That said, I've done some consulting work on shopify stores, and I wouldn't be shocked at all to see something like that at all. The bar for code quality that a lot of low end consultants/designers deliver is just abysmal.
Anyone who cares about security will be using App Attest or the Google store equivalent.
I have something hilarious to tell you about IoT apps
Why? I rarely have security objectives where remote attention would help, and it has a huge impact on user freedom. For B2C attestation is just an evil captcha.
*almost, I have two things that need an app. My Vaillant boiler and my Yale alarm system. Both apps are terrible, but I have a 10 year warranty on the boiler and my alarm is up to scratch from a home insurance point of view.**
Vailant boiler - I wonder if there's a debug interface you can use. Not knowing specifics of your model, i foudn this: https://github.com/jayme-github/esphome_vaillant
Codex can help probably further heh.
https://yalehome.co.uk/yale-sync-hub
It's not really something I want 'home rolled', I just want it to work.
Same goes for the boiler really. If it stops working I can phone Valliant and they'll send someone round to fix it.