If you like your invite apps dead-simple, check out Mobaganda. You don’t even have to log in. Just click on start, add the name, date & time, and location, and create an event. The site, which is built on the Google App Engine, generates a Webpage that you can e-mail out to all of your friends.

Once the recipients go to the URL they can RSVP, and you can keep track via RSS or by checking back at the unique URL, which lasts for 30 days. (One downside is that no two events can share the same name during that time period).

Here’s an invite page I made in about a minute for a fake TechCrunch party:

The site generates an e-mail address that can be used to contact everyone on the RSVP list. You can also keep track of the RSVPs through Google Reader:

Or as a widget on iGoogle:

Not that we need more ways to invite friends to parties (see Pingg, Socializr, MyPunchbowl, etc.). But Mobaganda does reduce the process to its bare essentials. (The UI sensibility reminds me of Presdo). It got started as a conversation between Web developer Jason Stirman and Twitter founder Evan Williams. the question they were pondering: Would it be possible to create a better Evite, without even requiring a signup or login?”

Stirman is the creator of OhDon’tForget, a Ruby-on-Rails app that lets you send yourself pre-set reminders via text message (Time picked it as one of its 50 Best Websites last year). Stirman plans on adding text reminders to Mogabanda using OhDon’tForget (when you RSVP, you will be able to add a cell number to get a reminder the day before the event). he is also thinking of ways to add notes, maps, and other features. But he wants to keep it as simple as possible. After all, it is supposed to be the anti-Evite.