Flutter
A toolkit from Google for building apps.
You write your app once and it runs on both iPhone and Android, which halves the work.
How it works
How an app fits together.
If the words are new, start here. This is the whole path from an idea to an app on someone's phone, in plain language, with none of it behind a paywall.
You + Claude Code
You describe what you want. Claude Code writes the app with you, one step at a time.
Your app
A real app, built with Flutter, that runs on both iPhone and Android from one codebase.
Your backend
Where your data lives and your logic runs, hosted on Back4App so you do not manage servers.
The app stores
You submit the finished app to Apple's App Store and Google Play for review.
Your users
People find your app, download it, and use it on their own phones.
The pieces
Each part, and why it is there.
Dart
The programming language Flutter uses.
It is the language you (and Claude) write the app in. Readable, and made for building interfaces.
Back4App and Parse
A ready-made backend in the cloud.
Your app needs somewhere to store data and run logic. Back4App provides that so you do not set up servers.
Firebase
Google's service for push notifications and more.
It handles the plumbing for things like notifications, so your app can reach users after they close it.
App Store and Play Store
Apple's and Google's app marketplaces.
The only way real people install your app. Each reviews submissions before they go live.
Claude Code
The AI that builds alongside you.
It reads the stack's rules and writes the app with you, catching mistakes as it goes.
This is the stack Zovia Snapshot hands you.
Not a diagram to admire, the real thing, as source you own, with the rules and guardrails that make it hold together. If the path above makes sense, you already understand what you would be building on.