Privacy Policy

This policy explains what D—Type (“we,” “us”) does and doesn’t collect when you use the D—Type macOS app and the detype.app website. We wrote it in plain language on purpose.

1. What the app collects

Almost nothing, by design. D—Type has no user accounts and we never store your writing. How your text reaches the AI depends on which mode you use:

• Your API key (bring-your-own-key mode) is stored in the macOS Keychain on your device. It’s used only to authenticate your requests to your chosen provider. We never receive it or transmit it to ourselves.
• The text you transform — bring-your-own-key mode. If you’ve added your own key, what you select and run through ⌥Space is sent directly from your Mac to the AI provider you selected — Anthropic (Claude) or OpenAI — over an encrypted connection. It does not pass through any server we control. We never see it, log it, or store it.
• The text you transform — included plan. If you use the included plan (no key needed), your text is sent over an encrypted connection to our relay at detype.app, which calls the AI with our key and meters how much you’ve used. The relay does not log the content of your rewrites and does not store your text — it passes it to the provider and returns the result. We retain only the usage counts needed for metering, not your text.
• Your voice profile (writing samples and the style preferences D—Type derives from them) is stored locally on your device only. You can delete it at any time.
• Your preferences (hotkey, model choice, toggles) are stored locally in standard macOS app settings.

2. Your AI provider handles your text

In both modes the AI provider that actually processes your text — Anthropic (Claude) or OpenAI — does so under their terms and privacy policy. Please review them:

• Anthropic (Claude) Privacy Policy — note that API usage is generally not used to train their models.
• OpenAI Privacy Policy — API data is generally not used for training by default.

In bring-your-own-key mode you’re billed directly by that provider for your usage and we’re not party to that transaction. On the included plan we cover the provider call with our key and bill you for your D—Type plan; your text reaches the provider via our relay, which doesn’t store or log it.

3. Crash & error reporting (optional)

To fix bugs, the app can send anonymous crash and error reports via Sentry. These contain technical diagnostics (a stack trace, app version, macOS version) and are configured to exclude personal data — they never include the text you’re editing or your API key. This is off unless enabled, and can be disabled in settings.

4. The website

detype.app is a static marketing site hosted on Vercel. We may use privacy-respecting, cookieless analytics to count visits and understand which pages are useful. We do not run advertising trackers that build a profile of you across the web. If we add a checkout, payments are handled by a third-party payment processor (e.g. Lemon Squeezy or Paddle) under their privacy terms; we receive only the order details needed to deliver your license.

5. What we never do

• We don’t sell or rent your data. There’s essentially nothing to sell.
• We don’t store your writing or build a profile of you.
• We don’t require an account to use the app.

6. Your rights

Because your content and profile live on your device, you’re in control: delete the app’s data or the app itself to remove everything locally. For any website-side data (e.g. an email you gave us, or a purchase record), email us and we’ll access, correct, or delete it. Depending on where you live, you may have rights under the GDPR or CCPA; we honor them.

7. Children

D—Type isn’t directed at children under 13 (or the equivalent age in your region) and we don’t knowingly collect their data.

8. Changes

If we change this policy, we’ll update the date above and, for material changes, note it on the site.

9. Contact

Questions? Email hi@detype.app.

This document is provided as a clear, good-faith description of our practices and is not legal advice. Have it reviewed by counsel before relying on it for compliance in your jurisdiction.