1. Who we are
Kryon is an open-source Android proxy client developed by RKM Labs("we", "us", "our"). This Privacy Policy explains how the Kryon app and the kryon.app website handle your information.
The full source code is available on GitHub. You are encouraged to read it.
2. What Kryon does — and doesn't do
Kryon is a client-side proxy tunnel. It connects to your ownSOCKS5 or HTTP proxy server (one you provide, configure, or rent yourself) and routes your device's traffic through it.
- We do not operate proxy servers. When you connect, your traffic is routed to whichever server you configured — never through us.
- We do not see your browsing. No URL, no hostname, no packet, no IP address ever reaches us.
- There is no Kryon backend. The app does not phone home, ping a license server, or report installs.
3. Data stored on your device
The app stores the following data only on your device, in private app storage that other apps cannot read:
- Proxy profiles you create (name, host, port, optional username and password).
- App preferences (auto-connect on boot, kill switch toggle, last selected proxy).
- Session traffic counters (how many bytes have been routed in the current session, used for the speed display). These reset when you stop the connection and are never transmitted.
Uninstalling the app deletes all of this data. There is no cloud copy because there is no cloud.
4. Permissions we request, and why
- VPN service— required to capture your device's outbound traffic and tunnel it through your chosen proxy. The connection is established directly between your phone and the proxy you configure. We are not in the path.
- Foreground service notification — Android requires it for any always-on tunnel. Used only to show connection status.
- Boot completed— used only if you enable "Auto-connect on boot." Off by default if you turn the toggle off.
- Battery optimization exemption — optional. Lets the tunnel survive aggressive Doze mode. You grant or deny it through Android system settings.
5. Third parties
Kryon does not embed third-party analytics, advertising, crash reporting, A/B testing, or attribution SDKs. There are no trackers in the binary. You can verify this:
- Inspect the source on GitHub, or
- Use a network analyzer (e.g. PCAPdroid) on your device to confirm the app makes no outbound connections except to the proxy you configured.
If you choose to use the "Rate on Google Play", "Send feedback", or "Privacy policy" entries in the in-app settings, those open external apps (Google Play, your email client, your browser) which have their own privacy policies.
6. The proxy you connect to
When you connect Kryon to a proxy server, that server's operator can see the same things any proxy can see — at minimum, destination IPs and the size and timing of your traffic; for unencrypted (HTTP) connections, the full content. We are not that operator. Use a proxy you trust.
7. Children
Kryon is not directed to children under 13. We do not knowingly process information from children, primarily because we do not process information from anyone.
8. International users
Because Kryon does not collect, transmit, or store personal data on our servers, GDPR, CCPA, and similar regulations apply minimally to us — there is no data subject record to access, rectify, or delete. The only personal data that exists is on your own device, under your full control.
9. Changes to this policy
If we ever change how Kryon handles data (we don't plan to), we will update this page and bump the "last updated" date above. Material changes will also be announced in the GitHub release notes.
10. Contact
Questions, concerns, or audit requests: email privacy@rkmlabs.com. You can also open an issue on GitHub.
RKM Labs · Kryon · Open source under MIT.