I think the answer is that dhamma apps or dhamma resources on the internet via a stationary computer isn't providing significantly more distractions than existed before in the world with books, magazines, cassettes and portable cassette players. Apps on smart phones are just trimming a few ounces off what people might otherwise be carrying around.
People who are inclined toward distractions will find distractions and if they can't they will make them. Look at the nonsense that has happened in the last 2600 years.
Technology has made the dhamma much more accessible to people, to a degree that far outweighs the downsides of internet bickering and idle chatter.
A man on his way home from work on a commuter train can now read a book on meditation. He can clarify something to himself that will help his practice or read something that will inspire his practice. Smartphones make this easier as they are less bulky than books and he doesn't have to remember to take a particular book. If he would rather meditate on the train he can still do so. If he wants to be distracted he can people watch. It all comes down to choice.
In reading the scriptures, there are two kinds of mistakes:
One mistake is to cling to the literal text and miss the inner principles.
The second mistake is to recognize the principles but not apply them to your own mind, so that you waste time and just make them into causes of entanglement.