The sites you need. Without a complicated setup.

What you need. A key, subscription link or configuration file from your provider. TunLeo does not supply server access.

How to add it. Paste a link, open a file or scan a QR code. A subscription can contain several servers. A profile name helps you recognise the group.

Next steps. Select Continue, review the detected connections and select Add. Choose a key on the main screen and connect. Importing alone does not start the connection.

When it helps. Group many profiles into personal and work folders. A folder is optional when you have only one profile.

How to use it. Create a folder and move an entire profile into it. Its keys stay together. This changes the list order rather than connection settings.

Next steps. Save the name or finish the move. Reconnection is unnecessary. Only empty folders can be deleted.

When it helps. Find a working key or investigate a site that fails after connecting.

Results. A key check tests server availability. An active-connection check tests network access through that connection. Lower delay means a faster response, not a guaranteed download speed.

Next steps. On failure, read the reason, try another key or check your normal internet connection. On success, open the particular site you need.

Export. Saves profiles, keys, rules and settings in a file protected by your password. Useful before moving to another device or removing data.

Restore. Replaces current saved data with the backup contents. Export another backup first if you also need the current data.

Next steps. Keep the exported file and password separately. To restore, select the file, enter its password and review the confirmation. Check the selected key and route afterward. The connection restarts if needed.

Meaning. A rule set decides which sites and apps use the selected server and which use your normal internet connection.

Example. Send a work service through the profile and keep your printer on the local network. Rules run from top to bottom; the first matching rule applies.

Next steps. Choose a rule set and its general mode. An active connection applies the change automatically. Wait for reconnection and check your site.

When it helps. A site takes the wrong path or several rules might match it.

How to use it. Enter a domain or IP address and optionally an app. The check shows the first matching rule and its path without opening the site.

Next steps. If the path is wrong, change the rule order or condition. Then connect and open the site. This check alone does not test internet access.

Purpose. DNS converts a site name such as example.com into its network address so the device can find it.

Enabled. Uses the DNS servers saved in TunLeo. Useful when your normal provider DNS cannot find a site. These servers must be reachable from your network.

Disabled. Uses the device DNS. Useful when sites stopped resolving after a DNS change. Saved addresses remain available. Internet access is still enabled.

Next steps. The switch saves immediately. Open the DNS editor to save custom addresses. Wait for automatic reconnection and try the site again.

Enabled. Useful when losing access is preferable to an ordinary direct connection after a server failure. TunLeo enables TUN and network protection. Some apps may have no internet until recovery.

Disabled. TunLeo does not enable this extra blocking. Useful when direct access is acceptable and internet availability matters more. Your routing rules remain as configured.

Next steps. The switch saves immediately. Wait for reconnection. For Android blocking after the app stops, also enable permanent connection and blocking without it in the system settings for TunLeo. Those system options can leave the device offline after a manual stop.

Enabled. After detecting lost access, TunLeo waits for the configured delay and retries with the same key and rules. Useful when switching between Wi-Fi and mobile data.

Disabled. Reconnect manually after a failure. Useful when you want to decide when another attempt starts. Changing this setting alone does not stop the current connection.

Next steps. The switch saves immediately. Set the delay below. A manual stop cancels retries and prevents them from starting the connection again.

Enabled. Shows a message when the connection is lost or restored. Useful when the TunLeo window is hidden. Repeated errors are grouped.

Disabled. These messages are hidden. The connection and automatic retries follow their separate settings. The Android running-service notification is managed separately.

Next steps. The switch saves immediately. Allow notifications if the device asks, then use the test notification button. If nothing appears, open the system notification settings for TunLeo.

Meaning. Download is data arriving at the device; upload is data leaving it. The graph shows current speed and the total shows data already transferred.

Reading it. Zero speed is normal when nothing is loading. The timer shows connection duration. A dash means no measurement is available yet.

Next steps. Open a site or download a file and watch the graph. Speed also depends on that site and your network, so the graph alone cannot identify the best server.

Manual selection. Choose a language you understand. It is saved for future launches.

Automatic. Follows the device or browser language. An unsupported language falls back to English.

Next steps. Nothing else: labels change immediately. The connection stays active. Your profile names and key contents remain unchanged.