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Privacy Policy

Eyezo — Eye Care & Screen Time Tracker  ·  Last updated: April 14, 2026

Eyezo ("we," "our," or "the app") is developed by Shanu Tyagi. This Privacy Policy explains how we collect, use, and protect your information when you use Eyezo. The app is available in 17 languages.

By using Eyezo, you agree to the collection and use of information as described in this policy.

1. Information We Collect

1.1 Account Information

When you create an account, we collect:

  • Email address — for account creation, login, and password recovery
  • Name — for personalizing your experience (optional)
  • Profile picture — if you sign in with Google or Apple (optional)

1.2 Usage Data (Stored Locally Only)

The following data is collected and stored only on your device. It is never sent to our servers:

  • Screen time statistics — how long you use each app, tracked via Android's UsageStatsManager
  • Screen time limit — your daily screen time limit setting and notification preference
  • Installed app list — to let you customize per-app break settings
  • Timer state — remaining countdown time
  • Break events — individual break activity with timestamps, stored for 14 days and automatically deleted
  • App categorization — apps are automatically sorted into categories (entertainment, games, social, etc.) using Android's app classification. Category assignments, reminder mode preferences, and schedules are stored locally only
  • App preferences — theme choice, reminder interval, break mode, sound settings
  • Exercise usage — which eye exercises you complete and their duration. This data is stored locally only and is never sent to our servers
  • Nutrition favorites — foods you mark as favorites in the Nutrition screen. Stored locally only and never sent to our servers

1.3 Eye Care Activity (Synced to Server)

We collect minimal aggregated data to maintain your streak across devices:

  • Daily summary — total breaks followed and skipped per day (counts only, no timestamps)
  • Streak count — your consecutive days of eye care activity

Individual break events and timestamps are stored only on your device and are automatically deleted after 14 days. We do not collect which specific app you were using when a break was triggered.

1.4 Language Pack Downloads

Eyezo supports 17 languages. When you select a language, the app downloads the corresponding language pack from our server. Only the language code (e.g., "fr", "de", "zh-CN") is sent to our server to determine which pack to deliver. No personal data is transmitted during this process.

1.5 Device Information

  • Device model and OS version — for compatibility and crash reporting
  • App version — to ensure you have the latest features

1.6 Feedback & Support

If you submit feedback, we collect your message.

2. Information We Do NOT Collect

  • We do not access your camera or microphone
  • We do not read your messages, emails, or personal files
  • We do not track your location
  • We do not sell your data to third parties
  • We do not share your personal information with advertisers
  • We do not collect browsing history or website data
  • We do not send individual break event timestamps to our servers
  • We do not record any audio — Text-to-Speech runs entirely on-device using Android's built-in engine
  • We do not access or record any media content — media is paused during breaks using Android's AudioManager only

3. How We Use Your Information

  • To provide the 20-20-20 eye break reminder service
  • To show your eye care analytics and compliance score
  • To manage your account and subscription
  • To send break reminder notifications (which you can disable)
  • To notify you when your daily screen time limit is reached (if enabled)
  • To improve app stability through crash reports
  • To respond to your feedback and support requests
  • To serve the correct language pack when you change your language preference

4. Permissions We Request

4.1 Usage Access Permission

Eyezo uses Android's UsageStatsManager to track how long you spend in each app. This data stays on your device and is used solely to determine when you need an eye break and to show your screen time statistics. We never upload per-app usage data to any server.

4.2 Display Over Other Apps

This permission allows Eyezo to show the eye care overlay on top of whatever app you're using. The overlay only appears when your break timer reaches zero. When a break begins, Eyezo uses Android's AudioManager to pause any active media playback. No media content is accessed, read, or recorded — the system simply signals the audio focus to pause.

4.3 Notification Permission

Used to send you break reminders, pre-break notifications, and daily screen time limit alerts. You can disable notifications at any time in your phone's settings.

4.4 Text-to-Speech

Eyezo uses Android's built-in Text-to-Speech engine for voice announcements during breaks — including countdown audio, blink guidance, and pre-break announcements. This feature runs entirely on-device using the TTS engine already installed on your phone. No audio is recorded, no voice data is captured, and nothing is transmitted to any server. You can disable voice announcements in Settings at any time.

5. Third-Party Services

5.1 Firebase (Google)

  • Firebase Authentication — for secure login (Google Sign-In, Apple Sign-In, email/OTP)
  • Firebase Crashlytics — for crash reporting and app stability
  • Firebase Analytics — for anonymous usage statistics (no personal data)
  • Firebase Cloud Messaging — for push notifications

Firebase's privacy policy: firebase.google.com/support/privacy

5.2 Advertising Networks

Free users may see ads served by one or more of the following advertising networks. Premium users do not see any ads.

These networks may collect device identifiers (advertising ID) for ad personalization and frequency capping. You can reset or opt out of personalized ads in your device's Google Settings → Ads. We do not share your account data, eye care activity, exercise data, nutrition data, or any health information with these networks.

5.3 Google Play Billing

Subscription payments are processed by Google Play. We do not collect or store your payment information (credit card, UPI, etc.). All payment data is handled by Google.

