Privacy Policy
Last updated: July 22, 2026
Thelxis is a macOS app that rewrites and translates the text you select. This policy explains what we collect, what we deliberately do not, and who else is involved.
The text you transform
When you use Thelxis Cloud, your selected text passes through our service only to reach the language model that produces the result. It is streamed back to your Mac and then discarded. No Thelxis log or database ever contains that content. We record only anonymous counts — the number of tokens and requests — to enforce quotas and reconcile costs.
When you use a local provider (the codex CLI
or your own OpenAI-compatible endpoint), the text goes directly from your
Mac to that provider and never touches Thelxis servers at all.
In every case, the language-model provider that generates the result receives the text to be transformed and processes it under its own terms and privacy policy.
What we collect
- Email address — if you sign in to Thelxis Cloud, we send a one-time sign-in code to your email and store the address as your account identity. Sign-in codes themselves are stored hashed, never in plain text, and expire quickly.
- Subscription & device data — if you subscribe, we store your subscription status (product, state, expiry) derived from your Apple App Store transaction or, for the direct download, from our payment processor. We also store a per-install identifier, device name, OS version, and app version so you can manage your registered devices.
- Usage counts — token counts and request counts per billing period and device, used for fair-use limits and cost reconciliation. These are numbers only, never content.
- Network address — your IP address is used transiently to rate-limit and prevent abuse.
We do not collect payment card details. Purchases are handled entirely by Apple (Mac App Store) or our payment processor.
Who else is involved
- Language-model providers — receive the text to be transformed in order to produce your result.
- Apple — processes App Store purchases and subscriptions for the Mac App Store build.
- Dodo Payments — processes subscriptions for the direct-download build.
- Cloudflare — provides our hosting and infrastructure (compute, database, storage) and delivers sign-in emails.
Retention & deletion
Account and subscription records are kept while your account is active and for as long as needed to meet legal, tax, and accounting obligations. You may request deletion of your account by contacting us; a deleted account cannot be used to sign in again.
Children
Thelxis is not directed to children under 13, and we do not knowingly collect their data.
Changes
We may update this policy; material changes will be reflected by the date above. Continued use after an update means you accept the revised policy.
Contact
Questions about privacy? Email support@thelxis.app.