Here you can find answers to frequently asked questions
Yes, you don't have to store all the images in the app,
you can also save them online to a server,
or integrate them into your app from a web page.
But remember that you always need an internet connection to load all the pictures.
No, you can't send push notifications. This feature is now not available in App Inventor or Thunkable.
Appy Builder has a new experimental feature where it's possible.
The reason why this is currently not possible is because app inventor or thunkable apps can't run in the background.
BUT, you can use a extension from Taifun to send a simple notification to your device.
10 mb(megabyte) is the current limit for App Inventor / Thunkable apps.
No, because the webview component is not a full browser.
But you can download files from the internet with my example snippet here.
No, that's not possible but you can look here how you can create a animation.
I have created an example in "snippets".
Or you can use the webview component and set the url to the file.
The file must be stored on a server or web page.
You can make as many screens as you want.
If you want to make more than 10 screens comes only one indication that it's possible that your app will not work later.
The only limit there is the size of your app in mb (max.10 megabyte).
Yes, you can also make menus as it has almost any other android app.
Take a look to my examples here.
There are some examples with menus for download available.