Note2Self

While the free Jott for iPhone (below) transcribes your voice memos, Web Information Solutions' $3 does not. So why would you want pay $3 for it? Because once you've recorded your voice memo, Note2Self will automatically send it to any e-mail address you specify; the free Jott doesn't offer the e-mail part. Also, you can record without pressing any buttons; the software uses the iPhone's accelerometer and proximity sensor to begin recording when you lift the iPhone to your ear (or simply shake it). It also automatically tags messages by location.

SpeechCloud Voice Dialer

Voice-activated dialing usually requires that you train the phone to respond to certain names before you can dial them hands-free. Adela Group's $5 does voice dialing one better: if a name is in your address book, you can dial it by simply speaking the name after touching the app's icon. This is great not only if you're too busy to dial, but also if you want to keep your hands free--for, say, typing on your laptop.

SugarSync