TraitWare is supported on both iOS and Android, Yes. You can download the TraitWare authentication app with iOS (10.0+) and Android (6.0+).
Does my 30-day trial period start when I initially sign up for my TraitWare account, or do I get 30 days for each customer I add?
Your 30-day TraitWare account trial starts when you sign up for your account. Your account customers are all associated with the initial account signup, and therefore will not be given their own 30-day trials.