It's okay. Would be better if it was possible to look up the special provisions, packing instructions, table of precedence, packing group class test criteria, class collective entry lists, and all other reference material available in the ADR 2017. Then it would be more useful than just a novelty item, and would become a functional go to resource.
Does what I need and is easy to use
Adr dangerous goods
ADR Excellent app
Mobile placard recommendation, briefing, and ERG guide in the palm of your hands