It's a bit funny: Standard plan ($8.50 per month if paid annualy is $102) while the credit is $100 (which gives 10 months nonetheless) :)
Edit: as the other comment said, it's $8.50/per user/per month... and event though comment https://news.ycombinator.com/item?id=11118413 says " Good point, we've removed that line. Thanks for your feedback!" (which is great!), it seems to be there (after a hard re-load).
Edit: as the other comment said, it's $8.50/per user/per month... and event though comment https://news.ycombinator.com/item?id=11118413 says " Good point, we've removed that line. Thanks for your feedback!" (which is great!), it seems to be there (after a hard re-load).