We use KMP for core business logic on iOS web and android. If we started over I’d do all our apps in KMP end to end except maybe web since there’s some stuff we need wasms for.

Core business logic let’s you you write once and update everywhere to avoid discrepancies across platforms for the most critical processes. Id advise doing this if you’re planning to change

Just fyi though you do need about 2-3 weeks to train a kotlin dev to learn KMP. There’s a shortage of KMP devs so that’s the best way to find them

For backend? Id need to investigate more but my first thought is there’s likely better languages for this like Go or even Laravel and you’d get more willing participants (Kotlin guys tend to be front-enders)

That high churn means you’re not meeting customer expectations. Talk to the customers who stayed and those that didn’t

Recovering churned clients is on of the most cost effective customer acquisition channels you can find.

I don’t think you’re doing so well since 21% MOM means people are cancelling after they figure out you expectations are met and those that stayed probably just forgot to remove the subscription since in 5 months they’re all gone