Credit pays for Cloud compute only. Plans are billed apart from it.
Buy credit from $10, by card, on Stripe’s own page. Bought credit never expires.
Every new personal account, and the first organization each person makes, gets a $10 starter credit, for 30 days, with no card needed.
An organization starts apps in Thinair Cloud on its starter credit before it has Thinair Pro. With none, or once that is used up or ends, starting new ones needs Thinair Pro. Apps already running keep running while it has credit.
Automatic refill adds credit when your balance runs low, for example $20 when it falls under $5. You set a monthly limit, and it never passes it.
You are warned before your balance reaches zero. At zero, your Cloud apps go to sleep with everything kept. Nothing is deleted for money.
Unspent credit you bought can be refunded. Starter credit cannot.
Where to buy
Thinair Settings ▸ Billing in the app, or Billing on your Thinair Cloud account page. Only an owner buys, and pays on Stripe’s own page.