Privacy Policy

Aethel — a Lucin Solutions LLC product Last updated: 2026-05-01

This policy explains how Aethel handles your data. We've written it in plain language because we want you to actually read it.

The short version: Aethel runs entirely on your own computer. We don't run servers that hold your data. We don't see your calendar, your email, your Telegram messages, or anything you ask Aethel to do. The AI engines you bring to Aethel (Claude, Codex, Gemini) see whatever you send them, under their own privacy policies, but we're not sitting in the middle.

1. Who we are

The company behind Aethel is Lucin Solutions LLC ("we", "us", "Lucin Solutions"). Aethel is the desktop app sold under the Aethel brand. If you have privacy questions, write to support@tryaethel.com or whatever address is listed at the top of tryaethel.com on the day you read this.

For users in the European Union or United Kingdom, our EU/UK Representative contact is the same address until otherwise designated.

2. What data Aethel handles, and where

Aethel processes data in three places. We tell you about each so you know exactly what's happening.

2.1 On your computer (local)

Aethel reads, writes, and stores the following on the computer where it's installed:

• Configuration — your preferences, the AI engine you've chosen, the Telegram bot token you provided, your timezone, etc. Stored at: - macOS: ~/Library/Application Support/Aethel/config.yaml - Windows: %APPDATA%\Aethel\config.yaml
• Chat history with Aethel — every message you exchange with the Aethel agent over Telegram or web chat. Stored in agent/chat_history.json alongside the config above.
• Scheduled task definitions and run logs — what tasks you've set up, when they last ran, what the AI returned. In agent/tasks/ and .task_runs/.
• Cached AI memory — facts you've asked Aethel to remember about you. In agent/memory/.
• Reminders, watchers, location updates — .reminders/, .watchers/, agent/user_locations.json.
• Media you've sent to or received from Aethel — voice notes, photos, documents. In agent/media/.
• Application logs — diagnostic information at aethel.log.
• License cache — confirmation that your Aethel license is valid. In .license and .aethel_state.

We do not transmit any of this data to Lucin Solutions servers. It exists only on your computer until you delete it, and uninstalling Aethel does not automatically delete it (you have to remove the data directory yourself).

2.2 With third-party services you authorize ("sub-processors")

Aethel's job is to drive other services on your behalf. Each integration you turn on becomes a sub-processor that sees the data you direct Aethel to send through it. You decide which to enable; Aethel never enables one silently.

The current sub-processor list:

We list this so you can read each sub-processor's privacy policy yourself. Their use of your data is governed by their own terms, not by this policy.

If we add or change sub-processors, we'll update this list and note the change date at the top of this file. For material changes (a new sub-processor that sees data it didn't see before), we'll surface a notice in the app.

2.3 By Lucin Solutions (us)

We see almost nothing. Specifically, we receive:

• Purchase records from Lemon Squeezy — your name, email, country, and order details, so we can issue licenses and answer support emails.
• License validation pings — when Aethel checks "is this license still valid?", Aethel hits Lemon Squeezy's API. The fingerprint of the installation (a hash of hardware identifiers — not the raw identifiers) and the license key go to Lemon Squeezy. Lucin Solutions does not run a license server; we rely entirely on Lemon Squeezy.
• Support emails you send us — the contents of those emails, plus any logs or screenshots you choose to attach.

We do not receive: your chat history, your prompts to AI engines, your calendar, your emails, your tasks, your reminders, your location, your files, or any content created by Aethel.

3. Cookies and tracking

The Aethel desktop app and the local web chat interface do not use any analytics, advertising, or tracking cookies. We don't operate a behavioral-analytics pipeline on you.

The marketing site at tryaethel.com may use minimal, privacy-respecting analytics (e.g., Plausible or similar) to measure visit counts. If we add this, we'll list it here.

4. Lawful basis (GDPR / UK GDPR)

We process the limited data we do receive under the following lawful bases:

• Contract performance — issuing your license, validating it, providing support — Article 6(1)(b).
• Legitimate interest — preventing license abuse via fingerprint validation — Article 6(1)(f). You can object via the rights below.

We do not process data for marketing without consent.

5. Your rights

If you're in the EU, UK, California, or another jurisdiction with privacy rights, you have the right to:

• Access — ask what data we hold about you.
• Rectify — ask us to correct inaccurate data.
• Delete / Erase — ask us to delete your data.
• Port — ask for a machine-readable copy.
• Object / Restrict — object to processing under legitimate interest.
• Withdraw consent — for anything we processed under consent.
• Complain — to a supervisory authority (e.g. your country's data protection authority, or the California Attorney General).

To exercise any of these, email support@tryaethel.com. We'll respond within 30 days. Because we hold so little data — basically just your purchase record — most of these requests are quick to fulfill.

We don't sell your personal information. If you're a California resident: we have not sold or "shared" your data in the prior 12 months.

6. International data transfers

Lucin Solutions is based in the United States. Data we receive (purchase records, support emails) is processed in the US. For users in the EU/UK, this transfer relies on Lemon Squeezy's Standard Contractual Clauses for billing, and on legitimate-interest balancing for support emails (you chose to write to us).

You decide which sub-processors Aethel uses; their cross-border practices are governed by their own policies.

7. Children

Aethel is not designed for or directed at children under 13 (or under 16 in some EU jurisdictions). We don't knowingly process data from children. If you believe a child has used Aethel, contact us and we'll delete any related records.

8. Security

We protect the small amount of data we do hold using:

• TLS for all communication with Lemon Squeezy.
• Bcrypt hashing for the local web-chat password (stored on your device).
• AES-GCM encryption for the locally-cached license state.
• HMAC integrity protection on license payloads from Lemon Squeezy.
• Limited data retention — purchase records as long as required by tax law (typically 7 years), then deleted; support emails for 2 years.

We can't promise no breach will ever happen, but we'll notify you under GDPR / state-law timelines if one does and you're affected.

9. Retention

10. Changes to this policy

If we change this policy, we'll bump the "Last updated" date at the top and, for material changes, surface a notice in the app on next launch. You'll never see a sneaky change.

11. Contact

Lucin Solutions LLC Privacy questions: support@tryaethel.com General contact: support@tryaethel.com Mailing address: listed at tryaethel.com

This policy is governed by the laws of the State of [STATE] in the United States. Disputes will be handled per the Aethel Terms of Use.