Social running + AI coach

Never run alone.

Find running partners at your pace, train with an AI coach and run together.

Coming soon to App Store Coming soon to Google Play

Coming to iPhone, Android, Apple Watch and Wear OS.

Tandem Discover screen: cards of compatible runners nearby with a map

How it works

From your first run to your own crew, in three steps

Match by pace and area

Tandem suggests runners compatible with your pace, your goals and your area. Swipe, choose, connect.

Plan and run together

Arrange the run in chat, head out with GPS on and watch your live metrics on your phone or your watch.

Share and grow with your crew

Post the run to the feed, celebrate milestones and get better week after week with your crew.


Features

Everything you need to never run alone

Smart matching

Compatibility computed from pace, goal, focus and area: meet runners it actually makes sense to run with.

Pacer AI coach

Adaptive plans, tailored advice and a natural voice while you run. Chats and plans are generated with Claude by Anthropic.

Live running

GPS tracking and real-time metrics from Apple Watch and Wear OS: heart rate, power, cadence.

Crews

Create or join running groups: group chat and scheduled runs with RSVP, all in one place.

Social feed

Posts with route maps and photos: share your runs and celebrate milestones with people who run like you.

Integrations

Connects to Apple Health and Health Connect, syncs with Strava and brings your music along with Spotify.


Pacer AI

A coach that learns how you run

Pacer reads your runs, your recovery and your goals, and adjusts your plan week after week. In chat it answers like a real coach; while you run it talks to you with a natural voice, at just the right moment.

  • Adaptive training plans, recalibrated on your actual results
  • Coach chat for questions about pacing, recovery and race prep
  • Natural voice while you run: pace, encouragement, strategy
  • Insights on progress, load and consistency, right in your profile
Transparency: Pacer is an artificial intelligence assistant: its content is generated by AI, clearly labelled in the app, and does not constitute medical advice. Learn how we use AI.
Tandem feed with run posts and a banner from Pacer, the AI coach
Tandem profile with weekly stats, streak and progress toward your goal

Tandem Crews screen: list of running groups nearby
Crews

Running is better together

Crews are Tandem's running groups: find the right one for your area and pace, or create your own. Every crew has its own chat and its own calendar of runs.

  • Public or invite-only groups, by area, level and goal
  • Group chat to get organized without leaving the app
  • Scheduled runs with RSVP: you always know who's in
  • Group runs land in the whole crew's feed

Pacer Pro

Free to run together. Pro to go further.

Free

€0 / forever

Everything you need to get started.

  • Match with compatible runners
  • Live running with GPS and metrics
  • Social feed
  • Crews: groups, chat and runs
7-day free trial

Pacer Pro

€7.99 / month

or €53.99/year

  • Unlimited AI coaching with Pacer
  • Adaptive training plans
  • Natural voice while you run
  • Advanced insights on progress and load
  • Advanced matching filters

Prices are indicative; purchases are made in the stores.


FAQ

Frequently asked questions

Do I need an account to use Tandem?

No: you can explore the app in guest mode. Matching, chats and crews require an account, which you can create in seconds with your email.

What happens to my health data?

Data such as heart rate, calories and cadence is read only with your explicit consent, which you can revoke at any time from your system settings. You'll find all the details in the privacy policy.

Can I delete all my data?

Yes. Account deletion is available directly in-app and takes effect immediately: it completely removes all of your data.

Does Pacer replace a doctor or a coach?

No. Pacer is an AI assistant: its suggestions do not constitute medical advice and are no substitute for a professional's assessment. Talk to a doctor before starting an intense training program. More details on the AI transparency page.

Where is my data stored?

Data is hosted on Supabase, with servers in the European Union and the United Kingdom. Specific providers (such as Pacer's AI) are described in the privacy policy.


Coming soon

Your next run won't be a solo one.

Tandem is coming to the App Store and Google Play.

Coming soon to App Store Coming soon to Google Play
Tandem sign-in screen with the Never run alone tagline