Lockin

Privacy Policy

Last Updated: June 8, 2026

App Name: Lockin

1. Overview

Lockin ("we," "our," or "us") is a mobile application that helps users track and limit screen time for selected apps using Apple's Screen Time, DeviceActivity, FamilyControls, and ManagedSettings frameworks, and offers an optional leaderboard where users with the lowest screen time can win prizes.

This Privacy Policy explains what data we collect, how we use it, and your rights. By using Lockin, you agree to this Privacy Policy.

2. Information We Collect

A. Phone Number (Authentication Only)

We collect your phone number when you create an account. Your phone number is used only for:

  • One-time password (OTP) SMS verification
  • Account authentication and security

We do not use phone numbers for advertising or marketing purposes.

B. Screen Time / Device Usage Data

Lockin uses Apple's Screen Time, DeviceActivity, FamilyControls, and ManagedSettings frameworks to provide core functionality. Per Apple's requirements, raw data from these frameworks (including the specific apps you use and detailed usage events) is processed entirely on-device and is never transmitted to our servers or any third party.

For users who opt into the leaderboard, only an aggregated daily screen-time total (a single number, in minutes) is sent to our servers to compute rankings. We never upload the names or identifiers of individual apps you use, your usage timestamps, or your app categories.

We do not collect or access messages, photos, browsing history, contacts, location, or any personal content.

C. Account Information

We may collect a display name or handle (shown on the leaderboard) and authentication identifiers. You can use a pseudonym on the leaderboard.

D. Purchase Records

When you make an in-app purchase, Apple shares with us a transaction identifier and subscription/entitlement status so we can unlock features. We do not receive your name, address, or payment card details.

E. Prize Fulfillment (Winners Only)

If you win a prize on the leaderboard, we will request only the information strictly necessary to deliver the prize (e.g., email address, shipping address, or payout details). This information is used solely to fulfill the prize and is deleted after fulfillment and any required tax/record-keeping period.

3. How We Use Information

We use collected information strictly to create and secure user accounts, send SMS one-time verification codes, provide screen time tracking and enforcement features, operate the leaderboard and award prizes, process in-app purchases and entitlements, and maintain and improve app performance.

4. App Tracking Transparency

Lockin does not track you across apps and websites owned by other companies. We do not use the Advertising Identifier (IDFA), and we do not share data with data brokers or advertising networks. We do not display ads.

5. Sale of Personal Information

We do not sell or rent your personal information, and we do not share it for cross-context behavioral advertising.

6. Apple Privacy Nutrition Label Summary

  • Contact Info (phone number, and email if you win a prize): linked to you, used for App Functionality.
  • User Content (display name): linked to you, used for App Functionality.
  • Identifiers (user ID, purchase transaction ID): linked to you, used for App Functionality.
  • Usage Data (aggregated daily screen-time total, only if you join the leaderboard): linked to you, used for App Functionality.
  • Purchases: linked to you, used for App Functionality.

No data collected is used for Tracking as defined by Apple.

7. SMS Messaging and Consent

By creating an account, you consent to receive SMS messages from Lockin. These messages are limited to OTP verification codes and account authentication/security messages.

Opt-In: Users opt in during account registration when entering a phone number.

Opt-Out: Users may stop SMS by deleting their account in-app or contacting us.

We do not send marketing or promotional SMS messages. SMS is sent through Twilio (privacy policy).

8. In-App Purchases and Subscriptions

Lockin offers optional premium features and subscriptions through Apple In-App Purchase. All payments are processed by Apple under Apple's terms and privacy policy. We do not collect or store payment card details.

9. Leaderboard and Prizes

Participation in the leaderboard is optional and requires you to opt in. When opted in, your display name and aggregated daily screen-time total are visible to other users on the leaderboard. You can leave the leaderboard at any time in the app, which removes your entries from public view. Prize eligibility, selection, and any required disclosures are described in our Terms of Service.

10. Data Storage, Security, and International Transfers

Account and leaderboard data is stored on Supabase (privacy policy) on infrastructure that may be located in the United States or other countries. We use industry-standard encryption in transit (TLS) and at rest, and we apply reasonable technical and organizational measures to protect user data.

11. Third-Party Services

We use the following third-party services to operate Lockin:

12. Data Retention and Account Deletion

You can delete your account directly from within the Lockin app at any time (Settings → Account → Delete Account). Account deletion permanently removes your phone number, display name, leaderboard entries, and aggregated screen-time history from our systems within 30 days, except where we are required to retain limited records to comply with legal, tax, or fraud-prevention obligations.

13. Permissions

Lockin may request access to Screen Time / Device Activity and Notifications. Permissions can be disabled at any time in device settings, but some features may not function properly.

14. Children's Privacy

Lockin is not intended for children under 13 (or applicable minimum age in your region). We do not knowingly collect personal data from children.

15. Your Rights

Depending on your location (including under GDPR and CCPA), you may have rights to access, correct, delete, or port your data, to withdraw consent, and to lodge a complaint with a supervisory authority. To exercise these rights, contact us at the email below.

16. Changes to This Policy

We may update this Privacy Policy from time to time. Updates will be posted within the app with a revised "Last Updated" date.

17. Contact Us

Email: support@lockin.llc