ZenSMS-public

ZenSMS Privacy Policy

Last updated: 10 May 2026

About ZenSMS

ZenSMS is a privacy-focused SMS/MMS replacement app for Android, developed and published by Essential Labs 8. ZenSMS is not affiliated with, associated with, or related to any other product or service that may share a similar name, including any SMS marketing, bulk messaging, or SMS blasting platforms. Our app is designed solely for personal, on-device messaging with a focus on privacy and spam protection.

Our Commitment to Privacy

ZenSMS is designed with privacy as a core principle. We believe your messages are yours alone. This app operates entirely on your device with no external servers or data collection.

Data Storage

All messages are stored locally on your device only
No messages are ever sent to external servers
No cloud backup or sync (by design)
Uninstalling the app removes all data

Data We DO NOT Collect

Message content
Contact information
Phone numbers in readable form (diagnostic bundles use one-way hashes only — see MMS Diagnostic Tools)
Location data
Usage analytics
Personal identifiers
Any form of telemetry

Permissions We Request

SMS/MMS: Required to send and receive messages (core functionality)
Contacts: To display contact names and photos (optional)
Phone State: To detect SIM cards for dual-SIM support
Notifications: To alert you of new messages
Storage: To save MMS attachments (photos, files)

Third-Party Services

Google Play Billing: Used only for premium purchases. Google may collect purchase data per their privacy policy.
No advertising SDKs
No analytics SDKs
No crash reporting SDKs

MMS Diagnostic Tools

ZenSMS includes optional diagnostic tools (Settings → Diagnostics) to help troubleshoot message delivery issues. These are entirely opt-in:

Nothing is transmitted automatically — all data stays on your device
Diagnostic bundles are stored temporarily in your device’s cache and auto-deleted after 24 hours
Bundles may include: device model, Android version, carrier name, app settings, network state, permission states, and aggregate message counts (no message content)
Phone numbers are one-way hashed (SHA-256 with a random per-device salt) — the original numbers cannot be recovered from the hash
Message bodies, contact names, and attachment content are never included
Bundles are only shared if you explicitly tap the Share button
If you share a bundle with us for support, we use it only to diagnose your issue and do not retain it

Premium Features

Premium purchases are processed through Google Play. We do not store or have access to your payment information. Purchase status is verified through Google Play’s secure systems.

Data Security

Your messages are protected by your device’s built-in security. We recommend using device encryption and a secure lock screen for maximum protection.

Children’s Privacy

ZenSMS does not knowingly collect any information from children. The app is a tool for SMS communication and does not target any specific age group.

Changes to This Policy

We may update this privacy policy occasionally. Any changes will be reflected in the app with an updated date. Continued use of the app constitutes acceptance of any changes.

Contact

For privacy concerns or questions, please email zensmsapp@gmail.com