I bought an i-Fit plug-in chip to get some more exciting and challenging routines for my Nordic Track cross-trainer. You can only follow the regime with further info from the web-site. After wasting nearly an hour in 2 attempts (it is a really hard site to use), it seems that this is available only if I sign up to subscription-based service - not something that was explained anywhere when I bought it. The chip was under £20 and that is the only reason I haven't bothered to go to the trouble of demanding a refund. The cross-trainer is very good but i-Fit is a rip-off. Do not buy.