Hey Hopeful! I use my smartphone most of the time so that I can listen with headphones to block outside noise going on in the rest of the house. I log in via the website since I didn't want to use memory on my phone storing the app in between these free events. (but there is one available) I also use my laptop sometimes.
You have 5 days to access each day's meditation. So on the first day (not sure what time they load, sometime after midnight EST I believe) I can access Day #1.
On Day 2, I can access #1 and/or #2.
On Day 6, the first day falls off & I can access days 2-6.... and it keeps sliding forward like that. Today I can use days #7-11.
This is the first time *I've* managed to check in daily (so far) - I usually fall behind here & there & play catch up when I can, sometimes doing 2 in a single day like a Saturday morning/evening combo.
I hope this helps, let me know if you have any more questions!