Your play. Your choice.

Privacy information / October 2, 2026

Developed by Mercer Puzzle Co.

Full privacy policy

Puzzles and personal statistics

Puzzle progress, settings, and personal statistics are stored on your device. The iPhone app also keeps a local backup. Joining the leaderboard does not enable cloud puzzle saves. Removing the app or clearing website storage can remove this local data.

Online leaderboard

When connected, the app automatically creates a random profile and public nickname, without an email or real name. Existing profiles keep their names and scores. Your nickname, game, difficulty, daily date, score, active time, and ranking are public. Your device stores a secret access token; the server stores only its hash. Do not share your device's application storage.

For eligible attempts, the app sends the puzzle identifier, final solution, timing, and hint count for validation. Solutions are processed to verify results, not published or stored in the leaderboard database. Pending submissions stay on your device until uploaded. The server retains profile and result records until you delete your online profile.

Use Leaderboard > Delete online profile to remove your profile and uploaded results and stop automatic enrollment on this installation. You can choose to join again. This does not delete your local saves or cancel an Apple subscription. The current profile is installation-specific, without email registration or cross-device account recovery.

Friends

If you add friends, we store the player IDs you select with your online profile to provide a private friends list and compare public scores. Your list is not published or shared with those players. Friend codes are public player IDs, not sign-in credentials. We do not access your contacts. Remove individual friends in Leaderboard, or delete your online profile to remove the list. Sharing uses the destination you choose.

Optional usage sharing

The separate usage-sharing switch in Settings is off unless you enable it. It shares game starts, results, active play time, hints, retries, app version, and platform under a random installation identifier. Shared analytics records are retained for up to 180 days. Settings includes a separate control to delete shared usage records.

Legacy requests for more comic pages

Earlier versions with Continuous Play could queue requests for more content. It sends only the game, difficulty, collection edition and page count, without a player name or account identifier. The developer inbox retains one request per collection version for planning new content. Previously queued requests may retry when connected. Network addresses are processed by hosting infrastructure as described below.

Purchases

Apple processes iPhone subscription payments. Pocket Eureka! does not receive your payment card number. The app uses Apple's verified purchase information to determine Plus access. Use Restore purchases in Plus to recover access through your Apple account. Manage or cancel subscriptions in Apple's subscription settings.

Connections and controls

Online features transmit data to the Pocket Eureka! service. Network addresses are processed to serve and rate-limit requests. Daily puzzle editions and software updates are checked when connected. Downloaded Daily Cards can be played offline. Free daily-library starts make a fresh connection check to our daily-set service; an unsuccessful check prevents a new library start but does not interrupt an open puzzle. Active Plus and Full Beta Access bypass this connection check.

Advertising and consent

The iPhone app includes Google AdMob and Google's User Messaging Platform. Test builds use test ads. Free daily-library play may show an ad after every third Easy completion and after each Medium completion. Library Challenge puzzles require Plus or completion of an optional rewarded ad for that game's daily puzzle, with no additional completion ad. Reward unlocks are saved on your device. Ad availability and duration vary. Daily Cards at every difficulty are ad-free. Plus and Full Beta Access do not request ads. The current integration requests non-personalized ads and does not request App Tracking Transparency permission.

Google may process IP addresses (which can indicate approximate location), device identifiers, device and app information, ad interactions, and diagnostic data for ad delivery, measurement, security, and fraud prevention. Non-personalized ads are not data-free. Where required, a consent message is shown before ads can be requested. You can reopen available choices in Settings > Privacy > Advertising privacy choices. Google controls retention of data it processes; see Google's Privacy Policy and advertising information. Daily Cards and library Easy and Medium remain playable when ads cannot be requested. A new rewarded Challenge unlock requires an available ad and its reward; existing unlocks are not removed.

Support and service operations

When you send an in-app report, we receive your message, screenshot if attached, optional reply email, and game, difficulty, mode, puzzle date or level, app build and platform. Nothing in the report is uploaded until you tap Send. The app offers a screenshot preview and removal before sending. Report messages are saved as drafts on your device until sent; screenshot drafts stay in memory. Private server copies are retained for up to 90 days and forwarded to pocketeureka@mercerpuzzle.com. Email copies remain in our support correspondence until no longer needed to resolve the issue or meet applicable obligations. You can request deletion by quoting the report ID. If you email support directly, we receive the email address, message and attachments you choose to send. Please do not include passwords or payment details. Our hosting and email providers process information needed to deliver these services. Hosting security logs may contain network addresses and request metadata. Private backups support recovery; deleted records can remain in older backups until those backups expire. Any recovery must reapply deletion requests before restored records are made available.

Published by Mercer Puzzle Co. For support or privacy requests, email pocketeureka@mercerpuzzle.com.

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