It's not much different from the GPL. The AGPL closes one loophole in the GPL and that's pretty much it. The GPL license essentially triggers on distribution,

It's not much different from the GPL. The AGPL closes one loophole in the GPL and that's pretty much it. The GPL license essentially triggers on distribution, but if you have some SaaS app it's not clear that this falls under distributing your code since you're accessing what the code produces over a network. This is usually known as the "Application Service Provider" hole in the GPL. With the AGPL that hole is closed and you have to be able to receive the source code for that app too. This is all explained right here: https://www.gnu.org/licenses/licenses.html#AGPL https://www.gnu.org/licenses/licenses.html#AGPL