I tried porting a moderately complex workout app that I’ve built over years (and which includes a whole agentic loop) from web to iOS native. It took me a couple of evenings.
There is now no excuse to not offer a native experience for every supported platform when you are a bigger company.
Make one of the platforms using good coding practices. Vibe code the others from the source using a proper test battery.
Once the initial port is done, keeping platforms in sync is fast. Not to mention that a harness that would automate this would be valuable.
I run codex on an old rpi, it eats 190M of ram for what essentially is a telnet client.
Especially since users do prefer a native experience and having their RAM conserved.
Reason I’m asking is because I’d like to make native iOS apps just for myself rather than progressive web apps. But I haven’t understood the best way to distribute.