Mind sharing the link to the good one? I'm sure they're jam-packed right now if they're one of the 20% still available, but would be good to know for future reference.
Oh, so if my app is currently under all the Free tier quotas for DB/Hosting/Storage/transfer, I could sign up for Blaze and my cost would be $0? I didn't realize that, the pricing page doesn't seem to make that clear to me.
Edit: Actually, if I'm exploring this price calculator right, it appears that there is no free tier for DB if you are on Blaze, only a free tier for Functions. Which suggests I should leave my Free tier plan as is, set up a second project that only has Functions that make external calls in it, sign that up for Blaze, and call those functions from my free tier functions... Convoluted, but hey, it'd be free.