Building your app · Last verified 13 November 2026

Preview your app on your phone

Vunda Preview is a separate phone app that shows your saved design with your store's real products. Use it to check your app before you publish. It is not your published app, and nothing you open in it reaches shoppers.

Vunda Preview is only available when it is enabled for your store. If the App builder menu does not show Vunda Preview, or the page says Vunda Preview is not available for this store, it has not been enabled for you yet.

Preview your design

Open App builder, then Vunda Preview.

Get the Vunda Preview app. Choose Get Vunda Preview on TestFlight and install it on your iPhone. If there is no button yet, Vunda support will send you the install link.
Show the QR code. Choose Show QR code.
Scan it with your phone's camera. Vunda Preview opens your app. The first time, it asks you to Continue with Shopify for your store: sign in with the Shopify account you use for Vunda, and your app opens straight after. If Vunda Preview isn't installed yet, the code opens a page with the install link instead.

You can also open Vunda Preview first and sign in by entering your store. Once you're signed in, choose Open my app in Vunda Preview to open your latest saved design without scanning a code.

The QR code shows your design as it was saved when you made the code. If you save more changes in the App builder, choose Show a new QR code and scan again.

The link inside the QR code only picks which saved design to open. It doesn't give anyone access: whoever opens it still has to sign in with Shopify for your store.

What you can and can't do in Vunda Preview

You can browse the home screen, collections, product pages and the other screens in your design with your real products and prices. Checkout, customer sign-in, marketing sign-ups and other shopper actions are switched off, so nothing you do in Vunda Preview places orders or changes customer data.

Previewing does not publish anything. To publish, follow Publish to the App Store and Google Play.

Remove a phone

Under Connected phones, choose Remove this phone, then Remove phone. That phone has to sign in with Shopify again before it can open your designs. Deleting the app from the phone does not remove its access, so remove it here as well.

If something doesn't work

Your store isn't accepted when you sign in: make sure you entered the store where Vunda is installed and that your Shopify account can open Vunda in that store's admin.
The QR code doesn't open the app: make sure Vunda Preview is installed and signed in, then scan the code again with your phone's camera.
The phone shows an older design: choose Show a new QR code after saving, then scan the new code.

Vunda Preview also has an advanced Private drafts (beta) area for editing a separate private copy of your design. You don't need it to preview on your phone.