Very Limited

Although theres nothing (that I noted) in the description that explains the limitations of the free app, it will only let you listen back to the first 4 or 5 recordings (in my case, of about 10 during my first night of using) without buying the $.99 app. After going ahead and buying the app, I turned syncing on on both apps but still was not allowed to listen to the restricted recordings. Kept telling me to buy the app, which I had already done.

Rainsft about Prime Sleep Recorder & Tracker