Privacy policy
In short: Tunnel Checker has no account, no ads, no analytics and no servers of its own. Your settings and results stay on your phone. To run its checks, your phone contacts the services listed below, which see your IP address, as any website you visit would.
Who we are
Tunnel Checker is made by Cybershmuck, an independent developer and sole trader in the United Kingdom, who is the data controller for this app. Contact: contact@mailmyemail.com.
What stays on your phone
- Your settings, including your ipapi.is API key, your self-hosted and router VPN addresses, and widget layout.
- The latest check results, and the list of networks (provider name and AS number) the app has seen you use without a VPN, which the leak checks compare against.
- Device location, if you allow it. Android only reveals your Wi-Fi network's name, BSSID and channel width to apps with location permission. The app also uses your last known position to draw a dot on its map. Your location is never sent off your phone.
We never receive any of this. Uninstalling the app, or clearing its storage, deletes it.
Services your phone contacts
Each check is a direct connection from your phone to the service named. These services receive your IP address, and process it under their own privacy policies.
| Service | Why | What it receives |
|---|---|---|
| ipify (api.ipify.org) | Find your public IP address | Your IP address |
| ipapi.is | Location, owner and VPN/proxy/Tor flags for your IP | Your IP address and your own ipapi.is API key |
| bash.ws | DNS leak test | Your IP address, and the IP addresses of the DNS servers that look up randomly generated test names |
| Google and Cloudflare STUN servers | WebRTC (UDP) leak test | Your IP address |
| Esri ArcGIS | Map tiles around your IP's approximate location | Your IP address and which map tiles are requested |
| Google Play | Buying Tunnel Checker Pro | Handled entirely by Google Play. We receive no card or payment details. |
Checks run when you open the app, every 15 minutes in the background, and when your network changes.
What we don't do
- No advertising, advertising IDs or tracking.
- No analytics or crash-reporting services.
- No selling or sharing of personal data.
- No collection of browsing history, app usage or the content of your traffic.
Notifications
If you turn on alerts (Pro), the app shows notifications on your phone when your VPN stops protecting you or a leak is found. They are generated on the phone.
Your rights
Under UK GDPR you can ask what personal data we hold about you and ask for it to be deleted. We hold none: everything the app stores is on your device, and you can delete it by clearing the app's storage or uninstalling it. For data held by the services above, contact them directly. You can complain to the UK Information Commissioner's Office (ico.org.uk).
Children
Tunnel Checker is a network utility for adults and isn't directed at children.
Changes
If this policy changes, the new version will be posted here with a new date.