Treadwear

It's pretty simple—every time you run, walk, hike, moonwalk, or whatever you do in your shoes, add the distance of your workout to your shoes and Treadwear will let you know when they need to be replaced.
Prevent injuries. Foster footwear mindfulness. Keep your kicks fresh.

Standard Features
• Auto-magically import mileage from your Health workouts (most popular workout tracking apps add data to Health, so you're probably covered).
• Add workouts manually by filling out a form [yawn]. It's easy tho.
• Get notifications about new Health workouts so you never forget to add your mileage or check on your shoes' inevitable decay.
• The very fancy S h o e R e t i r e m e n t P r e d i c t o r estimates when your shoes will wear out so you can add a retail therapy event to your calendar.
• Reminisce about the good times by viewing your shoe's full workout history.
Do more with Treadwear Unlimited!
• Add mileage with EXACTLY ZERO TAPS by designating a pair of shoes as the default for runs, walks, or hikes.
• Your Home Screen is as personal as your shoe size, so you can pick an app icon that best matches your personal aesthetic.
• Shoe Freshness countdown tells you when your recently-worn shoes have a spring in their step.
• Import a perfect shot of your shoes from the Internet—no camera required.

Think Treadwear needs to do something else? Let me know!