Apps like Packet Injection

Here are some great alternatives to Packet Injection by Andro Softs - What Else ? :
NetPal - netcat for Android
NetPal - netcat for Android
★4.3
UDP/TCP Widget
UDP/TCP Widget
★4.9
TCP Ports list
TCP Ports list
★4.6
UDP TCP Server
UDP TCP Server
★4.1
iPerf2 for Android
iPerf2 for Android
★3.8
TCP Telnet Terminal
TCP Telnet Terminal
★4.3
Knock on Ports
Knock on Ports
★4.6
TCP UDP Server & Client
TCP UDP Server & Client
★4.5
TeslaModbusSCADA
TeslaModbusSCADA
★5.0
Net Tools (AdS)
Net Tools (AdS)
★4.3
Network Utilities
Network Utilities
★4.6
Advanced PortChecker
Advanced PortChecker
★4.3
Fast Port Scanner
Fast Port Scanner
★3.5
Mocha Ping Lite
Mocha Ping Lite
★4.0
UDP Guard
UDP Guard
★3.8
UDP Terminal
UDP Terminal
★3.9