The world of mobile development is increasingly turning towards cross-platform solutions. Today, few people are surprised by products written on Flutter or Kotlin Multiplatform — these technologies are used by both startups and giants like Google or BMW. But behind the promised savings in resources and speed of development, there are nuances: from the pitfalls of integration to anti-patterns that can destroy the project.
Why is everyone running to cross-platform?
Resource savings — one app instead of two (iOS and Android).
Fast time-to-market — release of features simultaneously on both platforms.
One team — fewer gaps between Android and iOS developers.
UI/UX unification — common visual language.
But the reality is much more complicated: cross-platform doesn't always mean "cheap and fast".
Flutter: Strengths
Development speed: hot reload and a developer-friendly approach.
UI without compromise: customization of almost any element.
Flexibility: integration with the native through platform channels.
Active community: hundreds of plugins and ready-made solutions.
Flutter use cases
Alibaba — The Xianyu app on Flutter is used by millions of users.
BMW — Flutter became the basis for a new mobile ecosystem.
Google Pay — Flutter allows the team to scale the product faster.
Small startups — quick MVP launch and hypothesis testing.
Where the problems begin
Complex animations and performance: for heavy 3D or AR scenes, native is still better.
Updating plugins: popular packages are supported, but custom solutions often have to be written by yourself.
Integration with native: the deeper, the more painful. Especially if you need access to low-level APIs.
Application size: Flutter builds are often heavier than native builds.
Antipatterns in cross-platform ❌
"Flutter will solve everything" — choosing Flutter for hype, without analyzing real tasks.
Ignoring UX differences between iOS and Android.
Huge mono-racks with a "common code", which eventually turn into a swamp.
Refusal of native solutions where they are needed (e.g. working with Bluetooth or biometrics).
Kotlin Multiplatform vs Flutter
Characteristics | Flutter | Kotlin Multiplatform |
|---|---|---|
UI | Fully custom | Native UI |
Entry threshold | Low | Medium/High |
MVP speed | Very high | Average |
Suitable for | Startups, MVP, mass products | Enterprise, complex systems |
Cross-platform is no longer a compromise, but a working tool. Flutter is great for quick launches and large-scale products, but it requires discipline and common sense.
The main rule:
If you need a quick MVP or a product with a rich UI, we take Flutter.
If the priority is reliability and work with business logic on both platforms, we look at Kotlin Multiplatform.
And if you want to go deeper, Codice We are preparing training courses. In the application, you can learn programming languages, practice on real tasks, so as not to repeat the mistakes of others.
And we also have an active Telegram channel, where we discuss cool ideas, share experiences and analyze tasks together — learning becomes not only useful, but also fun.