Audio Memos - Audio Memos is a voice recorder for the iPhone and iPad.
Xmind - Xmind is a brainstorming and mind mapping application.
Skyro - A gorgeous voice recording app with embedded images
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Quick Record - Voice memos audio recorder with iCloud sync
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.