Lattice Privacy Policy

Last updated: 2026 January 13

Overview

Your privacy is fundamental to the design of this app. This app is an end-to-end encrypted messaging service designed to minimize data collection and ensure that message contents remain private and inaccessible to anyone other than the intended recipients — including us.

Information We Collect

Information You Provide

We do not require or collect:

- Email addresses

- Phone numbers

- Real names

- Government-issued identifiers

- Payment information

User ID

To use the service, users select a user ID.

- The user ID is chosen by the user

- It is stored in plaintext on our servers

- It is not required to correspond to a real-world identity

- We do not verify, enrich, or link user IDs to real individuals

- The user ID is used solely for message routing and basic account functionality

Users are responsible for choosing an ID that does not contain personal information if they wish to remain anonymous.

Messages and Content

- All messages are end-to-end encrypted on the user’s device before transmission.

- Encrypted message data (ciphertext) may be stored on our servers to enable message delivery.

- We cannot read, access, or decrypt message contents.

- Encryption keys are generated and stored on user devices and are never accessible to us.

Information We Do Not Collect

We do not collect:

- Message contents in readable form

- Phone contacts or address books

- Location data

- Advertising identifiers

- Cross-app or cross-site tracking data

- Analytics data used for profiling or advertising

How We Use Information

We use the limited information we collect only to:

- Operate and maintain the messaging service

- Deliver encrypted messages

- Prevent abuse and ensure service reliability

We do not use data for:

- Advertising

- Behavioral tracking

- Profiling

- Selling or sharing with third parties

Data Sharing

We do not sell, rent, or share user data with third parties.

We may disclose limited information if required to comply with applicable law. Because messages are end-to-end encrypted, we are unable to provide message contents even if legally requested.

Data Security

We use industry-standard technical and organizational measures to protect stored data.

- Encrypted message data remains encrypted at rest and in transit

- Plaintext user IDs are protected using appropriate access controls

Data Retention

- Encrypted messages are retained only as long as necessary for message delivery and service functionality

- User IDs are retained for the lifetime of the account

- Upon account deletion, associated user IDs and stored encrypted messages are deleted from our systems

Your Choices and Responsibilities

- You may delete your account at any time

- You may choose a user ID that does not contain personal information

- You are responsible for any personal data you voluntarily include in your user ID or messages

Children’s Privacy

This app is not intended for children under the age of 13, and we do not knowingly collect personal data from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Updates will be reflected with a revised effective date.

Contact Us

If you have questions about this Privacy Policy or our privacy practices, contact us at:

https://svenlinus.github.io/greekrow-support/