Native development
You can develop a native Android app with Java or Kotlin and choose Swift and Objective-C for iOS apps.
Native apps are known to provide an exceptional user experience as they are generally high performing. The user experience is also improved as the images are adapted to the UX platform. However, startups are concerned about the high cost of native app development as they need to run concurrent development for both platforms.
We have teams in Java/Kotlin as well as in Swift/Objective-C to help our clients reduce their development costs
Cross-platform development
Is also an option at InsideIT, It points to the process of creating an application that works on various platforms. This is done by using tools like React Native, Xamarin, and Flutter, where the apps created can be deployed to both Android and iOS.
While cross-platform development saves time and cost, you risk sacrificing quality in the process. It is difficult to scale an application to run optimally on multiple platforms, and the application will need an additional abstraction layer when it runs, resulting in lower performance.
Startups will favor the reduction of time and cost with multiplatform development. However, you should be aware that it may be more difficult to customize the application beyond what is allowed in the framework.
Our team has almost 5 years of experience building cross-platform applications, too.