Yes you can cancel at any time. The $20 is guaranteed for 2 years that will go up to $25 after that if the rates don't change. It also can be used for a hotspot but only 1 device at at time can be attached. If you get the + plan you can use the hotspot with multiple devices at once."With no contract" Does that mean you can drop it at any time in those 25 months with no penalty?