// HueVaultPicker is an offline colour-palette generator that turns a base hue into a five-colour palette using classic colour-theory rules, lets you tune each swatch by hand, and keeps the palettes you like in a vault on your device.
[01] Information collected // inputs
None. There is no sign-up, no sign-in, and no analytics. The app never asks for your name, email address, phone number, or any other personal detail, and it gathers no information about you or your device.
The display name and avatar you can set on the Profile screen are labels for your own use. They are written to your device's local storage and are visible only to you.
[02] Local storage // on-device
Everything the app saves lives in a local database (Hive) inside the app's private storage area, never uploaded:
- Palettes you save: their colour values, name, tags, and the harmony rule used
- Vault filing records: when each palette was saved and any note you attached
- Which palettes you marked as favourites
- Your display name and chosen avatar
- Your preferences: copy format (hex / RGB / HSL), swatch code labels, hue snapping, reduced motion
- Counters behind the in-app achievements: palettes saved, colour codes copied, and palettes generated
This data is created by you, never leaves the device, and is not backed up by us anywhere. Uninstalling the app deletes every byte.
[03] Permissions // runtime
None. HueVaultPicker requests no runtime permissions — no camera, location, microphone, contacts, photos, storage, or notifications. The Android manifest declares no permissions and the iOS build requests none.
[04] Network // egress
The app is fully offline. It opens no network connections, contacts no servers, and works in airplane mode. No data about you or your palettes is ever transmitted off the device.
The one exception is entirely under your control: when you tap Share, the app hands the palette text to your device's standard system share sheet. Whatever you then do with it — send it in a message, paste it into another app — happens outside HueVaultPicker, and the app itself sends nothing on your behalf.
[05] Third parties // vendors
No third-party analytics, advertising, crash-reporting, or tracking SDKs are integrated. There is no billing or in-app-purchase library. The app uses only local, on-device Flutter packages (Hive for storage, and the OS share sheet), none of which send data to us or to any third party.
[06] Children // coppa/gdpr-k
HueVaultPicker is safe for all ages. Because it collects no personal information and transmits nothing, it raises no COPPA or GDPR-K concerns. It is not directed at children specifically, but contains nothing unsuitable for them.
[07] Your rights // you
Because all of your data stays on your device, you are always in full control of it. You can delete individual palettes in the app at any time, and uninstalling HueVaultPicker permanently removes all of its stored data. There is nothing held on a server for us to access, export, or erase on your behalf.
[08] Changes // changelog
If this policy changes, the updated field at the top of this page will be revised. Material changes are also noted in the app's release notes.