I've created a SharePoint-hosted app, and I want not only Site collection admins to be able to install the app, but also members etc (not visitors).
Is this even possible?
Yes, but the permissions requested by app should not be those which are with admin only. For example, you can't ask for Full Control permissions in app manifest and expect a user with contributor access to install that app as the user himself doesn't have that permission.
Read
is perhaps too low a permission in case of search.
Commented
Feb 9, 2015 at 14:46