# What you can build

> This page is about FlutterFlow (the app builder you use by describing your app), not FlutterFlow Studio.

URL: https://docs.flutterflow.io/ffx/what-you-can-build

Learn which apps suit FlutterFlow, where your app runs, what's built into FlutterFlow, and what you ask the agent to add.

FlutterFlow builds iPhone and Android apps from your description, and you can also open your app in a browser with a link. This page covers which apps suit FlutterFlow best, where your app runs, what's built into FlutterFlow, and what you ask [the agent](https://docs.flutterflow.io/ffx/glossary#the-agent) to add.

## Apps that fit {#apps-that-fit}

FlutterFlow builds mobile apps, and its examples cover money, habits, and shopping. When you start a new app, FlutterFlow offers three examples under the prompt box: a finance app, a habit tracker, and a marketplace. To fill the prompt box, select any example, and then edit the prompt. See [Write a prompt](https://docs.flutterflow.io/ffx/write-a-prompt).

## Where your app runs {#where-apps-run}

Your app runs in three places: in the preview inside FlutterFlow, in a browser through a [share link](https://docs.flutterflow.io/ffx/glossary#share-link), and as a phone app on iPhone and Android.

Owners and developers build iPhone and Android apps in [**Releases**](https://docs.flutterflow.io/ffx/glossary#releases), which also handles testing and review in the App Store and Google Play through your own developer accounts.

**Share › Link** publishes your app on the web. Anyone with the link can open your app in a browser. Some browsers, including those on iPhone and iPad, also show an **Install** button to add the app to the device. FlutterFlow assigns the link's address.

See [Put it on the web](https://docs.flutterflow.io/ffx/share-a-link#web) and [Ways to run your app](https://docs.flutterflow.io/ffx/ways-to-run).

## Built in {#built-in}

FlutterFlow includes the following ready-to-use parts:

- **The agent:** builds and updates your app's screens, behavior, and look when you ask in a [thread](https://docs.flutterflow.io/ffx/glossary#thread).
- **A built-in backend:** stores your app's records, signed-in people, uploaded files, and secrets. See [How the backend works](https://docs.flutterflow.io/ffx/backend).
- **Connections:** let your app and the agent call outside services. See [How connections work](https://docs.flutterflow.io/ffx/connections).
- **Share links:** open your app in a browser.
- **Releases:** builds your phone apps and sends them to the stores.

## What you ask for {#what-you-ask-for}

You build and change your app's screens, behavior, and look by asking the agent in a thread. Owners and developers can start threads, and the person who starts a thread pushes its changes to your app when they're ready. See [Push](https://docs.flutterflow.io/ffx/push).

You can ask the agent to set up features that run on FlutterFlow's built-in tools:

- **Records and files:** describe what your app saves and who can access it. See [Tables and fields](https://docs.flutterflow.io/ffx/change-tables).
- **Sign-in:** let people sign in with an email and password, as a guest, or both. Google and Apple sign-in aren't available. See [Add sign-in](https://docs.flutterflow.io/ffx/add-sign-in).
- **Payments:** take one-time payments or subscriptions through Stripe Checkout after an owner connects Stripe. See [Stripe](https://docs.flutterflow.io/ffx/stripe).
- **Other services:** call services that an owner connects in **Project Settings › Connections**. See [Connect a service](https://docs.flutterflow.io/ffx/connect-a-service).

To add a feature such as maps, ask the agent in a thread. While the agent builds a feature like this, it tells you that it can't try the feature.

## What isn't available {#not-available}

The agent writes and updates your app's code in threads. You can download your app's compiled phone builds from FlutterFlow, but you can't download or export its source code or send it to GitHub.

To give the agent code to work from, paste it into a message or attach it as a text file. For the full list of what FlutterFlow doesn't include and what to do instead, see [Not available](https://docs.flutterflow.io/ffx/not-available).

## Next steps {#what-you-can-do-next}

- [Build your first app](https://docs.flutterflow.io/ffx/first-app)
- [Write a prompt](https://docs.flutterflow.io/ffx/write-a-prompt)
- [Ways to run your app](https://docs.flutterflow.io/ffx/ways-to-run)
- [Not available](https://docs.flutterflow.io/ffx/not-available)