1
Review your setup
Open AppBuilder from Shopify Admin and use the dashboard checklist to confirm your store and catalog are ready.
Official support · Kernvel - Mobile App Builder
Build and publish with clear next steps
Find practical help for shaping your storefront, checking the shopper experience, publishing a web app, preparing native apps, managing your plan, and protecting store and shopper data.
Design
Brand, pages & navigation
Publish
Web, Android & iOS
Manage
Billing, privacy & deletion
Start here
From installed app to shopper-ready experience
Work through these four checkpoints in order. You can return to the builder and refine the experience before publishing again.
2
Shape the design
Use Builder to arrange pages, navigation, colors, type, imagery, and the shopping features you want customers to use.
3
Preview and save
Check the mobile preview, open products and menus, then save your draft when the experience looks and behaves correctly.
4
Publish deliberately
Start with the web app for fast device testing. Prepare Android or iOS only when your own platform accounts are ready.
Design & preview
Make every visible feature earn its place
A polished app is more than brand colors. Check what shoppers can find, tap, understand, and complete from each screen.
Brand and layout
Set your logo, colors, typography, banners, and content sections in Builder. Keep important products and actions near the top, and review generated text before saving it.
Pages and navigation
Confirm every enabled destination has a clear path in your bottom navigation, menus, home sections, or product flow. Remove links to anything you are not ready to offer.
Mobile preview
Open menus, search, a product, the cart, account areas, and checkout handoff. Test long titles and real catalog images, then save the draft you intend to publish.
Changes are not appearing?
First confirm the latest draft was saved. If you are checking an already published web app, return to Publish and regenerate it, then reopen the live link. A browser refresh may also be needed after a new release.
Publishing & installation
Choose the release path that fits your store today
The installable web app and native store apps are separate destinations. Publishing one does not automatically publish the others.
Progressive web app
In AppBuilder, open Publish, choose the web app, complete the readiness checks, and generate or regenerate it. Open the live link on the device you want to test.
On Android, use the browser menu and choose Install app or Add to Home screen. On iPhone or iPad, open the link in Safari, use Share, then choose Add to Home Screen. Wording can vary by browser and device.
Android and iOS
Native apps require merchant-owned Google Play or Apple developer accounts and the release credentials requested inside AppBuilder. Keep those accounts, agreements, fees, and credentials current.
AppBuilder can help prepare configured native builds and run readiness checks. You remain responsible for reviewing the store listing and release, and Apple and Google independently decide approval and timing.
A safe way to test
Publish the web app first and test it on a real phone. For native work, use a preview build before preparing a merchant-signed store release. A preview does not prove push delivery or guarantee store approval.
Billing & plans
Plan changes stay inside Shopify
Use the Billing page in AppBuilder to compare available plans, included features, and usage limits before making a change.
Upgrade
Select an available paid plan from Billing. Shopify shows the charge for your approval before the paid subscription begins.
Review usage
Check the plan and usage bars shown in the app before using metered features such as AI actions or builds. Limits reset or apply as described on the Billing page.
Cancel
Manage your subscription through Shopify Admin. Uninstalling the app cancels its subscription under the terms shown for the service.
Need help with a charge or plan?
Do not approve a charge you do not recognize. Email the store's
.myshopify.com domain and the plan or charge shown on screen—never send a password or access token.
Privacy & deletion
Clear routes for merchants and shoppers
Use the route that matches whose data is involved. The Privacy Policy contains the complete retention and deletion details.
Merchant store data
After uninstall, store data is deleted within 30 days as described in the Privacy Policy. An authorized merchant can request earlier deletion by emailing support and including the store's .myshopify.com domain.
Shopper account data
An authenticated shopper can request deletion from the generated app. The shopper may also contact the merchant or Kernvel support. AppBuilder requests erasure through Shopify and removes its related shopper data when Shopify accepts the request.
Protect sensitive credentials
Never email passwords, access tokens, private keys, signing files, or app-store credentials. Enter credentials only in the protected fields provided inside AppBuilder.
Contact support
Tell us what you were trying to do
Include your .myshopify.com store domain, the AppBuilder page you were on, what you expected, what happened, and a screenshot with sensitive values hidden.
Support email is reviewed during business hours. Response timing depends on the request and the support level included in your plan.