App Builder
Which website becomes an app?
Any public site over HTTPS works. We read the title, icon and colour so you can skip ahead.
Name your app
Shown under the icon. Under 30 characters looks best.
What users see, e.g. 1.0. Version code is managed for you.
Your app’s permanent ID on Google Play. Lowercase letters, numbers and dots. Cannot change after the first Play upload.
Make it yours
Native features
Everything here can be changed on a rebuild without changing the package name.
Push, offline mode and AdMob are included in Pro. See plans →
For Firebase, upload google-services.json after the build from My Apps.
Review and build
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Building your app…
Build log
Install the APK on any Android phone. Upload the AAB to Google Play. Keep the keystore safe.
Before you build
What you get, who owns it, and how publishing works.
Still stuck? Talk to us or read the docs.
Is ApkZio really free?
Yes. Building, downloading and installing your app costs nothing and you do not need a credit card. The Free plan adds a small ApkZio badge to the splash screen and limits you to three builds a day; Pro removes the badge and unlocks push notifications, AdMob and offline mode.
Can I publish the app on Google Play?
Yes. Every build includes an Android App Bundle (AAB) signed with a keystore you download, which is exactly what the Play Console asks for. Follow the publishing guide in our docs; you will need a Google Play developer account and a privacy policy URL.
What is the difference between APK and AAB?
The APK is a single file you can install directly on any Android phone or share with testers. The AAB is the publishing format Google Play requires; Play generates optimised APKs from it for each device. ApkZio gives you both.
Who owns the keystore and the app?
You do. The signing keystore is generated for your app, offered for download with the first build, and never reused across customers. Keep it safe: Google Play only accepts updates signed with the same key.
Does my website need to be online?
For URL-based apps, yes: the app loads your live site, so content updates instantly without a rebuild. If you upload an HTML or ZIP package instead, the pages are bundled inside the app and work fully offline.
Will the app work offline?
With offline mode enabled, visited pages are cached and shown when the connection drops, with a branded offline screen and a retry button. Pages that have never been opened still need a connection unless you bundle them as HTML.