Need help with iOS and Android app development basics

Iphone
1

I’m starting my first mobile project and I’m confused about where to begin with iOS and Android app development. I’m not sure which tools, languages, or frameworks are best for building one codebase that works on both platforms. I’d really appreciate guidance on recommended tech stacks, learning resources, and common beginner mistakes to avoid so I can plan this project the right way.

2

Short version for one shared codebase:

  1. Easiest start: Flutter
  • Language: Dart
  • Tools: Android Studio or VS Code
  • Output: iOS and Android from one codebase
  • Pros:
    • Great docs and tutorials
    • Hot reload, fast UI work
    • Same UI on both platforms
  • Cons:
    • App size a bit bigger
    • Some platform specific stuff needs plugins or native code
  1. Most “official” cross platform: React Native
  • Language: JavaScript or TypeScript
  • Tools: VS Code, Android Studio, Xcode
  • Pros:
    • Uses React, huge JS ecosystem
    • Many UI libs, many tutorials
  • Cons:
    • Performance can get messy if you dont know what you’re doing
    • Native modules sometimes break with upgrades
  1. If you like C# or .NET: .NET MAUI
  • Language: C#
  • Tools: Visual Studio
  • Pros:
    • Strong if you do backend in .NET too
  • Cons:
    • Ecosystem smaller than Flutter or React Native

What I would do as a first project:

Step 1
Pick Flutter unless you already know React. It is easier to think in.
Install Flutter SDK, Android Studio, Xcode if you use macOS.
Run “flutter doctor” to fix setup.

Step 2
Follow 1 complete tutorial app from start to publish. For example:

  • Simple TODO app with local storage
  • Then add networking, like calling a REST API

Step 3
Learn these basics, nothing fancy:

  • Navigation and routes
  • State management (start with setState, then maybe Provider or Riverpod)
  • HTTP calls and JSON parsing
  • Handling different screen sizes

Step 4
When you hit a feature that needs platform code like notifications or camera
search “flutter plugin” on pub.dev
Use plugins instead of writing native code at first.

What to avoid early:

  • Custom complex architecture
  • Big state management frameworks on day 1
  • Trying to support every device and OS version right away

Once you ship 1 small app, the tool choice will feel less confusing.

3

@caminantenocturno covered the “pick a cross‑platform framework” angle really well, so I’ll throw a slightly different perspective at you instead of repeating the same Flutter / React Native steps.

If this is literally your first mobile project and you’re overwhelmed, one controversial take: don’t start with cross‑platform at all.

Why?
Cross‑platform sounds simpler, but in practice you end up confused by:

  • The framework itself
  • iOS vs Android platform differences
  • Tooling on both sides
  • Plugins that wrap native stuff you don’t understand yet

It’s like learning to drive and starting with a bus.

A different starting path

  1. Pick one platform for 1 very small app

    • If you have a Mac: start with iOS + Swift + SwiftUI
    • If you don’t: start with Android + Kotlin + Jetpack Compose

    Build something tiny:

    • 3–4 screens
    • Simple navigation
    • Local data only (no backend at first)

    This gives you:

    • Real understanding of views, navigation, lifecycle
    • Actual feeling for what’s “native” on each platform
    • Less tooling pain, because you only deal with Xcode or Android Studio, not both plus a framework

  2. Then move to shared code

    Once you’ve shipped or at least finished a tiny native app, then look at cross‑platform so your brain isn’t guessing what the plugins are actually doing.

    At that point, yes, I’d say:

    • If you like declarative UI and don’t mind a new language: Flutter
    • If you already know JS/TS and React: React Native
    • If you’re already in .NET world: .NET MAUI

    But now you’ll better understand:

    • Why some plugins break on platform updates
    • Why “it works on Android but not iOS” is a thing
    • When you might actually prefer a native screen for some flows

  3. Think in terms of risk, not just convenience

    For a first project:

    • Biggest risk is quitting because it feels too complex, not picking the “wrong” framework
    • Native solo platform = clearer docs, fewer moving parts
    • Cross‑platform from day 1 = faster reach, but higher mental load

  4. Tooling stack suggestions

    If you go the “native first” route:

    • iOS:
      • Xcode, Swift, SwiftUI
      • Follow the “Landmarks” tutorial from Apple, then adapt it into your own app
    • Android:
      • Android Studio, Kotlin, Jetpack Compose
      • Do a basic “Notes” or “Tasks” app using Room or simple in‑memory list

    You can still later migrate the idea to Flutter / RN once you understand the basics of layouts, navigation and app lifecycles.

So I slightly disagree with the “just start with Flutter” advice for everyone. If you already know React or JS, React Native might feel more natural. If you’re brand new to everything and already feel lost, starting native on a single platform can actually make your future cross‑platform life way easier instead of harder.

TL;DR:

  1. Start with one small native app on a single platform.
  2. Learn views, navigation, basic data.
  3. Then pick Flutter / RN / MAUI with a lot less confusion.