Contacts Groups for Lollipop is an Android app developed by Flipdog Solutions LLC that provides users with an alternative contacts app that includes the missing Groups feature in the default contacts app. After the update to Lollipop, many users were confused and upset to find that Groups were no longer available. Contacts Groups for Lollipop aims to fill this gap by offering a fully functional app with a similar look and feel to the 5.0 contacts app.

With Contacts Groups for Lollipop, users can easily create and manage groups alongside their existing contacts. The app can be placed right next to the default contacts app, allowing for easy access when working with groups. It also offers the ability to sync contacts from the stock contacts application, enabling the creation of groups from existing contacts.

It's worth noting that while Contacts Groups for Lollipop is free to download, it does require a small in-app purchase of $0.99 after a certain period for continued usage. Without the purchase, the app will cease to function. The permissions required for the in-app purchase and contact syncing are necessary for the app's functionality.

Please note that Android is a trademark of Google Inc.