Hey guys,
Happy to help. Any SIM card by any GSM carrier can be used
- Tmobile
- ATT
- Bell, Rogers, etc in Canada
- Lyca works great (I think they use tmobile towers)
Each company has different rates for texts and plans.
Phone calls are free to use with Switchbox and will not subtract any $ from any account above. If you use the app, you can trigger outlet1 with a free phone call 100000x and its still free.
** To answer the tmobile question, let me explain really quick. Switchbox comes with $3.34 of credit on your account. Tmobile takes $3.00 away from the balance and converts this to 30x messages. If you check your online account, on the left side of page you will see "30 messages" and on the right side "$0.34). So you are in fact paying for those 30x texts. Nothing is free unfortunately **