Community Inviter vs LinkUpdater

Let people join your slack community.

Automated way of increasing your slack community members. Your users will be able to sign up to your Slack community in a breeze. It is possible to either manually or automatically approve join requests.

LinkUpdater - Service to track changes on sites officially launched!

Now you do not need to go to sites and check for updates —LinkUpdater will do it for you!
With LinkUpdater you can:
1.Follow the changes on interesting resources;
2.Specify up to 10 tracking zones per page;
3.Detect text and link changes;
4.Compare changes and watch history;
5.Receive notifications when changes are detected.
We are pleased to announce that LinkUpdater has become multilingual! Currently 2 languages are supported - Russian and English.
LinkUpdater is really worth your attention!

Location: Nikolaev, Ukraine