As I'm sure many others do, I make use of the mileage tracking on my running shoes through STRAVA, but for the consideration of this group, would it also be worth the effort to include the ability to track mileage on a set of tires for a given road bike, hybrid, MTB, etc.? This is something of a rabbit hole as tire types can wear differently based on rubber compound, average speed, terrain, etc., so it would just be a rough estimate on when to replace your tires.
Similiarly, does anyone think a time-based metric for replacing gear is worthwhile? As my physical therapist reminds me, the foam used in running shoes continuously breaks down over time, regardless of use. So even if it's a pair of "race" shoes that only see but so much activity, a STRAVA reminder that they may be past their prime in 18 months (regardless of current mileage) could be useful. Same logic would apply for bicycle tires.