Privacy Policy

Last updated: March 2026

Klartion is a self-hosted application. Your bank transactions, Notion data, and credentials never leave your machine — they are never sent to or stored on our servers. This policy explains the limited data we do handle.

Who we are

Klartion is an independent software product developed and maintained by David Alves, Portugal. You can reach us at support@david-alves.com.

What data we collect

We collect only the minimum necessary to operate the licence system:

Your email address — collected by Lemon Squeezy when you purchase a licence, and shared with us for support purposes.
Licence activation records — when you activate your licence key, Lemon Squeezy records that an activation occurred on a machine. We see aggregated activation counts, not device identifiers.

      We do not collect, store, or have access to your bank account data, transaction history, Notion content, Enable Banking credentials, SMTP passwords, or any financial information. All of this stays on your machine.
    

What we do not collect

Bank transactions or account balances
Notion database content or API keys
Enable Banking OAuth tokens or credentials
SMTP passwords or email content
Usage analytics or telemetry
IP addresses or device identifiers

Third-party services

Lemon Squeezy — processes payments and manages licence keys. When you purchase Klartion, Lemon Squeezy collects your name, email, and payment information. Their privacy policy is available at lemonsqueezy.com/privacy.

Enable Banking — provides open banking API access to your bank on your behalf. Their privacy policy governs how they handle your banking authorisation. Klartion stores the resulting access tokens locally on your machine only.

Notion — Klartion writes transaction data to a Notion database you own. Notion's privacy policy governs how they handle that data.

How we use your data

Your email address is used solely to:

Deliver your licence key after purchase
Respond to support requests you initiate
Send important notices about your licence (e.g. expiry)

We do not sell, rent, or share your email address with third parties for marketing purposes.

Data retention

We retain your email address for as long as your licence is active or until you request deletion. You can request deletion at any time by emailing support@david-alves.com. Lemon Squeezy's retention policies apply to payment records.

Your rights (GDPR)

If you are located in the European Union, you have the right to access, correct, or delete the personal data we hold about you. To exercise any of these rights, email support@david-alves.com. We will respond within 30 days.

Cookies

Klartion's web interface uses a single session cookie to maintain your login state. This cookie is stored locally on your machine and is not used for tracking or analytics.

Changes to this policy

We may update this policy from time to time. If we make material changes, we will update the date at the top of this page. Your continued use of Klartion after changes constitutes acceptance of the updated policy.

Contact

For any privacy-related questions or requests, email support@david-alves.com. We aim to respond within 2 business days.