Nmap for iPhone (2026): What Actually Runs on iOS
Short version. There is no Nmap for iPhone, and there cannot be a full one. iOS sandboxes raw sockets, which removes SYN scanning, OS fingerprinting and the NSE script engine outright. What you can do on iPhone is a TCP connect scan of your own network, which covers the common reason people reach for Nmap at home. PingKit does that free, alongside device discovery and 17 other tools.
If you searched for "Nmap for iPhone" you were probably trying to do one of two things: find out which ports are open on a device on your own network, or work out what is actually connected to your WiFi. Neither needs Nmap specifically, which is fortunate, because Nmap does not exist on iOS and a complete port of it is not possible.
Full disclosure: I build PingKit, so weigh the recommendation accordingly. The comparison below is written to stay useful even if you pick something else, and the limits section is not padding. Competitor features and pricing change, so check the current listing before you decide.
Why There Is No Nmap on iOS
Nmap's most useful features depend on raw sockets: the ability to craft and send packets that the operating system did not build for you. That is how a SYN (half-open) scan works, how OS fingerprinting reads TCP/IP stack quirks, and how Nmap times traceroute probes so precisely.
iOS does not grant raw socket access to App Store apps. It is not a permission you can request or an entitlement you can apply for. This is the same restriction that stops Wireshark-style packet capture from working on iPhone, and it applies equally to every app in the Store, including mine.
You will find iSH in the App Store, an x86 Alpine Linux emulator that can technically apk add nmap. It runs, but inside the same sandbox: no raw sockets, so no -sS, no -O, no UDP scanning. You are left with -sT TCP connect scans, emulated, at a fraction of native speed. It is a fun demonstration rather than a tool.
What Is Actually Possible on iPhone
| Nmap capability | Possible on iOS? | Why |
|---|---|---|
TCP connect scan (-sT) | Yes | Uses ordinary sockets |
| Host discovery / ping sweep | Yes | ICMP and TCP probes are allowed |
| Service banner reading | Partly | Only what a normal connection reveals |
SYN / stealth scan (-sS) | No | Needs raw sockets |
UDP scan (-sU) | No | Needs raw sockets |
OS fingerprinting (-O) | No | Needs raw sockets |
| NSE scripts | No | No scripting engine, no raw sockets |
The honest summary: you can answer "is this port open on my NAS" and "what is on my network". You cannot do reconnaissance work, and you should not expect to.
Doing the Useful Part with PingKit
PingKit's Port Scanner runs a TCP connect scan against a host on your own network and reports which of the common service ports answer. Its LAN Scanner sweeps your local segment and lists what responds, naming devices from vendor OUI data, Bonjour and SSDP advertisements, hostnames and open-port patterns.
Both are free, with no ads and no account. The other 17 tools (ping, traceroute, MTR, DNS lookup, WHOIS, SSL inspection, HTTP analysis, Wake-on-LAN, Bonjour browsing and more) are free too.
Scope note. PingKit scans networks you are connected to and hosts you own. It is not built for scanning the public internet, and it will not help you port-scan someone else's infrastructure. That is a deliberate design decision, not an oversight.
Where PingKit Falls Short of Nmap
Worth stating plainly, because a comparison that only lists wins is not useful:
- TCP only. PingKit does not probe UDP at all, so services that only speak UDP will not appear. Full UDP scanning is impossible on iOS regardless, since it needs raw sockets to read ICMP port-unreachable replies.
- No OS detection. Device identification uses vendor and protocol signatures, not TCP/IP stack fingerprinting, so it names a device by what it advertises rather than by how its network stack behaves.
- No scripting. Nothing equivalent to NSE, so no vulnerability probes or service-specific interrogation.
- Speed, not range. The scanner offers a top-ports preset, ports 1 to 1024, a web-ports preset and a custom range anywhere up to 65535. The full range is available but a TCP connect scan of all 65535 ports from a phone is slow, where Nmap's SYN scan would finish in a fraction of the time.
If you need any of those, you need a real computer. Nmap on a Mac, a Linux box, or a Raspberry Pi on the same network is the right tool, and an iPhone is the wrong shape of device for the job.
Which Should You Use?
Checking your own network from your phone: PingKit, or another iOS scanner. The job is well within what iOS allows.
Security assessment, CTF work, or anything needing SYN scans: Nmap on a laptop. Do not fight the platform.
Curiosity about what Nmap feels like: iSH, with expectations set low.
Frequently Asked Questions
Is there an official Nmap app for iPhone?
No. There is no official Nmap app for iOS and no version in the App Store. Nmap's core scanning modes require raw socket access, which iOS does not grant to App Store apps.
Can I run Nmap on iPhone using iSH?
Technically yes. iSH is an Alpine Linux emulator on the App Store and Nmap can be installed inside it. However it runs in the same iOS sandbox, so raw sockets are unavailable: no SYN scan, no OS detection and no UDP scanning. Only slow emulated TCP connect scans work.
What is the closest thing to Nmap on iPhone?
A TCP connect port scanner combined with a LAN device scanner. PingKit provides both free, along with ping, traceroute and MTR. It covers host discovery and open-port checking on your own network, but not SYN scanning, OS fingerprinting or NSE scripts.
Can iPhone apps scan UDP ports?
Not in the full sense. Distinguishing a closed UDP port from a filtered one relies on seeing ICMP port-unreachable replies, and that needs raw sockets, which iOS does not grant to App Store apps. An app can still send a UDP datagram and detect a service that answers, so limited UDP probing is possible. PingKit's port scanner is TCP connect only.
Is port scanning my own network legal?
Scanning equipment you own or administer is normal diagnostic work. Scanning networks and hosts you do not have permission to test is a different matter and may be unlawful where you live. PingKit is built for the first case only.
Scan your own network from your iPhone
PingKit includes a TCP port scanner, a LAN device scanner, ping, traceroute and MTR. Nineteen tools, free, no ads and no account.
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