Tokens are what you need in order to send SMS messages.
The amount of tokens it takes per SMS depends on the destination you're sending it to.
You get some free tokens when you sign up, but after the you have to buy tokens up-front.
Tokens are charged based on the destination country of the recipient, i.e. where the mobile phone provider is based. If someone is travelling from London to the US, but is using their British handset while they are there, the amount of tokens charged to SMS them will be governed by the UK price.
How to calculate SMSes costs
SMS's are charged at 85c per token. You can find is a calculator at top of the Top up page to find out how many tokens are used per SMS for different destinations.
The maximum length of an SMS is 160 characters. If your SMS message is more than that characters, it may be sent over two or more messages and you will be charged per message. Special characters can take up more than a standard character.
If your SMSes are taking too many tokens and you don't know why, remember:
how many characters variables take up depend entirely on their length at the time of sending. For e.g., the variable called $first_name may have the value Max. It will take less characters than Bartholomew.
special characters, such as emojis, escape characters and unicode symbols can take much more than one character.
Read more on SMS lengths here.
Topping up Tokens is easy, simply go to Top up and purchase your required Tokens.