technical errors. Reports contain technical information such as the error type and stack trace, app/operating-system version, device model and state, language and time zone; a crash report may be sent at the next launch. The 1.5 client can also create a random installation identifier, a hash derived from Apple’s identifierForVendor, the device model and app identifier, and a trail of screens and taps before the error (breadcrumbs). Since 21 October 2026, server filters in İlmek’s Sentry project remove the IP address, user field (including location) and app-device hash before new event reports are stored. This change did not delete events stored earlier. When you use the 1.6 update, the client also removes the automatic user identifier, app-device hash and breadcrumbs before sending; this client filter must not be assumed to exist in 1.5. The app does not add your name or email address to reports. Event data uses Sentry’s EU region (Frankfurt, Germany); some account and service metadata may be stored in the USA. Under Sentry’s standard plans, error events are retained for 30 or 90 days depending on the plan; other data, such as event counters and backups, follows different retention rules. Functional Software, Inc. is US-based and participates in the EU-U.S. Data Privacy Framework. The legal basis is Art. 6 (1) (f) GDPR; our legitimate interest is detecting and fixing technical errors.
8. Game Center: rankings, achievements and live duels
The Game Center features are optional and run through your Apple account. İlmek uses them only if you are signed in to Game Center on your device; OzyCore runs no server of its own for them. Rankings: the app sends your time for the daily puzzle and the daily Master puzzle, your weekly and all-time points and your weekly tournament result to Game Center, where they appear with your Game Center name; for this it shows names, profile pictures and ranks of other players from Game Center. If the "Show me in rankings" switch in Settings is off, the app sends no new values; entries sent earlier stay with Apple. Achievements: the app reports your achievement progress to Game Center even when that switch is off. Live duels: Apple matches you with a random opponent who chose the same board size or with a friend you invite. During the duel the two devices exchange, through Game Center, your duel name, the app's build number, the puzzle, your progress (number of filled cells), your solve time and hint count; your opponent also sees your Game Center name and profile picture. OzyCore stores none of this. The live duel log with the last 200 entries (phases, message types and errors, without names and with identifiers cut to their last four characters) stays on your device; you can view it in Settings and copy it yourself. What Apple stores in Game Center and who can see it is governed by Apple's privacy policy and your Game Center settings.
9. Advertising measurement: AdAttributionKit and SKAdNetwork
When we advertise İlmek, we measure the ads' results only with Apple's system features AdAttributionKit (iOS 17.4 and later) and SKAdNetwork (earlier iOS versions). For this the app tells iOS, at launch and at each new milestone, a number between 0 and 63 that only records which of these steps you have reached: tutorial finished, first puzzle solved, five puzzles solved, came back on a later day, a daily puzzle solved; in the 1.6 update, an active Kulüp purchase is also verified (after purchase or restoration). Only if you installed or opened İlmek from an ad does iOS report this value, with a delay, to the ad network that showed the ad – depending on the number of installs, possibly only as a coarse level (low, medium, high). Apple designs these reports to contain no user or device identifier and not to be traceable to you; without an ad nothing is reported. The app sends nothing for this to OzyCore or to ad networks; we only see the aggregated campaign results the ad networks display.
10. Children
Duels and Game Center are optional. A duel stores a duel name and account-related gameplay records (section 5); your Game Center name may also be used. Technical error reports and Apple ad measurement are separate from these features (sections 7 and 9). Kulüp purchases in the 1.6 update are handled by Apple (section 6). For questions or privacy requests about a child’s data, email info@ozycore.de.
11. Your rights and contact
The controller is OzyCore GmbH, Kreuzberger Ring 24, 65205 Wiesbaden, Germany. You can send privacy requests, such as access, correction or deletion, to info@ozycore.de. Quote the duel code so we can find a duel record; the app version and approximate event time may help identify an error report. Older error reports may contain identifiers, so we do not assume they are always anonymous; our ability to identify a report as yours may be limited. Apple manages Game Center and purchase data through your Apple account. You can object to processing for error reports under Art. 21 GDPR and lodge a complaint with a data protection supervisory authority (Art. 77 GDPR), such as our competent authority: Der Hessische Beauftragte für Datenschutz und Informationsfreiheit, Gustav-Stresemann-Ring 1, 65189 Wiesbaden, Germany.
12. Changes
If this policy changes, the current version is published on this page and the date is updated.
Last updated: 22 October 2026