1.Polaris Office ($ 4.99, normally $ 12.99, universal, iOS 5.1 +) - View and edit Microsoft Office documents. Also linked with cloud storage services like Google Docs, Dropbox and Box.
Download: Polaris Office with discount
2. Compositions (free, normally $ 0.99, universal, iOS 6.0 +) - Nice simple text editor with Dropbox integration, Mac version and modern fonts.
Download: Compositions with discount
3. iSmoothRun Pro (free, normally $ 4.99, iPhone, iOS 5.0 +) - Bring your running routes and performance in image.
Download iSmoothRun Pro free (free for a limited time)
4. Tipulator (free, normally $ 4.99, iPhone, iOS 6.0 +) - Calculate how much tip you want or need to give, and divide by the number of diners.
Download Tipulator free (free for a limited time)
5. Articles (€ 0.99, normally $ 4.99 was universal, iOS 5.1 +) - View Wikipedia articles on iPhone and iPad in stylish way.
Download Articles with discount
6. Onsong (free, normally $ 9.99, universal, iOS 4.3 +) - Detailed application for music, playing music, lyrics and make notations.
Download Onsong free (free for a limited time)
7. Tapatalk - Community Reader (free, normally $ 2.99, universal, iOS 5.0 +) - Read and respond to various internet forums with this overarching app.
Download Tapatalk - Community Reader free (free for a limited time)
8. Outline + (free, normally $ 15.99, iPad, iOS 5.0 +) - Great app to create notes in Microsoft OneNote service.
Download Outline + free (free for a limited time)