Perennial Echo Privacy Policy
Last updated: June 2026
For privacy questions about Perennial Echo, contact us at hello@perennial.you.
Summary
Perennial Echo is a desktop application designed to run on your machine. Your communication fingerprints, drafts, and API keys stay local unless you choose to send text to an AI provider you configure. We do not require an account or subscription to use Echo.
What Echo Stores Locally
On your device, Echo may store:
- Communication fingerprints you import (Markdown
.mdfiles you own) - Draft input and output for the current session and editor restore points
- Your API keys for the providers you enable (Bring Your Own Key)
- App preferences (selected fingerprint, target channel, UI settings)
This data remains on your computer unless you delete it or uninstall the app.
What Leaves Your Device
Echo contacts remote services only when necessary for the features you use:
| Purpose | What is sent | Who receives it |
|---|---|---|
| AI drafting | The text you submit for generation, plus relevant fingerprint context, when you generate a draft | The API provider you configured (OpenAI, Anthropic, xAI, Google, Kimi, Qwen, or another supported provider) |
| App updates | Version check metadata (current version, platform) | Perennial release infrastructure (see perennial.you /echo download manifest) |
| Built-in MCP | Generation requests initiated from MCP clients you connect | Same as AI drafting: your chosen provider with your keys |
We do not route your draft content through Perennial servers for generation. You choose which provider receives your text.
What We Do Not Collect in Echo
Perennial Echo does not:
- Require a Perennial account or login
- Upload your fingerprints to Perennial by default
- Store your API keys on Perennial servers
- Use your drafts to train Perennial or third-party models (provider policies apply to API traffic you send)
- Sell your personal data
Optional future features (such as cloud-hosted team fingerprints) will be described separately before they ship and will require your explicit choice to use them.
perennial.you (Marketing Site)
Downloading Echo from perennial.you may use standard web analytics (for example, Vercel Analytics) on the marketing pages only: page views and coarse device or region data. That analytics does not include your Echo drafts or fingerprints.
Purchasing a communication fingerprint on perennial.you is governed by the main Privacy Policy for orders and questionnaires.
Updates and Security
Echo checks for application updates automatically so you receive security fixes and improvements. Update packages are distributed via the release channel linked from perennial.you.
Keep your operating system and Echo installation current. Protect API keys as you would any credential on your machine.
Changes
We may update this policy as Echo evolves. Material changes will be reflected on this page with an updated “Last updated” date.