Sometimes it's a big help to be able to record lectures or seminars, for either absent friends, or because you know you may want to review it later, to go over tricky points, or just slow down the lecturer. Dictaphones still have their place, but in these smartphone days, recording audio is almost what a phone is designed to do. And, for iPhone or iPad owners, there's no better options than Voice Record Pro, which despite the 'Pro' label, has recently become free. What sets it apart from Apple's own voice memo app for the iPhone, is that you can do anything you need with the audio after it's captured. You can trim it, convert it into an MP3 (from its native M4A/MP4), or share it by email, or via cloud services including Dropbox, Google Drive, and Microsoft SkyDrive. It also looks rather cool. You can also take notes directly into the app, and add a photo, both of which will be embedded into the exported file.
Available on the iTunes store.