The short version
Spin4 works without an account. Wheel choices, names, and results stay on your iPhone and are not sent to Westerby Labs LLC, RevenueCat, or Sentry. Spin4 has no advertising or general usage-analytics SDK. RevenueCat processes anonymous purchase information for the one-time Lifetime Unlock, and Sentry processes privacy-minimized crash and error diagnostics.
Information in the app
Choices and wheel history
Spin4 stores wheels you have spun locally on your device so you can edit and spin them again. A saved wheel can include option labels, an optional name, an internal random identifier, and the date it was last spun. Spin4 keeps up to 50 wheels and does not keep past winning results. We do not receive a copy of this information.
Purchases
Apple processes payment, refund, and restore activity. RevenueCat receives an anonymous App User ID, app/device technical information, and Apple purchase information to validate the transaction, restore access, provide the entitlement, prevent fraud, and report aggregate purchase performance. Spin4 does not send RevenueCat names, email addresses, advertising identifiers, attribution data, or wheel content.
Diagnostics
Sentry receives privacy-minimized crash and fixed handled-error diagnostics used only to diagnose reliability problems. Default personal information, stored IP addresses, identity, replay, screenshots, attachments, performance tracing, profiling, breadcrumbs, and family-entered content are disabled or removed. Sentry events expire after 30 days under the launch Developer plan.
No account or cloud sync
Spin4 has no account, profile, or cloud synchronization. Deleting the app removes its locally stored app data from that device, subject to Apple’s device and backup behavior.
Information on this website
This is a static website. It has no account, contact form, cookies, advertising, or analytics. If you email support, your email provider and ours process the message, and we use the information you send only to respond, troubleshoot, protect the service, or meet legal obligations. The site’s hosting provider may process routine request information, such as an IP address and browser details, to deliver and secure the site under its own privacy terms.
Children and families
Spin4 is designed for a parent or other adult to prepare choices and share one device with a child. The app does not ask a child for a name, email address, account, or other contact information, and we do not knowingly collect personal information from children through the app.
Your choices and rights
You can delete one saved wheel or use For grown-ups → Support & data → Delete all wheel history. Deleting Spin4 removes its local app data from that device; an older Apple-managed backup may retain an earlier copy under Apple’s settings. Depending on where you live, you may also have rights concerning information processed by our service providers or sent to us directly. Contact us to request available access, correction, or deletion.
Contact and changes
Questions or privacy requests: privacy@westerbylabs.com. Support: support@westerbylabs.com. Legal notices: Westerby Labs LLC, 202 N Cedar Ave, Ste 1, Owatonna, MN 55060-2306, United States. We may update this policy when Spin4 or its data practices change; the date above will change when we do.