Twitter is digging deeper into mobile integration with its latest acquisition of Cover, the makers of the customizable Android lockscreen app.

Twitter is making several changes to its service by adding new functions, redesigning its website and acquiring new companies. The micro-blogging service has acquired Cover, the makers of the customizable Android lockscreen app. Naturally, the big plan behind this is a secret, but it seems as a sensible move.

Cover, which has grown to become a favorite lockscreen app for Android users, announced the acquisition in a blog post on its website, Monday. Twitter's plans and the terms of the deal were not disclosed, but Cover said it will work closely with the social network to "create something even better at Twitter."

Originally launched in October, Cover managed to attract a large chunk of loyal customers for its customizable lockscreen. The mobile app, which is currently in a beta test phase, learns the pattern of user's behavior and adjusts accordingly. For instance, Cover will display Maps and music apps during morning commute to work and change the icons to show a calendar and a To Do list when at work. Similarly, the app will adjust to user's daily routine and help access the right app at the right time and place.

The acquisition of Cover will not change the way it works, at least for now.

"Cover will remain available in the Play Store while we focus our attention on our work at Twitter," the Cover team wrote in the company's blog. "If that changes down the road, we'll provide another update here."

The Cover team will work with Twitter to design something new and different, which will help the social network to make a bigger impact in the mobile space. Using Cover's expertise for the process sounds reasonable as the startup managed to understand Android users better and built a product that was well-liked by hundreds of thousands of users.

"Twitter, like Cover, believes in the incredible potential of Android," Cover added. "They share our vision that smartphones can be a lot smarter - more useful and more contextual - and together we're going to make that happen. We'll be building upon a lot of what makes Cover great, and we're thrilled to create something even better at Twitter."

So far, it remains to be seen when and how Twitter will reveal its big plans on mobile integration.