Privacy

Short version

Prompt Enhancer is a desktop app for macOS, Windows and Linux. Enhancements run through our zero-log proxy (or, on Pro BYOK, directly to Anthropic) — either way we never see or store your prompt content. To run the free trial we store your email and a hashed device identifier. That's the only personal data we hold, and we don't track you across the web.

What stays on your device

• Your selected text and the enhanced output — processed in memory only, never written to disk and never stored on our servers.
• Your Anthropic API key (Pro BYOK only) — macOS Keychain, Windows Credential Manager, or libsecret/GNOME Keyring on Linux.
• Your device identifier and trial session token — stored in your OS Keychain.
• Your preset choices and settings — local UserDefaults / Tauri store.

What is sent off your device

Starting a trial: when you enter your email to unlock the 7-day trial, we send your email and a hashed device identifier to our Cloudflare Worker. The email is stored to run and resume your trial; we never use it for marketing without consent.

Managed mode (free, trial, and Pro): your prompt goes to our Cloudflare Worker proxy at api.promptenhancer.online, which forwards it to Anthropic. We log only: timestamp, prompt length (tokens), and your trial or license id. We do not log the prompt content. Logs retained 30 days for abuse detection.

Pro BYOK mode: with a Pro license you can use your own Anthropic key — your prompt then goes directly to api.anthropic.com over TLS and we're not in the loop. Anthropic's privacy policy applies.

Website analytics

This marketing site uses Vercel Analytics — privacy-friendly, no cookies, no cross-site tracking, no personal identifiers. Aggregate page views only.

Updates

The app checks github.com/promptenhancer/releases for new versions — Sparkle on macOS, Tauri updater on Windows/Linux. Standard HTTPS request, no telemetry payload attached.

Questions

Email hello@promptenhancer.online.