Since being purchased by Twitter in 2011, TweetDeck has gone through a number of changes. The last of which came in December of last year. Now the service is moving ahead with a new Web app, but the mobile apps won’t be along for the ride.

The TweetDeck team announced that it would be discontinuing its support for the TweetDeck mobile apps in the coming months. The apps affected are TweetDeck for Android, TweetDeck for iOS and TweetDeck AIR. The apps will be taken off their respective app stores in May, and will stop working shortly after.

The move away from native mobile apps to a Web app was spurred in part by the majority of TweetDeck users moving to the Web as well:

In many ways, doubling down on the TweetDeck web experience and discontinuing our app support is a reflection of where our TweetDeck power-users are going. Over the past few years, we’ve seen a steady trend towards people using TweetDeck on their computers and Twitter on their mobile devices. This trend coincides with an increased investment in Twitter for iPhone and Twitter for Android –– adding photo filters and other editing capabilities, revamping user profiles and enhancing search. That said, we know this applies to most of our users –– not all of them. And for those of you who are inconvenienced by this shift, our sincere apologies.

Those wanting to stick it out until the apps are killed off in May might have a few problems with the apps as they run off of version 1.0 of the Twitter API. Twitter will be retiring this API this month so TweetDeck says the apps may suffer some outages until they are officially killed for good.

Fans of the desktop app will be pleased to know that those will not be getting the axe as part of TweetDeck’s new Web-centric focus. In fact, the team says that the updates hitting the Web app will come to the Mac and Windows clients soon after.