Skype again offers their unlimited calling plans starting at $2.99 per month. Get 15% off if you sign up for a 12-month plan and drop it to just $2.54 per month, or a total of $30.48 for the year. This base plan allows for unlimited calls in the US and Canada, but you can sign up for individual countries for $7.99 or $6.79 per month after the discount code. They also offer a plan for 40 countries for $13.99 per month or $11.89 after code. Note: The 15% off only applies when you sign up for a 12-month plan.