Privacy Policy

Version 1.0 — July 2026 · The honest version: the app sends no telemetry, and the license server stores hashes, not your hardware.

1. The app itself: zero telemetry

Daito's Opti sends no analytics, no usage data, no crash reports — nothing. The app contacts the internet in exactly three user-visible situations: activating/validating/deactivating your license, and when you click the manual update-check button. That's the complete list.

2. What the license system stores

When you activate, our license server stores:

• A SHA-256 hash of your license key — never the key itself in readable form.
• Hashed hardware component identifiers (motherboard, CPU, machine GUID — hashed on your machine; raw serial numbers never leave your PC).
• A short machine hash — the same one shown in the app, so support can identify your slot when you mail us.
• A machine name (your PC's hostname, e.g. "DESKTOP-4F2K") from app version 2.4.2 onward, so you can recognize your own machines when managing slots via support.
• Activation timestamps and audit entries (activations/deactivations with timestamp and the short machine hash).

This exists for one purpose: enforcing the 2-PC license limit and helping you in support tickets. It is not used for profiling, not enriched, not sold, not shared beyond the processors below.

3. Your e-mail address

Used for exactly two things: delivering your license key after purchase (the order reference and your e-mail are stored with the key record so we can find your purchase in support cases) and answering support. No newsletter, no marketing, unless you explicitly ask for one someday.

4. Processors we use

• Lemon Squeezy — payment processing as merchant of record (they are the seller of record and have their own privacy policy covering your payment data).
• Vercel — hosting of this site and the license API.
• Upstash — database (EU region) holding the license records described above.
• Resend — transactional e-mail delivery (key delivery, login links).

5. Retention

License records live as long as your license is valid, plus a reasonable period for support and fraud prevention. Audit entries are capped (oldest entries are discarded automatically). Payment records are retained by Lemon Squeezy per their legal obligations.

6. Your rights (GDPR)

You can request access to, correction of, or erasure of your data: deactivate your machines in the app, then mail us and we delete your key record and its audit trail. Erasing the record also ends the license — we cannot verify a license we no longer store. You can also complain to the Dutch DPA (Autoriteit Persoonsgegevens) if you believe we handle your data unlawfully.

7. Contact

Data requests and questions: daitoak@outlook.com.