Idea Tiles Privacy Policy
Idea Tiles is a hexagonal mind-mapping tool from Bridge City Lab LLC. It is designed to work locally on your device. This policy explains what data the app touches, where it goes, and what we do with it — in plain language, then in the detailed sections below.
Summary
- We do not collect personal data. No accounts are required to use Idea Tiles. No analytics SDKs, no advertising IDs, no crash-reporting third parties.
- Your boards stay on your device. They are saved to your device's local storage by default.
- iOS uses Apple Intelligence on-device. Idea generation runs entirely on your iPhone or iPad. No prompts leave your device.
- Web and Android can optionally use a cloud LLM if you supply your own API key (Gemini, Anthropic, OpenAI, etc.). When you do, your prompt is sent only to that provider. We do not relay or store it.
- Optional collaboration sessions route board changes through our server. We do not retain them after the session ends.
What the iOS app does
On iOS, Idea Tiles uses Apple's on-device Foundation Models framework (iOS 26.0 or later, on Apple-Intelligence-eligible devices) to generate idea expansions. Prompts and responses never leave your device. No content is sent to our servers, to Apple, or to any third party.
The app stores your boards, settings, and accessibility preferences in your device's local storage (the same sandbox used by every iOS app). Uninstalling the app removes them.
Files you export (PNG, SVG, JSON) are saved to your app's Documents directory, visible in Files.app under "On My iPhone → Idea Tiles." We don't read or transmit them.
What the web and Android versions do
If you choose to use a cloud language-model provider, the app sends your prompt directly to the provider you selected, authenticated with the API key you supplied. We don't proxy these calls through our infrastructure unless you've explicitly entered our shared provider key. We don't log, store, or analyse the prompts or responses.
Boards are saved to your browser's local storage by default. If you sign in with OAuth on the web, boards you choose to save to the cloud are persisted to our database so you can load them on another device.
Collaboration sessions
You can invite others to a shared board via a temporary collaboration link. While the session is open, board changes and presence cursors are relayed through our WebSocket server so all participants stay in sync. Session state is held in memory only and is discarded when the last participant disconnects. We do not record or persist session content.
Permissions on iOS
- Photos library (Save Image): requested only when you tap "Save Image" from the share sheet after exporting a PNG. Idea Tiles does not read your existing photos.
-
Universal Links: Idea Tiles responds to taps on links
to
ideatiles.app,hivemind.cx,hive-mind.pro,hexmind.app,hexmind.io,hexpand.app, andhexpander.appby opening the app instead of Safari.
Children
Idea Tiles is rated 4+. It does not collect personal information from anyone, including children under 13. We don't include third-party advertising or tracking.
Changes to this policy
If we materially change what data the app handles, we'll update this page and note the change in the in-app release notes. You can always view the current version at ideatiles.app/privacy (same document is served on legacy brand domains such as hexmind.app/privacy).
Contact
Questions, concerns, or data-deletion requests: luke@lukesteuber.com.