Let's Sing! 1.0 ($5) - Let's Sing! is a new music game for iOS devices that combines the fun of karaoke with a name-that-tune puzzle style. The object of the game is to sing a song without using the words, and to see if your friend can guess that song. Friends can be found using Facebook, or chosen by random via the app. [Download - 4.3MB]

Drafts 1.2 ($1) - Drafts for iPhone/iPad provides users with an easy way to capture and share ideas. With the latest 1.2 version, users can now post directly to Facebook, as well as send files to Evernote. Additional changes range from overall enhancements and bug fixes, to a new “Event” action for creating calender events. [Download - 2.2MB]

Zombie Ace 1.0 ($1) - Hothead Games recently introduced Zombie Ace, a new iPhone and iPad game where players use undead pilots to spread the zombie plague across 14 cities in the United States. The game features 100 playable missions, five different Zombie Ace pilots, and a variety of enemy bombers, jet fighters, and tanks. [Download - 25.2MB]

Instapaper 4.2.1 ($5) - Instapaper is designed to save web pages for later offline reading, and comes with adjustable font and text sizes. The latest 4.2.1 version offers an all-new Fast Pagination mode that greatly improves accuracy and page-turn speed, as well as Quotebook support and optional page-turning animations and gestures. [Download - 11.3MB]

Bridge Constructor 1.0 ($3) - Bridge Constructor is a new game for the iPhone and iPad that enables users to create unique bridges using wood, steel, cables, or concrete pillars. The game comes with 30 bridge-building levels to play through, which span five different settings such as City, Canyon, Beach, Mountain, and Hills. [Download - 49.1MB]