The most popular free Mind Mapping app for iPhone, iPad.
Free Adobe Photoshop Express app for iPhone iPad.
Adobe Scan – free PDF scanner app turns your iPhone iPad into a powerful portable PDF scanner that support OCR and recognize text automatically.
iZip is an easy ZIP file management tool on iPhone and iPad which can unzip files from various zip formats, compress files into zip files.
Awesome Voice Recorder Pro is best voice recording app for iPhone with cool interface and perfect functionality.
PDF Converter can create PDF files from Word, Excel, Powerpoint or iWork documents, web pages, photos and even clipboard content on iPad or iPhone.