Privacy Policy

Effective: November 1, 2026

Spin Journal ("the app") is published by Slate 360 LLC. It is a journal for hand spinners.

Your journal on your device

Spin Journal works fully without an account. Everything you enter — projects, your fiber stash, photos, skeins, notes and your lists — is stored on your device. It leaves your device only if you choose: by subscribing to Spin Journal Cloud and signing in, or by making a backup file, which is saved wherever you choose. Your phone's own backup (iCloud or Google) may include it, under Apple's or Google's terms.

Spin Journal Cloud (optional, paid)

If you subscribe to Spin Journal Cloud and sign in, your journal is copied to our cloud so it stays in step on your devices and on the Spin Journal website. Then we store:

• Your email address, to identify your account and to reset your password.
• Your journal — projects, your fiber stash, skeins, notes, lists and preferences.
• Photos — a standard-size copy of each photo in your journal. Full-size originals of photos taken in the app stay on your device; photos added on the website are kept only at that standard size.
• Subscription status, so Cloud works on all your devices.

This is stored with Supabase, our database and storage provider. It is protected at the database level so that no other account can read it.

Purchases

Purchases are made through Apple or Google; we never receive your card details. Apple and Google keep their own records of your purchases, under their own privacy policies.

We use RevenueCat to confirm purchases and subscriptions — including Pro bought without an account. RevenueCat receives the store's purchase receipt, an ID the app makes up at random (or your account ID, if you're signed in) and basic technical details such as the app version, device type and operating system. It never receives your journal. We also keep a copy of the purchase notices RevenueCat sends our server (which product, when, and the account or random ID it belongs to), so your plan is right on every device; they're deleted with your account.

Technical data

When the app or our websites contact our services, those services receive your IP address and similar connection details as part of handling the request, and may keep short-lived logs (for example, of errors) for security and to fix problems. We don't use them for advertising or to build a profile of you.

Who can see your data

We don't sell your information, show ads, or track you across other apps and websites. A few providers run parts of the service for us and process data only on our behalf:

• Supabase — Cloud accounts, the database and photo storage.
• Vercel — hosting for spinjournal.app and the Spin Journal website app.
• RevenueCat — confirming purchases and subscriptions.
• Email delivery — sign-up and password-reset emails are sent through Supabase or an email delivery service working for us, which receives your email address and the message.
• Apple and Google — payments and subscriptions, under their own terms.
• Google Fonts — the website's typefaces. Our website loads its typefaces from Google Fonts, so your browser asks Google's servers for them, which shares your IP address with Google, under Google's privacy policy. Google says it doesn't use this to profile visitors. The app doesn't do this.

No other Spin Journal account can see your data. We, and our providers' staff, can access it only when needed to run, secure or support the service — for example, when you ask us for help.

Deleting your data

• On your device: delete projects in the app, or delete the app. Backup files you've made are yours to keep or delete.
• Your account: delete it in the app (Settings → Cloud sync → Delete account) or as described on spinjournal.app/delete-account. This permanently deletes your account, your email address, and your journal and photos in our cloud. Copies on your own devices and backup files you've made aren't touched.
• What stays elsewhere: Apple's and Google's records of your purchases stay with them; we can't delete those. RevenueCat keeps its own record of your purchases — email us if you'd like us to ask RevenueCat to delete it. Our providers' short-lived technical logs may remain for a limited time until they expire.
• Subscriptions: deleting your account doesn't cancel a subscription — cancel it in your App Store or Google Play account.
• If Cloud ends: your cloud copy stays available for you to bring down to a device for at least 90 days. After that we may delete it. The copy on your devices is never affected.

Children

Spin Journal isn't directed at children under 13.

Changes

If this policy changes in a meaningful way, the app will say so.

Contact

Questions? Email support@spinjournal.app.