Talking about apps and their efficiency, this is a very tricky question: what’s the right size for a notification? Is it right to have a limit? What is this limit?
You have to be very carefull when you decide to use a notification, push or contextualized, for your communication campaign. First pay attention to the content you want to share and then how you want to share it. Concerning this aspect we are going to analyze the issue about the proper size of the text shared. A notification has a great power, it offers an important opportunity to every app owner. But you have to use it very carefully. Daily a mobile user receive an update notification from all his apps. That’s why it is important don’t be too invasive, your purpose is to win the competition with all the other notifications, yours has to be read.
Every user has the power to turn off any authorization to receive notifications, and if you want to communicate with him you have to avoid it. So don’t be pushy.