Let's assume I have a main profile and a new one. In the main profile there is an app called X. I have now also downloaded this app in the new profile, but separately, i.e. installed the APK from the Vanadium browser. Now the app in the main profile should not be aware of the app in the new profile (and vice versa). I have understood this up to this point, as there was a similar question here before.
However, I am now wondering what this looks like if you “transfer” the app from the main profile when creating a new profile (there is such an option). Would the new profile then know that this app was already installed on the phone?
The app is about registering an account on a platform. Normally, multiple accounts are not allowed, but you can get around this if you have several phones.
Do apps in other profiles get inform. from the same apps in the main profile?
Oh and shortcodes (I don't know about the calling itself) in the number field in the phone are not possible in the new profile, even if calling/SMS is activated in the settings when creating a profile.
FrankPP from self experience, when app installed in second profile from the owner's profile the app's data is not transferred - at least that is what i see. so i assume the app in second profile doed not communicate with the original app from owner profile.
in general it is better to try it out yourself and see
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Assuming you install an app from the same source, I'm pretty sure the app itself (and not user data) is shared across all profiles. You should never have two instances of the same app (again, assuming the same source). Apps have app IDs to differentiate between them. App data is never shared across user profiles. Please correct me if I am wrong.
Now whether there is a difference between installing an app from your main profile into a secondary one vs downloading and installing it directly in the profile, I don't know. There shouldn't be.
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FrankPP The app in the main profile is "not aware" of the app in the secondary user profile. App data is not shared between profiles only the app itself is shared between profiles. The OS is aware that an app is installed on the phone and no matter what profile you're in. The underlying OS knows all apps in all profiles since apps are installed system-wide.
To answer your question more directly: If you create an account using the app in one profile you can create a different account using the app in a different profile since it'd look like you're using 2 different devices.
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Don't know if it is exactly what you've meant, but for apps (if coded to do so) can communicate over localhost and therefore might know if there's another instance of the app.
Take a look at InterProfileSharing (available on accrescent)