Privacy Policy · Last updated: September 24, 2026
Kanban Board is an offline app. Your boards, columns and cards are stored only on your device — we never receive them. The only data that reaches a server we operate is the purchase record needed to unlock PRO, described in section 5.
LuckyhanStudio ("we") publishes the Kanban Board Android application (the "App"). This policy explains what the App stores, what third parties can see, and the choices you have.
By using the App you agree to the practices described here.
Everything you create in the App is written to local storage on your device and is never transmitted to us:
You can export this data yourself as JSON or CSV at any time. Exported files are written to the location you choose through your device's file picker; what happens to them afterwards is up to you.
We do not operate an account system or a sync service. We do not collect your name, email address, phone number, contacts, precise location, photos or the contents of your boards — not through analytics, not with a purchase, not anywhere.
The App uses Google Analytics for Firebase to understand how it is used — for example which screens are opened, how long a session lasts, how many cards were created or completed, and which features are switched on. Firebase also records technical information such as the app version, device model, Android version, approximate country and an identifier generated for this installation of the App.
Analytics never includes anything you type: card and board titles, descriptions, checklist items and search terms are not sent. Counts are sent as ranges and settings as simple values. This data is processed by Google under its Privacy Policy at https://policies.google.com/privacy and kept according to Google Analytics retention settings.
PRO is sold through Google Play. Google handles the payment; we never see your card details, name or email address.
To confirm what you bought, the App sends the purchase token and product identifier that Google Play gives it to our entitlement server, which runs on Cloudflare. The server asks Google Play whether the purchase is valid and stores what Google returns: the purchase token, order ID, product and plan, purchase and expiry dates, renewal and cancellation status, and the renewal, refund and cancellation notices Google Play sends about that purchase. None of this is linked to your name, email address, advertising identifier or board contents.
We use this information only to turn PRO on and off correctly, including renewals, refunds and expiry. Purchase notices are deleted after 180 days. The purchase record is kept while it can still affect your access, and afterwards only as long as needed to handle refunds and disputes.
The App shows advertising supplied by Google AdMob (banner, native, interstitial and app-open formats). To serve and measure those ads, Google may collect and process device and usage information, including your advertising identifier, IP address, device type and interactions with the ads.
This processing is carried out by Google, not by us, and is governed by Google's Privacy Policy at https://policies.google.com/privacy. You can reset or delete your advertising identifier in your Android settings under Settings › Google › Ads.
Where consent is required — including the European Economic Area, the United Kingdom and Switzerland — the App asks for it through Google's User Messaging Platform before any personalised advertising request is made.
You can change your choice at any time: open Settings › Ad privacy options in the App. That entry appears whenever your region requires an ongoing way to revisit the decision.
The App is not directed at children under 13 (or the equivalent minimum age in your country) and we do not knowingly collect information from them.
Your boards never leave your device, so uninstalling the App or clearing its storage in Android settings removes them for good.
If you have enabled Android's system backup, your device may include the App's data in the backup your device maker or Google holds. That backup is governed by their policies, not ours.
Uninstalling does not delete the purchase record on our server, because that record is what restores PRO when you reinstall. To have it deleted, email us with your Google Play order ID (it starts with "GPA."); PRO will then no longer be restored automatically.
Depending on where you live — including the EEA and the UK under the GDPR, and California under the CCPA/CPRA — you may have rights of access, correction, deletion, portability and objection over personal data.
The only personal data we hold is the purchase record described in section 5; to access or delete it, email us with your Google Play order ID. Everything else is on your device, where you can view, export or delete it yourself at any time. For advertising and analytics data held by Google, use the choices described in section 7 or contact Google directly.
If this policy changes materially, the updated version will be published on this page with a new date at the top.
Questions about this policy? Email us at luckyhanstudio2@gmail.com.