Last updated: 11 July 2026
Huelines is operated by Jordan Braiuka ("we", "us"), built to be private by design.
On-device (free): the Basic engine turns your photo into a coloring page entirely on your device using Apple's Vision and Core Image frameworks. The photo never leaves your phone.
AI generation (optional, paid): the single photo you select is sent securely to our AI provider, Black Forest Labs (via the FLUX API), which returns the coloring page. We do not keep your photo after the page has been made, and we do not use it to train any model.
Subscription status — managed by Apple; we receive only what's needed to unlock AI features.
Photos you select for AI generation — sent to Black Forest Labs to create the page (see above); not stored by us afterwards.
Basic diagnostics — if enabled, to keep the app stable.
We don't sell your data. We don't upload your whole photo library — only the specific photo you pick, and only when you use an AI engine. We don't use your photos to train our own models.
Ordering a printed book is not currently offered in the app. If we add it, this policy will be updated first to disclose the checkout and print partners involved before the feature is enabled.
Depending on where you live (including under the Australian Privacy Act and the GDPR) you may request access to or deletion of your personal data. Contact huelinesapp@gmail.com.
Coloring pages live in the app on your device until you delete them. We do not retain copies of photos sent for AI generation once the page has been returned.
These third parties process limited data on our behalf, only for the purpose listed:
Apple — app distribution and subscription billing (StoreKit / In-App Purchase). Data: subscription/purchase status.
Black Forest Labs (FLUX API) — AI coloring-page generation, when you choose the FLUX Klein engine. Data: the single photo you select for that generation.
The current version of this policy is always available at huelines.pages.dev/privacy.html.