We used four of these apps throughout our stay in the Canadian Rockies. It is very well done, super informative and has really great information as well as anecdotes. I would recommend previewing the major points to get a sense of what you may want to see in order to plan your visit. I would also investigate how to hook up the Bluetooth feature of your car prior to starting off as it can be a little tricky. Overall an excellent app and I would highly recommend it!
Britfrau about Banff Lake Louise Yoho GyPSy, v1.2