WebTAK is the TAK client that runs in a web browser, so it needs no installation on the device. It is part of TAK Server: the server administrator turns it on.
This site does not host it. TAK Server is available on tak.gov.
Other clients
WinTAK-CIV
Windows client of the TAK family from the TAK Product Center.
- TAK client
iTAK
TAK client for iPhone, available in the App Store.
- TAK client
ATAK-CIV
Android client of the TAK family from the TAK Product Center. ATAK plugins load into it.
- TAK client