[troymc]

As a general rule, an online server should never be left "open" so that anyone can run arbitrary code there. Such servers quickly get turned into bots for botnets (which do things like denial-of-service attacks for their commanders).

I suspect Anvil has that credit card requirement to prevent botnet recruiters from abusing Anvil's free trial. (Anvil lets signed-up users run arbitrary Python code on their servers.) By asking for a credit card, Anvil has the information they need to go after anyone who violates their terms of service.

Reflex doesn't have to ask for a credit card because you can try it out locally. With Anvil, there is no local dev, you do all the dev in your web browser, in the Anvil Editor app. It's not just a web framework; it's a Rapid Application Development suite.

[spxneo]

you think botnet operators are going to use anvil? i think you are being tad ridiculous here. this is a bad experience period. ive moved on and sticking to reflex

[troymc]

Google Cloud Functions is another online service where you can run arbitrary Python code "in the cloud" (on Google's servers). They have a free tier. And if you want to use it... you have to give them your credit card information. That's just how services like these work.

Reflex has nothing like that: you can't run your Python code on their servers, yet --- and once you can, you can be sure they're not going to let you try it for free without asking for your credit card.