Ok, so I searched the AppStore, Google and GitHub and I found some:
BF interpender WARNING: I had never tried or read a review about this product and I don't recognise the website so it can be a virus
VSCode Extension: Brainfuck Syntax
VSCode Extension: Brainfuck Syntax Highlighter
Atom Extension: Language Brainfuck
Kintone is a no-code/low-code platform that fits your needs.
Kintone's developer site provides a free Kintone environment for developers (the Developer License) to prototype and test out Kintone's features and APIs. You can find the guide to get the free environment here.