🛡️ Privacy Policy for JournalZ
Effective Date: October 11, 2026
Last Updated: October 11, 2026
Application: JournalZ (com.vinodkumar.journalz)
Developer: Vinod Kumar
Contact Email: developervinodvk2025@gmail.com
1. Introduction & Privacy Pledge
Welcome to JournalZ. Your privacy is our highest priority. JournalZ is built with a strict 100% Privacy-First, On-Device Architecture.
We believe that your personal thoughts, voice recordings, quiet reflections, and life memoirs belong solely to you. JournalZ does not collect, upload, sell, or transmit your journal entries or audio recordings to any external cloud servers.
2. Information Collection and Storage
A. Journal Entries & Personal Reflections
•
All journal text, entry titles, dates, signatures, and tags created in JournalZ are stored locally on your device in an encrypted SQLite Room Database.
•
We do not operate cloud database servers, and we have zero access to your private written thoughts or memoirs.
B. Voice Recordings & Audio Processing
•
When you use the Microphone feature for voice dictation, your voice is transcribed 100% locally on your device using local Whisper AI technology.
•
Audio files recorded for transcription are stored temporarily in your app’s local private directory and are never uploaded to the internet or any third-party server.
C. On-Device AI Summaries & Companion Chat
•
AI reflections, mood ratings, and companion chat messages are generated 100% locally on your device using Google's Gemma AI model.
•
Your journal text is never sent to external AI servers, LLM APIs, or cloud machine learning services.
3. Third-Party Services & Ad Mediation
To support free access and process in-app purchases, JournalZ integrates limited, industry-standard third-party SDKs:
A. Google Play Billing Library
•
JournalZ uses the official Google Play Billing SDK to process Pro subscriptions and lifetime purchases.
•
All financial transactions, credit card processing, and billing data are handled securely by Google Play. We do not store or process your financial information.
B. Appodeal Ad Mediation
•
For users on the free tier, JournalZ displays ad mediation via Appodeal SDK.
•
Appodeal and its ad network partners (such as AdMob, Meta Audience Network, and Unity Ads) may collect non-personal device diagnostics, advertising IDs (GAID), IP addresses, and device model information solely for ad serving, frequency capping, and fraud prevention.
•
You can review Appodeal's privacy policy at: https://appodeal.com/privacy-policy/
4. Data Security & Retention
•
Local Control: Because all journal data is stored locally on your device, you have complete control over data retention.
•
Data Export & Backup: You can export full structured JSON backups or CSV spreadsheets anytime in Settings.
•
Data Erasure: Deleting an entry in JournalZ or uninstalling the app permanently erases all local data from your device.
5. Children's Privacy
JournalZ does not knowingly collect or solicit personal information from children under the age of 13. Since no personal data is collected or transmitted by our app, JournalZ complies with the Children's Online Privacy Protection Act (COPPA).
6. Changes to This Privacy Policy
We may update our Privacy Policy from time to time. Any changes will be posted within the app settings and updated on this page with a revised "Last Updated" date.
7. Contact Us
If you have any questions, suggestions, or concerns regarding this Privacy Policy or your data privacy in JournalZ, please contact us at:
📧 Developer Email: developervinodvk2025@gmail.com
📱 App Name: JournalZ (com.vinodkumar.journalz)