Privacy Policy

1. Who We Are

MeetVault is developed and maintained by Crypton Studio (contact: support@cryptonstudio.app). MeetVault is an Android application that provides offline, on-device AI meeting recording, transcription, and summarization.

2. What Data We Collect

The short answer: none of your meeting content — ever.

The detailed answer:

3. How Meeting Data Is Handled

When you record a meeting in MeetVault, every step of processing occurs entirely on your device:

• Recording: Audio is captured via Android's AudioRecord API and written directly to your device's private app storage. No audio bytes are streamed or transmitted anywhere.
• Transcription: Speech-to-text is powered by Google ML Kit On-Device Speech Recognition. The audio is processed locally by the ML model running on your device. No audio is sent to Google's servers for transcription.
• AI Summaries: Summaries and action items are generated by Google ML Kit GenAI (on-device). The transcript text is processed locally — it is never sent to a cloud AI API.
• Storage: All recordings, transcripts, and summaries are encrypted using AES-256 via SQLCipher and stored in the app's private sandboxed database on your device.
• Auto-Delete: Free tier recordings are automatically deleted after 7 days. This deletion occurs locally on your device.
• Export (Pro): When you export a recording, transcript, or summary, it is saved to your device's local storage (e.g., Downloads folder). It goes nowhere else.

Your meeting content is never transmitted to any server — not ours, not anyone else's.

4. On-Device AI Processing

MeetVault's AI features are designed to work entirely offline using on-device machine learning models:

• Speech Recognition: ML Kit's on-device model handles transcription without internet access
• Summarization: Google's on-device GenAI model generates summaries locally
• No cloud API calls: We do not use OpenAI, Google Cloud Speech-to-Text, Whisper API, or any cloud-based AI service
• Model downloads: AI models may download in the background via ML Kit's model update mechanism — only model files, never your data

5. Third-Party Services

MeetVault integrates the following third-party SDKs, which may collect limited data under their own privacy policies:

Google AdMob (Free users only)
Free version displays banner and interstitial ads. AdMob may collect device identifiers and approximate location to serve relevant ads. Pro users see no ads and AdMob SDK remains inactive for ad serving.
Google Privacy Policy →

Firebase Analytics (Anonymous)
Collects anonymous usage events (e.g., screen views, feature usage counts) to help us understand how the app is used. No recording content, transcripts, or personal identifiers are included in analytics events.
Firebase Privacy Policy →

Firebase Crashlytics
Collects anonymised crash stack traces when the app crashes. No meeting content is ever included in crash reports. This helps us fix bugs and improve stability.
Firebase Privacy Policy →

Firebase Remote Config
Used to remotely configure pricing, feature flags, and free tier limits. Minimal device metadata may be transmitted to Firebase servers for config delivery.
Firebase Privacy Policy →

Google Play Billing
In-app purchases (Pro Lifetime and Pro Annual) are processed entirely by Google Play. We do not receive or store any payment information.
Google Play Privacy Policy →

6. Permissions We Request

• RECORD_AUDIO — Required to capture meeting audio. Only active when you tap the record button. Never running in background without your action.
• FOREGROUND_SERVICE — Used to display a persistent recording notification while a recording is in progress, ensuring reliable capture.
• POST_NOTIFICATIONS — To show recording-in-progress and action-item reminder notifications.
• WRITE_EXTERNAL_STORAGE / MediaStore (Pro, Android <10) — Required for the export feature to save files to your Downloads folder.
• USE_BIOMETRIC / USE_FINGERPRINT — For optional biometric unlock of the app vault.
• INTERNET — Required only for AdMob (free users), Firebase Remote Config, Firebase Analytics, and Crashlytics. Never used to transmit any recording or transcription data.
• RECEIVE_BOOT_COMPLETED — To reschedule auto-delete jobs after device reboot.

7. Data Retention & Deletion

All meeting data is stored locally on your device. Retention is controlled by you:

• Free tier: Recordings are auto-deleted after 7 days from the recording date
• Pro users: Choose auto-delete windows of 7, 30, or 90 days — or disable auto-delete entirely
• Manual deletion: Delete any recording at any time from within the app
• Full wipe: Use "Clear All Data" in Settings to remove everything
• Uninstall: Uninstalling the app deletes all app data from your device

We have no ability to delete data on your behalf because we simply don't have it.

8. Children's Privacy

MeetVault is not directed at children under 13. We do not knowingly collect any data from children. If you are a parent or guardian and believe your child has used this app, please contact us at support@cryptonstudio.app.

9. Your Rights

Since we hold no personal data on our servers, traditional data rights (access, erasure, portability) are exercised directly on your device:

• Access: All your data is visible within the MeetVault app
• Erasure: Delete individual recordings or all data from Settings at any time
• Portability: Export your recordings, transcripts, and summaries using the Export feature (Pro)

For third-party data collected by Google (AdMob, Firebase, Analytics), refer to Google's privacy tools.

10. Security

MeetVault implements the following security measures to protect your data at rest:

• AES-256 encryption via SQLCipher for all database content
• Audio files stored in the app's private directory (inaccessible to other apps)
• PIN and biometric authentication for vault access
• No internet transmission of any recording or transcript data

11. Changes to This Policy

We may update this privacy policy from time to time. Changes will be reflected with a new effective date on this page. Material changes will be noted in the app's Play Store release notes. Continued use of MeetVault after changes constitute acceptance of the updated policy.

12. Contact

Questions about this privacy policy or how MeetVault handles your data?

• Email: support@cryptonstudio.app
• Website: meetvault.cryptonstudio.app