Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Port Authority review

Free#18 of 26 in Port Scanner Software

A capable free Android scanner for LAN discovery and LAN/WAN TCP checks.

7.4/10Editor score
Visit Google Play
Port Authority7.4 Visit Google Play

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Port Authority is a free, open-source Android application for discovering hosts, checking TCP ports, and gathering network information. It is aimed at people who need LAN or WAN scanning from an Android phone or tablet rather than from a desktop security toolkit. Its feature set combines LAN host discovery, public IP discovery, custom port range scans, MAC address vendor detection, DNS record lookups, and Wake-on-LAN for LAN hosts.

Scanning covers both local networks and internet-facing targets, with TCP checks across LAN and WAN connections. Port Authority also provides lightweight SSH and HTTP(S) service fingerprinting, then lets users open discovered HTTP(S) services in a browser. That combination makes it useful for identifying reachable services and adding basic context to discovered hosts without requiring separate network utilities. Wake-on-LAN adds a practical device-management function for compatible LAN hosts.

The main trade-off is focus. Port Authority is available only on Android phones and tablets, so it is not a fit for teams that need a desktop or broader multi-platform workflow. The free pricing model keeps access straightforward, while a separate donate version is available through Google Play. The latest documented release is version 2.4.5, released in September 2022, and the Google Play listing shows an update date of September 11, 2022. Choose Port Authority for a mobile-first, open-source scanner with useful discovery and network utilities; choose another tool if you need a current desktop-centered platform or a broader operational workflow.

Port Authority pros and cons

  • Where it wins
    • LAN host discovery with public IP discovery
    • Custom LAN and WAN TCP port range scans
    • Service fingerprinting, DNS lookups, and Wake-on-LAN
  • Where it doesn't
    • Available only for Android phones and tablets
    • No paid tier for expanded capabilities
    • The latest documented release dates to September 2022

Port Authority fact sheet, pricing and score →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated · How we research and update