Tanklet

What Data Does Tanklet Store?

Tanklet stores the following information locally on your device:

• Your aquarium — fish, their names (chosen by you), species, colors, and care states (hunger, mood, health)
• Tank state — water quality, cleanliness, and placed decorations
• Game progress — coin and pearl balances, collection album, hatched eggs, breeding history, tank expansions
• App preferences — notification and sound settings, onboarding progress

All of this data is game state created by playing. None of it identifies you, and none of it is ever sent to us.

iCloud Sync

Tanklet syncs your save across your devices through Apple's iCloud (CloudKit), using your private iCloud database. This means:

• Your save is stored in your personal iCloud account, protected by your Apple ID
• Data is encrypted in transit and at rest by Apple
• No account creation is needed — it just works with your Apple ID
• We (Smart Kiitös Oy) have zero access to your iCloud data
• If iCloud is unavailable or signed out, the game works fully offline with a local save

For details on how Apple handles iCloud data, see Apple's iCloud Privacy Overview.

Visiting Friends

Visiting lets other players look at one of your tanks. It is off by default and nothing is shared until you turn it on. You can choose Friends only (people who have your friend code or invite link) or Everyone (your tank may also appear when others browse), and you can turn it off at any time.

When Visiting is on, Tanklet stores the following in a public iCloud (CloudKit) database that belongs to the app — again on Apple's servers, not ours:

• Your tank snapshot — your friend code, a name the app generates for you (such as “Reef Keeper 42”; you can't type your own), your player level, the tank's theme, and the species, colors, sizes and decorations in the one tank you choose to share
• Likes — when you like a tank: your friend code, the tank you liked and the date
• Reports — when you report a tank: your friend code and the tank you reported
• Notes between players — “added you”, a visiting fish, or “fed your fish”. These are encrypted on your device so that only the player they are addressed to can read them; anyone else, including us, sees only which friend code they're for and when they were sent

It never includes your fish's names, your other tanks, your stored fish, coins or purchases, your Apple ID, or anything that identifies you. There is no chat and no free text anywhere in Visiting. Your friends list and block list are kept in your private iCloud database, not the public one.

Turning Visiting off removes your tank snapshot from the public database. Blocking a player hides their tank and anything they send you. A tank reported by three different players is automatically hidden from everyone.

Invite links in a browser. If you share your invite link, anyone who opens it in a web browser sees the same tank snapshot drawn on the page: the generated name, your level, and the fish and decorations in your shared tank. Our website reads the snapshot from the public database each time the page is opened and does not keep a copy. If Visiting is off, or the tank has been hidden after reports, the page shows only the invite.

What We Don't Collect

• No email addresses or phone numbers
• No account registration required
• No location data
• No contacts, camera, or microphone access
• No browsing history, and no usage analytics tied to you — only the anonymous counts described below, which you can turn off
• No advertising — and no advertising identifiers
• No third-party tracking SDKs

Anonymous Usage Statistics

To understand which features are actually used, so we can improve the app, Tanklet keeps simple per-day counters of in-app events on your device. After a day is over, it uploads one summary record for that day to Apple's iCloud (CloudKit) servers, in a public CloudKit database belonging to Smart Kiitös. No third-party analytics service is involved, and no server of ours.

That record contains only:

• Which app it comes from, and the date
• The app version
• Your device's region setting — the country chosen in system settings, not your location
• Whether you have a Tanklet+ subscription or not
• A coarse “days since install” bucket (0, 1–6, 7–29, 30+, or “existing user”)
• Counts of in-app events: which screens were opened, which features were used, which multi-step flows were started or completed, which errors were shown, when the paywall was shown or closed, and purchases

It never contains anything you create or enter (no tank names, fish names, notes, photos or other content), no health data, no name, email address, Apple ID, device identifier or advertising identifier, and no precise location. Apple's servers attach an opaque random identifier to each record; we do not read it, and we cannot link records to a person or across days.

These statistics are not linked to your identity, not used for tracking, not shared with or sold to anyone, and not used for advertising. Tanklet's App Store privacy label declares them as Usage Data › Product Interaction, used for Analytics, not linked to you and not used for tracking.

Tank Photos

Tanklet can render a snapshot picture of your tank so you can save or share it. The image is generated entirely on your device and is only saved or shared through the standard iOS share sheet, with your explicit action each time. Tanklet does not access your photo library or camera on its own.

Notifications

Tanklet uses local notifications (on your device) for optional care reminders — for example when your fish get hungry. These are scheduled and delivered entirely on your device, are off until you enable them, and are never sent to any server.

Home Screen Widget

The Tanklet widget shows a snapshot of your tank on the Home Screen, Lock Screen, or in StandBy. The snapshot is shared between the app and the widget through a private App Group container on your device — it never leaves it.

Purchases & Subscriptions

In-app purchases (pearls, the Tanklet+ subscription) are handled entirely by Apple through the App Store. We do not receive or store any payment information (credit card numbers, billing addresses, etc.). Apple processes all transactions according to their privacy policy.

Third-Party Services

The only external service used is Apple's iCloud (CloudKit): your private database for save sync and, for the anonymous usage counts, a public CloudKit database belonging to Smart Kiitös. Both are governed by Apple's privacy policy.

Data Retention & Deletion

• All your data is stored on your device and/or in your iCloud account
• Deleting the app removes all local data
• To remove iCloud data, delete Tanklet's data from your iCloud storage in iOS Settings
• We have no servers of our own and retain no copies of your game data
• If you turn on Visiting, your tank snapshot stays in the app's public iCloud database until you turn Visiting off, which deletes it
• The anonymous usage counts are kept as aggregate statistics in Smart Kiitös's CloudKit database; they can't be tied to a person
• Turning off usage statistics in Tanklet's Settings stops uploads and deletes any counts not yet sent

Children's Privacy

Tanklet is a calm, family-friendly game, and we do not knowingly collect personal information from anyone — including children under 13. The app requires no personal information to play; the fish names you enter are stored locally and in your own iCloud, and are never transmitted to us. The anonymous usage counts described above contain nothing about who is playing.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated date. Continued use of the app after changes constitutes acceptance of the updated policy.

Contact

If you have questions about this privacy policy:

info@smartkiitos.com