Quickstart
Go from an idea to a generated, validated app you can test on your phone.
Before you start
You'll need:
- A phone (iPhone or Android) with a camera
- An AppX account
- Optional, Android only: the Expo Go build for SDK 54 from Expo's download page, if you want the app inside Expo Go rather than the browser
Step 1 — Sign up
Go to appx.uz and create an account.
Every plan comes with monthly credits. The entry plan, Basic, has 100 credits a month; current prices are on the pricing page. You need at least 30 credits to start a first build. See Credits for how credits are spent.
Step 2 — Describe your app
On the dashboard, type your app description in the box and press the arrow (Build app). AppX names the project from your prompt; rename it later in Settings.
Be concrete about the screens and the key features:
Build a personal finance tracker with:
- A home screen showing this month's spending summary
- An add-transaction screen with a category picker
- A history screen with filters by month
- A clean dark theme
Step 3 — Review the plan and build
Every new app starts with a plan card: the planned screens and "About N credits". Press Build first milestone to start, or Stop if the plan is not what you want.
A build is priced by the work it takes, not per screen. For scale: a 5-screen recipe app used 29 credits and a 2-screen water tracker used 16. If a build fails, you are not charged.
Build time varies with the number and complexity of the requested screens.
Step 4 — Open it on your phone
Click Open on phone in the top bar. Scan the QR with your phone's camera, then tap Open the app; the app opens in your phone's browser. On Android you can tap Open in Expo Go instead; that needs the Expo Go build for SDK 54, not the Google Play version.
Your app opens on your phone. Tap through it exactly as your users would.
Step 5 — Make a change
In the chat, describe what you want changed. Name the screen in your message:
On the Home screen, make the background a deep navy and bump the balance
number up to a large bold heading.
AppX reads your current code and applies the edit, and the preview updates. On your phone, reload the page in the browser (in Expo Go on Android: shake → Reload) to see the change; it opens at the first screen.
Edits are metered, with a minimum of 1 credit per turn. To go back, use Undo on the turn card.