Need help? Found a bug? Have a feature request? Read on.
The best way to get help is to send an email. Please mention whether you use the iOS or the Android version. We'll do our best to respond quickly.
simpleiptools@przychocki.com
Many hosts and firewalls drop ICMP echo requests. If ICMP ping returns no response, try switching to TCP mode with port 443 — most hosts will accept a TCP connection on the HTTPS port. TCP "ping" measures the time to establish a TCP handshake.
Phones and tablets put their Wi-Fi radio into power-saving mode between packets, and mobile Wi-Fi chips add a few milliseconds of latency of their own. A few milliseconds to your local router is normal on a mobile device, even when a computer on the same network shows less than 1 ms. On Android, the app asks the system for low-latency Wi-Fi while Ping and Traceroute are running to keep this to a minimum.
UDP is a connectionless protocol — when a UDP port doesn't reply, there's no way to tell whether it's open (but silent) or filtered (blocked). This is a fundamental property of UDP, not a bug. TCP scans give definitive open/closed results.
iOS requires this permission for any app that interacts with devices on your local network (such as ping or port scanning). The app does not scan anything in the background — only when you press a button. You can manage this permission at any time in Settings → Privacy & Security → Local Network.
Traceroute reads the ICMP "time exceeded" replies sent by each router, using a system API introduced in Android 12. On Android 10 and 11 the tool is therefore not available; all other tools work normally.
Your current network does not provide IPv6 access to the Internet (many home networks only use IPv4, or only local IPv6 addresses). Try IPv4, or a network with IPv6 such as most mobile 4G/5G connections.
No. The app never collects your personal data or sends it to third parties. See the privacy policy for full details.
On your device only (and in your own device backup if enabled). Up to 20 entries per tool. Open the history sheet of a tool to delete an entry — swipe left on iOS, tap ✕ on Android — or use "Clear All" to wipe the history of that tool.
Suggestions are welcome! Just send an email describing what you'd like to see.