The disclosed technology relates generally to systems for measuring the frequency and duration of an individual's use of an assistive device for mobility, such as a cane, in day-to-day life at home. In certain embodiments, the system is a stand-alone unit that does not require the monitored individual to wear any special sensors or use any special assistive devices. Further, in certain embodiments, the system does not require the use of visual-light images or video. The systems and methods, in certain embodiments, gather day-to-day metrics of frequency and duration of assistive-device use and may be used to monitor changes over time of the use of an assistive device by an individual for ambulation.