Apps like PortDroid

Here are some great alternatives to PortDroid by Stealthcopter :
Network Utilities
Network Utilities
★4.6
Network Analyzer Pro
Network Analyzer Pro
★4.9
Network Tools: WiFi Analyzer,
Network Tools: WiFi Analyzer,
★4.1
Network Analyzer
Network Analyzer
★4.7
PingTools Network Utilities
PingTools Network Utilities
★4.6
Network Scanner
Network Scanner
★4.6
WiFi Tools & Analyzer
WiFi Tools & Analyzer
★4.7
Ping(Host) Monitor
Ping(Host) Monitor
★3.8
DR-NetTools
DR-NetTools
★4.5
Ping Master: Network Tools PRO
Ping Master: Network Tools PRO
★4.6
Net Tools (AdS)
Net Tools (AdS)
★4.3
Network Tools & Utilities, DNS
Network Tools & Utilities, DNS
★4.3
Ping & Net
Ping & Net
★4.6
WeeNet - Network Utility Suite
WeeNet - Network Utility Suite
★3.7
Fast Port Scanner
Fast Port Scanner
★3.5
Open WiFi Finder & Connect
Open WiFi Finder & Connect
★4.2