http://online-audio-converter.com/ A free online app that converts audio files for you. The app supports all formats, processes your files quickly, and does not require installation.
Booktrack Support Getting Started, Tutorials and Videos: http://support.booktrack.com/hc/en-us/sections/200411564-Getting-Started-Tutorials-and-Videos Detailed written and video tutorials for showing the basics for making and publishing a Booktrack. Tips & Tricks: http://support.booktrack.com/hc/en-us/sections/200411554-Tips-Tricks Various tips and tricks from users. Vote for the most helpful tips.
https://itunes.apple.com/us/app/audio-memos-free-voice-recorder/id304075033?mt=8 Audio Memos is a voice recorder for the iPhone and iPad. What you’ll really like about Audio Memos, is that you can actually HEAR your recordings (try it and compare, you’ll hear what we mean). It’s also easy to use, with a simple and intuitive interface.