What each approach actually means
Native means building separately for each platform — Swift for iOS, Kotlin for Android — using each platform's own tools. Cross-platform means one codebase that runs on both, usually with Flutter or React Native. Both ship real, store-quality apps; the trade-offs are in performance, cost and access to the latest platform features.
When native wins
Choose native for performance-critical apps, heavy use of device hardware (camera, sensors, AR), or when you want day-one access to new OS features. Native also tends to feel most at home on each platform. The cost is building and maintaining two codebases.
When cross-platform wins
Choose cross-platform when you need both stores from one team and budget, the app is more standard than hardware-heavy, and time-to-market matters. Flutter in particular delivers near-native performance for most apps. You trade a little raw performance and some bleeding-edge access for real savings.
A simple way to decide
Ask three questions. Does the app push hardware or performance limits? Do you need both stores at launch? Is budget tight? Performance-critical leans native; both-stores-on-a-budget leans cross-platform. Many business and consumer apps work well cross-platform.