I use iRecorder all the time: lectures, interviews, rehearsals, gigs...
I use iRecorder all the time, to record lectures, interviews, rehearsals, and even music gigs with my iPhone. I even used it to record an all-day seminar recently (with permission), and still had enough battery life left in my iPhone for an hour-long transit ride home. After 25+ years of dreaming of a useful, portable, easy-to-use, recording-on-the-go, digital-transfer-capable tool, this is all I ever use now.
I do wish for three improvements: a) that I could transfer files through a USB connection instead of only via wi-fi, b) that I could record telephone interviews with it, which would dramatically improve its usefulness as a business tool, and c) that either I could turn the recording levels down or it could self-adjust a little more than it already does (when I record from the middle of our 16-piece swing band, it still handles our "blastissimo" volume pretty well but we do strain its outer limits a little).
Still, when I think of how Ive struggled with recording-capable portable tape players, dictation machines, my entire stereo/mic system, non-Mac-compatible mp3 recorders/mics (finally getting better than the earlier options and which I still have), and most recently my beloved 5th Gen iPod with a MicroMemo mic (which works great and I still use at times, but my iPod battery dies after recording for 2 hours)... I love this app.
ea/ about
iRecorder Pro Audio Recorder