Not exactly. On the Android store you can choose exactly which device to install an application on.
For Apple as far as I know the most you can do is buy the app on desktop and, if the device is configured that way, it will receive the new app. This means it’s limited to new purchases and by the device’s settings.
Ok, but my point was that on Android and iOS it is possible to install apps without touching your phone. This qualifies as remote code execution. You need your credentials for doing this, but google and Apple apparently don't need them.
For Apple as far as I know the most you can do is buy the app on desktop and, if the device is configured that way, it will receive the new app. This means it’s limited to new purchases and by the device’s settings.