I took a look at the Airtable Universe (love this place) to see if anyone had already created something similar and found this Family Chore Tracker example. I'm not 100% sure if it solves all the things you were hoping to achieve, but I thought the views by kid as well as the chore point tallies were handy. At the very least, maybe its something to borrow some inspiration from. Source: about 3 years ago

What do you think would improve by Stripe being in AWS? As a Stripe customer, I like the way Portal[0] allows me to outsource payments (almost) entirely. I don't see the advantage (relative to the cost) of building it into my product. 0 - https://stripe.com/blog/billing-customer-portal. - Source: Hacker News / over 1 year ago

The Customer Portal lets your customers self-manage their subscriptions. This lets them adjust quantities, and update their subscriptions. At the time of writing this article, we are running a closed beta for a no-code version of the customer portal - which means you’ll be able to take advantage of all of this functionality without having to write a single line of code! If you’re interested in trying this out,... - Source: dev.to / almost 2 years ago

The ability to change plans, download invoices, view next payment day is all part of the Manage Billing screen that Stripe gives you out of the box, check here. This is the #3 on the list. Source: almost 3 years ago