Privacy Policy

Last updated: April 1, 2026

Chk-in ("we," "our," or "the app") is a personal coaching companion that helps fitness coaches and their clients track progress, communicate, and stay accountable. This policy explains what data we collect, how we use it, and your rights.

1. What Data We Collect

When you use Chk-in, we may collect:

• Account information: name, email address, and password (hashed)
• Body metrics: weight, body measurements, and related fitness data you enter
• Progress photos you upload
• Nutrition and calorie tracking data
• Weekly check-in responses and notes
• Device information for push notification delivery

2. How We Use Your Data

Your data is used exclusively to:

• Provide the coaching service between you and your coach
• Display your progress history and trends within the app
• Send you check-in reminders and coaching notifications via push notifications or email
• Improve the functionality and performance of the app

We do not sell, rent, or share your personal data with any third parties for advertising, analytics, or any other purpose.

3. Who Can Access Your Data

Your data is visible only to you and your assigned coach. Coaches can view your check-ins, progress photos, body metrics, and nutrition logs to provide personalized guidance. No other users or coaches can see your data.

4. How Your Data Is Stored

All data is stored securely in Supabase, a cloud database platform with enterprise-grade security. Data is encrypted in transit (TLS) and at rest. Progress photos are stored in secure cloud storage with signed, time-limited access URLs — direct file paths are never exposed.

Access to the database is protected by Row Level Security (RLS) policies, ensuring that queries can only return data belonging to the authenticated user or their assigned coach.

5. Email Communications

We use Resend to deliver transactional emails such as account setup, password resets, and coaching notifications. Your email address is shared with Resend solely for the purpose of delivering these messages. We do not send marketing emails.

6. Push Notifications

Chk-in may send push notifications to remind you of upcoming check-ins or relay messages from your coach. You can disable push notifications at any time through your device settings.

7. Your Rights

You have the right to:

• Access all personal data we hold about you
• Correct any inaccurate information
• Delete your account and all associated data — you can do this directly from Settings in the app, or by emailing us
• Export your data in a portable format upon request

To exercise any of these rights, use the account deletion feature in the app (Settings → Delete My Account), contact your coach directly, or email us at the address below. Deletion requests will be processed within 30 days.

8. Data Retention

We retain your data for as long as your coaching relationship is active. If you delete your account, all personal data including check-ins, bodyweight logs, progress photos, and meal plans are permanently removed. Anonymized, aggregated usage statistics may be retained for service improvement.

9. Children's Privacy

Chk-in is not intended for children under 13. We do not knowingly collect data from children under 13. If you believe a child has provided us with personal data, contact us and we will delete it.

10. Changes to This Policy

We may update this policy from time to time. If we make significant changes, we will notify you through the app or via email. Your continued use of Chk-in after changes constitutes acceptance of the updated policy.

11. Contact

If you have questions about this privacy policy or your data, contact us at:
coach@chk-in.fit