Privacy Policy

ShiverMeTimbers is a cold shower tracking app developed by Frederick Kihle ("I", "me", or "my"). If you have any questions about this policy, contact me at frederick.kihle@gmail.com.

If you use the app without creating an account, I collect nothing. No personal information leaves your device. Specifically, I do not collect, transmit, or store any of the following:

• Your name or email address
• Location data
• Health or biometric data
• Contacts or device identifiers
• Audio recordings (the app plays sounds but never records audio)
• Usage analytics or crash reports

All app data is stored locally on your device using standard mobile storage. It includes your session logs (date, duration, water temperature), app preferences, challenge progress, and avatar selection. This data is deleted if you uninstall the app or clear the app's data from your device settings.

If you choose to create an account, I collect your email address — used solely to authenticate your account and associate your data with you. I do not sell, share, or use your email for marketing purposes.

Your cold shower activity (session logs, duration, water temperature, challenge progress, and app preferences) is stored on my servers instead of locally. This lets you access your history across devices and powers the following features:

• Personal history & progression — your full session history and streak tracking, visible only to you
• Challenges — activity data is used to track progress in in-app challenges; when you participate in a challenge with friends, your challenge progress (not your full session history) is visible to those friends
• Reminders — if you set a daily reminder, a push notification is sent to your device at the time you choose; no data is shared externally to deliver this
• Challenge alerts — push notifications are used to inform you of activity from friends in shared challenges (e.g. when a friend completes a session)

Beyond what friends can see in a shared challenge, your data is never visible to other users. You can delete your account at any time from within the app, which will permanently remove your email and all associated data from my servers.

ShiverMeTimbers offers optional paid subscriptions (ShiverMeTimbers Pro) processed through Apple App Store and Google Play. I use RevenueCat to manage subscription status and entitlements.

RevenueCat may collect and process the following on my behalf:

RevenueCat does not receive your name, email, or payment details — those remain with Apple or Google. Read RevenueCat's privacy policy at revenuecat.com/privacy.

ShiverMeTimbers is not directed at children. I do not knowingly collect any personal information from children. If you are a parent or guardian I would advise you to consider whether this app is appropriate for your child before allowing them to use it.

Guest users are in full control of their data — it exists only on their device and is removed by uninstalling the app.

For registered accounts, I retain your email and cloud-synced activity data for as long as your account is active. You can delete your account directly in the app, which permanently removes all associated data, or contact me and I will handle it for you.

Purchase records managed by RevenueCat are retained as required to maintain your subscription entitlement and comply with Apple and Google's requirements.

Regardless of where you reside, I honour the rights set out under the General Data Protection Regulation (GDPR) for all users. These rights apply to personal data I hold about you as a registered user (your email address and cloud-synced activity data). Guest users hold no personal data on my servers, so most rights are exercised simply by clearing or uninstalling the app.

To exercise any of these rights, contact me at frederick.kihle@gmail.com. I will respond within 30 days. For purchase-related data held by RevenueCat, contact me and I will coordinate on your behalf.

The third-party services integrated into this app are limited to the following:

• RevenueCat — manages subscription status and entitlements (see Section 04)
• Apple Push Notification service (APNs) / Google Firebase Cloud Messaging (FCM) — used to deliver push notifications to your device for challenge alerts and reminders. Apple and Google handle the delivery infrastructure; no personal data beyond a device push token is involved

I may update this privacy policy from time to time. When I do, I will update the effective date at the top of this page. Continued use of the app after changes constitutes your acceptance of the revised policy.