Plain English.
The short version. Hueful doesn't require an account. It doesn't track you, doesn't show ads, and doesn't sell data. Your streak and palette live on your device. The only thing that leaves the app is a request to fetch each day's puzzle.
What this covers. The Hueful iOS app and the website at hueful.app. Both are made by J&B Creations LLC.
What stays on your device
The app keeps the following locally, in iOS's standard app sandbox:
- Your streak and your daily results (target color, your guess, ΔE score)
- Your growing palette (the colors you've completed)
- App settings (notification time, sound on/off, haptics, theme preference)
- Hueful Plus entitlement (whether you've subscribed)
None of this is transmitted to us. If you delete the app, this data is removed by iOS.
What leaves your device
Two things, both minimal:
- Daily puzzle fetch. When you open the app, it requests today's puzzle from our Cloudflare Worker at
api.hueful.app. The server returns the day's target colors. No identifying information is sent in this request other than the standard HTTP metadata your device sends to any web server (IP address, user-agent string), which Cloudflare's standard request logs retain for up to 7 days for abuse prevention and then discard. - Subscription verification (only if you subscribe). If you purchase Hueful Plus, the App Store handles the transaction. The app verifies your receipt to know whether to unlock Plus features. We do not receive your name, email, or payment information from Apple.
iCloud sync (future)
Future versions of Hueful may offer optional iCloud sync so your streak and palette move with you across devices. If we ship this, it will be opt-in, the sync uses your private iCloud container (we never see the contents), and this section will be updated before that feature is released.
No analytics, no tracking
The Hueful iOS app includes no third-party analytics SDKs, no advertising SDKs, no behavioral trackers, and no fingerprinting. We do not embed Google Analytics, Facebook SDK, Firebase, Amplitude, Mixpanel, or any equivalent. We don't track device identifiers.
The website at hueful.app uses Cloudflare's standard request logging (server side, retained ~7 days) for security and performance. No client-side tracking, no cookies for analytics, no Meta Pixel.
Subscriptions & payments
Hueful Plus is a subscription handled entirely by Apple via the App Store. Apple processes payment, manages billing, handles refunds per their policies, and provides us only with an anonymized entitlement flag (yes/no on Plus). We never see your name, email, or payment method.
Share tiles
When you tap Share at the end of a daily session, the app generates a 1080×1080 image on your device using only your local result data and hands it to iOS's native share sheet. We don't see what you shared or who you shared it with.
Sub-processors
These are the services we rely on. We share only what's strictly needed for each one to do its job.
| Provider | Purpose | What they see |
|---|---|---|
| Cloudflare | Daily puzzle delivery (Worker), website hosting (Pages) | Standard HTTP request metadata (IP, user-agent); 7-day retention |
| Apple | App distribution, subscription billing, push notifications, iCloud sync (future) | Apple's standard App Store / iCloud data, never shared with us in identifiable form |
Notifications
If you opt in to daily reminder notifications, iOS handles delivery locally. Notification scheduling happens on-device. We don't send push notifications from our servers.
Data retention & deletion
Since we don't store personal data on our servers, there is nothing to delete from our side. To remove all local data, delete the Hueful app from your device. iOS will remove the local sandbox along with the app.
The puzzle fetch request logs Cloudflare retains automatically expire within 7 days.
Children's privacy
Hueful is rated 4+ on the App Store and contains no content unsuitable for children. We do not knowingly collect personal information from anyone, regardless of age, because we don't collect personal information at all.
Changes to this policy
If we change what data the app handles (for example, when iCloud sync ships), we'll update this page and bump the effective date at the top. Material changes will also be flagged in the app's release notes.
Contact
Real questions: [email protected]. We reply.