Shazam Encore 5.5 ($7) - Shazam Encore is a music tagging tool that can identify songs simply by listening to them. An all new tagging screen that responds to the sounds around a user has been implemented in v5.5, along with the ability to search through all tagged items by artist, song title, tag dates, and locations. Shazam Encore will also recognize when songs are tagged without an active internet connection and set the songs to be tagged automatically when a connection becomes available. [Download - 8MB]

Projectbook 1.2 ($2) - Projectbook is a notebook app that can store notes, to-do lists, Word docs, web clips, sketches, and more. Version 1.2 lets users sync notes and to-dos automatically via iCloud, and features support for wrapping text around images and zooming into notes with a pinch gesture. E-mails can also now be downloaded in the background while writing notes. [Download - 29.4MB]

Plex 3.0.2 ($5) - Plex can be used to stream music, videos, and photos from any home computer running the Plex Media Server. A new alert that informs users when playback is started on a remote player has been added in this release, as well as improved alerts when playback fails. A host of bugs, including an issue that prevented Direct Play from working over remote connections, have also been resolved. [Download - 12.4MB]

Twitterrific 5.0.1 ($3) - Twitterific is a mobile Twitter client that allows users to view their timeline, reply to tweets, and translate tweets. In v5.0.1 swiping left or right with two fingers will now switch the app between dark and light themes, and new sound effects have been added for all swipe gestures. Pinboard support for bookmarking links and tweets is also featured, along with improved performance and various bug fixes. [Download - 5.2MB]

Fieldrunners 2 HD 1.3 ($8) - Fieldrunners 2 HD is a tower defence game where players must defend their world from invasion. Over 25 levels that span across grass fields, deserts, and cities are included, as well as 25 unique, upgradable weapons. Two brand new weapons, the Polymorph Tower and Napalm Tower, are included in the v1.3 update, along with two new Christmas themed items. An all new coin store has also been added, and various issues related to iCloud integrated have been addressed. [Download - 323MB]