You do want to inform your users better on their smartphone but …
… you do not have extra space on your package for a QR-Code?
… your products are already shipped to your customers?
No problem. We can bind any content to any machine readable code. To do so, your consumers scan the EAN/UPC (or any other machine-readable code with your app.
Using this technique you could also provide extra content for service technicians that they encrypt using “the right” application. This additional maintenance content is hidden from the consumer.