Eight different mobile carriers offer unlimited data plans in Canada, however, they vary in price depending upon the download speed guaranteed to a service. Every single one of these plans has a fixed amount of downloads at a guaranteed speed, before reverting to throttled speeds for the rest of the month. On the cheaper end of the spectrum, Chatr mobile offers a plan between $25-70, although once the proportion of guaranteed speed downloads is used up, it reverts to 64kbps, which is approximately the speed of dial-up-internet. On the more expensive end, the Rogers Mobile plan comes in at between $85-175 but is much faster when it reverts to a throttle speed of 512kbps.