6. Exercise & Wellness Feature

Eyezo includes 9 guided eye exercises: Blink Reset, Distance Break, Gentle Gaze, Focus Shift, Circle Glide, Focus Flex, Dark Rest, Warm Compress, and Posture & Stretch.

Exercise usage (which exercises you do and when) is stored locally only. It is never sent to our servers and is not linked to your account. These exercises are wellness guidance only — they are not a substitute for medical advice.

7. Nutrition Information

The Nutrition tab displays educational information about 38 foods and 10 nutrients relevant to eye health. This content is based on claims reviewed and approved by the European Food Safety Authority (EFSA).

Eyezo does not collect, log, or store any dietary intake data. There is no food diary, calorie counter, or intake tracker. You may mark items as favorites; these favorites are stored locally on your device only and are never sent to any server.

The nutrition information in Eyezo is provided for educational awareness purposes only. It is not medical advice and should not be used as a substitute for advice from a qualified healthcare professional. The app does not diagnose, treat, cure, or prevent any eye condition or disease.

8. Language & Translations

Eyezo supports 17 languages: English, Spanish, French, German, Simplified Chinese, Traditional Chinese, Russian, Japanese, Korean, Hindi, Arabic, Brazilian Portuguese, Indonesian, Vietnamese, Turkish, Italian, and Polish.

Your language preference is stored locally on your device. Translation strings are downloaded from our server on demand and cached locally. No personal data is transmitted as part of this download.

9. Data Storage & Security

  • Account data is stored on secure servers with encryption in transit (HTTPS/TLS)
  • Passwords are hashed using industry-standard algorithms (bcrypt)
  • Authentication tokens are stored in encrypted device storage
  • Screen time data, break events, exercise usage, nutrition favorites, and app preferences are stored locally on your device only
  • Local break event data is automatically deleted after 14 days
  • We implement reasonable security measures to protect your data

10. International Data Transfers

Eyezo operates globally. Your account data may be processed and stored on servers located outside your country of residence, including the United States (where our hosting provider Heroku operates). By using Eyezo, you consent to the transfer of your information to these locations.

For users in the European Economic Area (EEA), United Kingdom, or Switzerland: when your data is transferred outside your region, we rely on appropriate safeguards including Standard Contractual Clauses (SCCs) approved by the European Commission, and our hosting providers' participation in recognised data protection frameworks.

11. Data Retention

  • Account data is retained as long as your account is active
  • Daily summary data (aggregated counts) is retained on the server for analytics
  • Local break events are automatically deleted after 14 days
  • Feedback data is retained to improve the app
  • Local device data is deleted when you uninstall the app

12. Your Rights

Depending on your location, you have the following rights regarding your personal data:

  • Right of access — request a copy of the personal data we hold about you
  • Right to rectification — correct any inaccurate or incomplete information
  • Right to erasure ("right to be forgotten") — delete your account and all associated data
  • Right to restrict processing — pause how we use your data while a dispute is resolved
  • Right to data portability — receive your data in a structured, machine-readable format (JSON)
  • Right to object — opt out of specific processing activities such as analytics or advertising
  • Right to withdraw consent — revoke any consent you previously granted, at any time

To exercise any of these rights, go to Settings → Account → Delete Account in the app, or email us at eyezo.app@gmail.com. We will respond within 30 days.

Right to Lodge a Complaint

If you are located in the European Economic Area, United Kingdom, or Switzerland and believe we have not handled your data in accordance with applicable law, you have the right to lodge a complaint with your local data protection authority. You can find your authority at edpb.europa.eu.

13. California Residents (CCPA / CPRA)

If you are a California resident, the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA) grant you additional rights:

  • Right to know what personal information we collect, use, and share
  • Right to delete personal information we hold about you
  • Right to correct inaccurate personal information
  • Right to opt-out of sale or sharing — we do not sell your personal information, and we do not share it for cross-context behavioural advertising
  • Right to non-discrimination — we will not deny service, charge different prices, or provide a lower quality of service because you exercised your privacy rights
  • Right to limit use of sensitive personal information — we do not use sensitive personal information for purposes other than providing the service

To exercise any of these rights, email us at eyezo.app@gmail.com with the subject line "CCPA Request". We will verify your identity and respond within 45 days.

14. Children's Privacy

Eyezo is not directed at children under 16. We do not knowingly collect personal information from children under 16. If you believe a child under 16 has provided us with personal information, please contact us and we will delete it promptly.

Users aged 16–17 may use Eyezo with parental awareness. The app promotes healthy screen habits and does not contain inappropriate content.

15. Advertising

Eyezo's free version displays ads through third-party advertising networks including Google AdMob, Meta Audience Network (Facebook), and Unity Ads. These networks may personalize ads based on your device's advertising ID, which you can reset or opt out of in your device settings. Premium subscribers enjoy an ad-free experience.

We do not use your eye care data, screen time data, exercise data, nutrition data, or any health information for advertising purposes.

16. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes through the app or via email. The "Last updated" date at the top reflects the most recent revision.

17. Contact Us

If you have any questions about this Privacy Policy or your data, contact us at:

© 2026 Eyezo by Shanu Tyagi. All rights reserved.