Excellent

I used to buy those little gadgets that let you record 10 to 20 second voice memos. Problem was, when you recorded a new one, the old one was erased. I wound up not using them. This app has a few advantages over the old technology: it can be used without Wi-fi, it keeps your memos until you erase them, it sends you reminders! I havent gotten any reminders yet, but am curious to see how they work. You can even send a reminder as an email.
Maybe this is the one I will actually USE.

Leftycombo about Say&Go Voice Notes and Inbox