MassBlocker Privacy Policy

MassBlocker ("the app", "we", "us") is an Android app that helps you block distracting apps until you complete a real-world unlock action. This policy explains what the app accesses, why, and what happens to your data. It is written to be read — not to bury the important parts.

The short version: MassBlocker does its core work on your device. It needs certain Android permissions to block apps, but the information those permissions expose stays on your device and is used only to make blocking work. We do not sell your data, we do not share it with advertisers, and we do not build a profile of you.

1. Who we are

MassBlocker is operated by Epyphite Pte. Ltd. (UEN 202011664K), a company registered in Singapore. For any privacy question or request, contact [email protected].

2. The permissions we use and why

Accessibility Service. MassBlocker uses Android's Accessibility Service to detect when you open an app you've chosen to block, and to show the lock screen over it. This is the mechanism that makes blocking possible. MassBlocker does not use the Accessibility Service to read the content of your screen, collect the text you type, capture passwords, or monitor what you do inside any app. It uses it only to know which app has come to the foreground so it can enforce the blocks you set.

Usage Access (UsageStatsManager). MassBlocker uses Usage Access to see which apps are running in the foreground, so it can apply your block rules and enforce cooldowns. This tells the app which app is open — not what you do inside it. This usage information is processed on your device to enforce blocking and is not transmitted to us or to anyone else.

Both permissions are used solely to deliver the app's blocking function. You can revoke either at any time in Android settings, though the app cannot block apps without them.

3. What data stays on your device

• The list of apps you've chosen to block
• Your unlock rules (QR codes, cooldown settings, daily caps, PIN if you set one)
• Your lock and unlock history
• Which apps are currently in the foreground (used momentarily to enforce blocks, not retained as a history sent to us)

If you never create an account, MassBlocker functions entirely on your device and sends us no personal data.

4. What data we collect

Account information (Pro / Family users). If you upgrade to Pro or Family, we collect the email address you use to create your account via magic-link authentication, so we can link your entitlement to your device(s) and enable family sharing.

Purchase information (Pro / Family users). Pro and Family subscriptions are purchased through Stripe, our payment processor, on the web — not through Google Play billing. Stripe handles your payment-card details directly — we never see or store your card number. We receive confirmation of your purchase and a customer reference.

Family sharing (if you use it). If you invite family members, we process the invite and the accounts that accept it. We store the household link, not the contents of anyone's usage.

Anonymous usage analytics. MassBlocker collects anonymous, pseudonymous usage analytics via Google Analytics for Firebase to help us understand how the app is used and to improve it. These analytics:

• Do not include your name, email address, or user account identifier
• Do not use the Android Advertising ID (it is disabled)
• Include events such as screen views, feature usage counts, and crash/error reports
• Are associated with a pseudonymous Firebase instance ID, not with you personally

The purpose of analytics is to run and improve the service — for example, to know which features are used, where users run into errors, and how app performance can be improved. The data processor is Google (Firebase). Analytics data is not combined with personal account data.

We do not collect your location, your contacts, your photos, the content of your screen, or what you do inside other apps.

5. Your controls

6. How we use data

• Provide and enforce the blocking features you set up
• Activate and manage your Pro or Family subscription and family sharing
• Respond to your support requests
• Improve the app based on anonymous usage patterns (analytics)

We do not use your data for advertising, we do not sell it, and we do not share it with third parties for their own purposes.

7. Data sharing

We do not sell your personal data. We do not share it with advertisers or data brokers. Data is shared only with:

• Stripe — to process Pro and Family payments (web checkout only).
• Google/Firebase — anonymous usage analytics, when analytics is enabled.
• Our hosting/infrastructure providers — to run the account and entitlement service.

8. Data security

Data transmitted between the app and our services is encrypted in transit (HTTPS/TLS). Account and entitlement data held on our servers is access-controlled. On-device data is protected by Android's app sandboxing. Analytics data is transmitted to Firebase over encrypted channels.

9. Data retention and deletion

On-device data lives on your device until you delete it or uninstall the app. Account and subscription data is retained while your account is active. Analytics data is retained for up to 14 months and is not linked to your personal identity.

You can request deletion of your account and associated data at any time — in the app (Account → Delete account) or by contacting [email protected]. We will delete your account data, subject to any records we must retain for legal or accounting reasons. Uninstalling the app removes on-device data.

10. International users

MassBlocker is operated from Singapore. If you use the app from outside Singapore, your data may be transferred to and processed in Singapore and in the jurisdictions of our service providers (including the United States for Firebase/Google).

European Union (GDPR). If you are in the EU/EEA, your rights under the General Data Protection Regulation include the right to access, rectify, erase, restrict processing of, and port your personal data, and to object to processing. Our legal basis for processing account data is contract performance (delivering the service you signed up for); for analytics, legitimate interest in improving the app, balanced by the pseudonymous nature of the data and the in-app opt-out. To exercise your rights, contact [email protected].

India (DPDP Act 2023). If you are in India, you have the right to access, correct, and erase your personal data, and to nominate another person to exercise these rights. You may withdraw consent for analytics collection at any time via the in-app Privacy screen. Grievances may be directed to [email protected]; we will respond within 30 days.

11. Children

MassBlocker is an adult self-limitation and focus tool. It is not directed at children under 13. Where a parent uses family sharing to manage a minor's device, the parent is the account holder and is responsible for the minor's use.

12. Changes to this policy

If we change what the app collects or how we use it, we will update this policy and its "last updated" date, and update our Play Store Data safety declaration to match.

13. Contact

Questions or requests: [email protected]

Epyphite Pte. Ltd. · 160 Robinson Road, #14-04 · Singapore 068914

14. Data Protection Officer

EPYPHITE PTE. LTD. (UEN 202011664K) has appointed a Data Protection Officer responsible for ensuring our compliance with the Personal Data Protection Act 2012.

Contact our DPO to request access to or correction of your personal data, to withdraw consent, or to raise a concern about how we handle personal data. We will respond within 30 days.