1. Overview
This Privacy Policy explains how Massive Interface LLC, a Delaware limited liability company (“Massive Interface,” “we,” “us,” or “our”), handles information in connection with the Hang Time iOS application and its pages on massiveinterface.com (together, the “Service”). Hang Time does not require a Massive Interface account. We do not sell personal information, use third-party behavioral-advertising SDKs, or track you across other companies’ apps or websites.
2. Information processed by the app
- Motion and workout data. The app processes accelerometer measurements on your iPhone to estimate jump counts, airtime, pace, and active time. Raw motion measurements are not uploaded. Saved session dates, durations, individual jump measurements, and calculated statistics remain in the app's local storage.
- Your profile and preferences. Gender (optional), height, weight, preferred units, experience, goals, onboarding state, and workout history are stored on your iPhone. Calorie estimates use your weight and detected jumping pace. Gender and height do not change that formula. A session retains the profile used when it was recorded. We do not upload your profile or workout measurements to an analytics or purchase provider. The app does not read or write Apple Health data.
- App analytics. Google Analytics for Firebase measures general app interactions, such as screen views and purchase-related interactions. It may process app-instance identifiers, device and app information, purchase-related events, diagnostic information, and approximate location derived from an IP address. We do not send gender, height, weight, or workout measurements as analytics events or user properties.
- Purchases and RevenueCat. Apple processes payment credentials and App Store transactions. RevenueCat retrieves products, validates and restores HangTime Pro weekly subscriptions, lifetime purchases, and legacy Remove Ads purchases, and maintains entitlement status. RevenueCat may process an automatically generated anonymous app-user identifier, IP address, app and device information, product and transaction data, purchase receipts, entitlement state, and diagnostics. We do not receive your full payment-card number.
- Support communications. If you contact us, we receive your email address and whatever information you choose to include. We use it to respond, keep support records, prevent abuse, and comply with law.
3. Ads and external links
HangTime currently does not display house ads to any user. The app links to external pages, including these policies and Apple’s purchase services. When you open an external page, its provider may process the interaction under its own terms and privacy policy. A legacy Remove Ads entitlement remains recognized if house ads return.
4. Website information
When you visit massiveinterface.com, our hosting and security providers may automatically process ordinary request data such as IP address, browser type, device type, requested page, referring page, and timestamps to deliver and secure the site. If site analytics are enabled, they may also measure aggregate visits and interactions. Browser controls may let you limit cookies or similar storage.
5. How we use information
We use information only as reasonably necessary to provide and support the Service, calculate and display workout estimates locally, understand general app usage, process and restore purchases, troubleshoot problems, protect the Service and users, enforce our terms, comply with legal obligations, and establish or defend legal claims. Depending on where you live, our legal bases may include performing our contract with you, your consent, compliance with law, and our legitimate interests in operating and securing the Service.
6. Disclosure
We may disclose information to Apple, RevenueCat, Google Analytics for Firebase, hosting and support providers, professional advisers, and other vendors that process it for the purposes above; to authorities or other parties when reasonably necessary to comply with law or protect rights, safety, and security; or in connection with a merger, financing, acquisition, bankruptcy, reorganization, or sale of assets. We do not sell or share personal information for cross-context behavioral advertising.
7. Retention
Local data remains on your device until you clear it in the app, reset the app’s data, or delete the app, subject to iCloud or device backups controlled by you and Apple. We retain support correspondence and necessary business, transaction, security, and legal records only as long as reasonably needed for the purposes described above. Apple, RevenueCat, Google, and website infrastructure providers apply their own retention periods.
8. Your choices and rights
You may edit your profile, delete individual sessions, or choose Delete profile and all data in Profile. You may also delete the app, avoid external links, restore eligible purchases, manage subscriptions in your Apple Account, or contact Apple about transaction records. Deleting local app data does not cancel a subscription or delete records held by Apple or RevenueCat. Depending on your location, you may have rights to request access, correction, deletion, restriction, objection, portability, or withdrawal of consent for personal information we control, and to appeal or complain to a regulator. These rights may be subject to lawful exceptions. Email info@massiveinterface.com to make a request. We may need to verify it.
9. Children
The Service is a general-audience fitness app and is not directed to children under 13. We do not knowingly collect personal information directly from children under 13. A parent or guardian who believes a child provided personal information directly to us may contact us so we can review and, where required, delete it.
10. Security and international processing
We use reasonable administrative, technical, and organizational safeguards appropriate to the nature of the information, but no method of storage or transmission is completely secure. Providers may process information in the United States and other countries, which may have different data-protection laws than your country. Where required, we use recognized transfer mechanisms.
11. Third-party policies
Apple, RevenueCat, and Google operate under their own privacy terms. Their practices are not controlled by this Policy. You can review Apple’s Privacy Policy, RevenueCat’s Privacy Policy, and Firebase privacy information.
12. Changes and contact
We may update this Policy to reflect changes to the Service, providers, or law. We will post the current version here and revise the date above; additional notice will be provided when required. Questions and privacy requests may be sent to info@massiveinterface.com.