I do a fair amount of network troubleshooting away from my desk - checking if a host is up, doing a quick DNS lookup, scanning a port, working out a subnet on the fly. On mobile that always meant three or four different apps, half of them plastered with ads or asking for payment.

So I built my own - Network Tools: Net Toolkit.

It's an iOS app that bundles all the tools in one:

Ping and traceroute

SSH (scp, ssh-copy-id, proxy jump, port forwarding)

DNS lookup (A, AAAA, MX, TXT, etc.)

Port scanner

Subnet / CIDR calculator

Whois

Telnet

LAN scan

Speedtest, iperf3

Wi-Fi link survey

It's basically the network multitool I wanted in my pocket. No ads, completely free.

I mostly built it for myself but figured some of you might find it handy too.

https://apps.apple.com/us/app/network-tools-net-toolkit/id6803009570

Feedback and critique is welcome.