I think my Coda docs just hit the price wall and died 
I have a to-do list, plus some other docs that I use because it’s really handy to be able to mix text and tables. There is no team and there are no Editors. But, I get fancy with customizing things, which is why I love Coda.
Basically I would be paying $120 /year for a to-do list and some other bonus items. It’s just not worth it…
$10 a month might not seem like a lot, but $120 is half the cost of my computer.