Cross-platform, and why it is usually the right call
Building separate native apps for iOS and Android means two codebases, two sets of bugs and roughly twice the cost. For most business apps, a cross-platform framework such as React Native produces apps that look and feel native on both, from one codebase. It also shares skills and sometimes code with a React or Next.js website.
There are exceptions: heavy 3D, unusual hardware access or very demanding performance. If your app is one of them, discovery will say so and the quote will reflect it.