The questions support hears most often. Tap one to open the answer.
What can this app do?
- Allow or block each app separately on Wi-Fi, mobile data and roaming.
- Silence apps that talk in the background, which cuts your data usage.
- Block whole lists of tracking, malware, adult or gambling domains at once.
- Show you in the log which app reached which destination, and when.
- Encrypt DNS (DoH / DoT) so your network and your ISP cannot see which sites you visit.
Does my phone need to be rooted?
No. The app uses Android's own VPN mechanism inside the device, which is what makes per-app control possible without root.
Why does it need VPN permission? Is my traffic sent somewhere?
On Android, the VPN permission is the only way to judge traffic per app. A key icon appears in the status bar while it is on, but this is nothing like an ordinary VPN service.
- It never connects to an external server. The tunnel is closed inside your device; no traffic passes through our servers or anyone else's.
- Your IP address and destinations do not change. No country switching, no anonymisation.
- Encrypted traffic is never decrypted, and no traffic content is stored.
- The only record is the connection log — which app, when, where. It stays on the device and expires after 30 days.
Can I use it alongside another VPN app?
No. Android allows only one active VPN at a time. Connecting another VPN stops this firewall, and the other way round. If the key icon is gone, the firewall has stopped; open the app and it resumes.
The filter lists do not block anything.
Check Android's Private DNS first (Settings → Network & internet → Private DNS). If it names a specific provider hostname, your lookups are encrypted end to end, so the app cannot read the domain and the filter lists match nothing at all. Your per-app allow and block rules are unaffected.
"Automatic" is usually fine as it is. Switch to "Off" only if hostnames stop appearing in the connection log. The app also tells you about this on its home screen.
Check your browser's own secure-DNS setting too (Chrome's "Use secure DNS", for example) — it gets in the way for the same reason.
An app I blocked is still using the network.
Check the following:
- Whether you blocked the icon for the network you are actually on — allowed on Wi-Fi but blocked on mobile data, for instance.
- Whether an "always allow" custom rule or destination rule covers it. An allow rule beats every list.
- The connection log row for that app: it records why the connection was allowed.
Traffic that cannot be attributed to any app is allowed on purpose. Silently dropping what it cannot identify would break the device in ways you could not diagnose.
I blocked an app and now it does not work.
That is the intended behaviour. A blocked app is refused at once, so it shows its own offline state. If the app needs the network, tap its network icon in the app list to allow it again.
If you want to stop only one destination rather than the whole app, long-press a row in the connection log and make a destination rule for that app alone.
The firewall keeps switching itself off.
- Another VPN app: when another VPN connects, Android stops ours. Check whether another VPN's tile sits in your notification panel.
- Battery optimisation: some devices kill the app to save power. In App info → Battery, set optimisation to "Unrestricted".
The app tries to resume by itself if Android stops it, and turns itself back on after a reboot.
Will it really cut my data usage?
That depends on what you block. Blocking apps that talk in the background definitely removes that traffic. You can see bytes sent and received per app for today, yesterday, this week, this month or all time, so you can look before you decide, and set daily and monthly alerts.
Where is the connection log stored? Is it uploaded?
It is stored on your device only and is never sent to our servers. Rows older than 30 days are deleted automatically, and you can erase all of it from inside the app at any time. Exporting it as CSV is your own action, to a location you choose. See the Privacy Policy for details.
Where do the filter lists come from?
They are public third-party lists, downloaded straight from their publishers (AdGuard, abuse.ch URLhaus, Hagezi, StevenBlack and ngosang). Only the lists you enable are downloaded, and they can update once a day on Wi-Fi — or on one tap.
If a list goes too far, add an "always allow" custom rule. An allow rule beats every list.
Is there a monthly fee?
No. It is a one-time purchase with no charges beyond it, and the app shows no ads.
What is the difference between the free and the paid version?
The free version is a trial so you can see how it behaves before buying; it runs for a limited period. The features are the same. To keep using it without the time limit, buy the paid version or unlock the free one through its in-app purchase. Either way it is a one-time purchase.
Can I move my settings to a new phone?
Yes. Settings → Back up settings writes your per-app rules, filter selection and custom rules to one file, which you restore on the new device.
Where do I report a bug or ask for a feature?
Through Settings → Contact us in the app, or by e-mail to . Telling us the device model, the Android version, the app concerned and what you were doing makes it much quicker to act on.