Activities
MashON supports cycling, running, and walking. A Mash is an activity you create or join in the app.
About MashON
What is MashON?
MashON is an iPhone and Apple Watch app for cycling, running, and walking together. You can share a live group activity, race a previous recorded activity, or challenge a friend on a route.
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At a glance
The essentials.
Devices
Create or join a Mash on iPhone. Apple Watch can show workout metrics, ghost gaps, route progress, and maps during the activity. See Watch features →
Availability
MashON is available for iPhone and Apple Watch on the App Store. The download is free; MashON Pro adds optional paid features.
Developer
MashON is operated by Leff IT LLC. Find help on the Support page and read its privacy policy.
How people use MashON
Move with a crew or chase your past self.
Live group Mashes
Invite others to a Mash and see participating buddies during the activity. Live locations are shared temporarily with authenticated participants, not kept in MashON’s durable activity database. Read the data details →
Ghost Activities
Use a previously recorded route as the pace to beat. A Ghost Mash can use a suitable saved activity, Apple Fitness or Strava activity, or GPX route. How Ghost Mashes work →
Teams and challenges
Keep a regular crew together with schedules and chat, or set a route challenge for a friend. Explore Teams →
Saved Activities
Save a recorded activity for later, trim its start or end, and restore the original. Cloud Sync is optional and off by default. Explore Saved Activities →
Learn more
Explore the app and its story.
Compare Free and Pro, browse the project history, or try the free pace calculator and run–walk interval planner. These website calculators work in your browser without an account.