Difference between smart alarm and smart wake up?

I am currently using the free version of the app. All I care about is the smart alarm which wakes me up at the optimal moment during the smart period. Is this feature in some way limited compared to the paid version of the app? I am asking because in the app I saw that “smart alarm” is a feature available for free but “smart wake up + sleep analysis” only works every 2nd day in the free version. What does smart wake up exactly refer to here? Does the app still wake me up at the right moment every single day?

Hi @Syckor,
the smart alarm is an alarm with additional advanced features - gentle volume, CAPTCHAs, smart lights… and these features work without limitations.
The smart wake-up is an alarm timing based on the sleep phases - this feature requires sleep tracking active, so in the free version, it works every 2nd day.