Click the Plus button to add on to existing recordings.

BIAS knows a thing or two about audio; its thousand-dollar Peak Pro XT suite rules the Mac audio editing world. Now, its one-buck iProRecorder app rules as far as features go, but buggy performance lands it in lower in a valley.

If all you need is easy one-touch recording, iProRecorder has you covered, but it also piles on a lot of extras you don't get in many similar apps: three playback speeds, seven category folders, pause and resume during recording, adding on to old recordings, photo tagging, three-second countdown before recording, and timed recordings from one minute to 24 hours. The app records WAV files in three quality grades (up to CD-quality), and you can email recordings up to 10MB to any address. For larger files, you can download them to a computer with a Web browser on a Wi-Fi network.

Spotty performance holds iProRecorder from its lofty potential. We ran into occasional crashes while playing back, fast-forwarding, and rewinding.