AWS will tell you as much as you want to know about how munch you’re spending. Cost breakdowns and billing alerts are more configurable than you’ll see pretty much anywhere else. This is a miscategorisation of the problem with AWS billing. The actual problem - which is not misunderstood - is that it’s complicated. There’s a reason that AWS has an unwritten ‘one-time get out of jail free card’ system if you accidentally mess up and charge $50,000 to your corporate credit card. And there’s a reason that a condition of this escape hatch is that you set up billing alerts like you should as a responsible person hooking up a PAYG service to what’s sometimes an effectively infinite line of credit.