Is this really Unlimited SMS?
We do not put any limitation on how many messages you send through our Service.
You are only limited by whatever your carriers Fair Policy usage is for your SMS plan, any country's regulations or imposed limits on an Android phones, iMessage or WhatsApp
If you are using our service to send messages through general workflows, reminders, updates, and chatbot responses then you should have no issue at all.
We recommend you send no more than 1 SMS per minute so you remain well inside most carrier/telco safe zones. This is about the speed at which a human would / can send an SMS on their own device.
NOTE: If you exceed your carriers policies, then you will likely get your phone number banned and will have to work with your Telco to get it back, if they let you.