Why Body Doubling Works for Fitness (And Why No One's Built an App for It)

If you've used body doubling for work, you already know the drill. You book a session, another person shows up on video, you both do your thing, and somehow the presence of a stranger makes you actually start the task you've been avoiding for three hours. It works. There's research behind it, there's a whole community built around it, and for a lot of us with ADHD, it's become a non-negotiable part of being a productive adult.

So here's the question I couldn't stop asking: why doesn't this exist for fitness?

The gap nobody's filling

Body doubling platforms like Focusmate are incredible for desk work. I use Focusmate regularly and it's genuinely changed how I get things done. But when I tried using it for workouts — selecting the "moving" session type and hoping for the best — I felt incredibly awkward.

My partner was coding, doing dishes, or cooking dinner. And there I was, in yoga clothes, having to decide if I would also do desk work or be weird and do a downward dog on camera in front of a stranger. Most times I would choose desk work. While Focusmate tries to match you with someone with the same session type, it is primarily designed for desk work and the audience reflects that.

Why the "just use Focusmate" solution doesn't work

Body doubling works because of a specific psychological mechanism: the presence of another person doing a similar task reduces the activation energy required to start. That last part matters. A similar task. When both people are typing, the parallel activity creates a shared context that makes the accountability feel natural. When one person is exercising and the other is washing dishes, that shared context disappears. You're not doing the same thing anymore. You're just on a video call with a stranger while you work out, which is a different and much weirder experience.

This isn't a criticism of Focusmate — they built a brilliant product for what it's designed to do. The problem is that fitness is a fundamentally different context. You're in workout clothes. You're moving around. You might be sweating, breathing hard, or doing exercises that feel vulnerable. The social norms of a desk-work body doubling session don't translate. You need a space where the default expectation is that both people are exercising.

What actually works (and how I know)

After a lot of Googling I found a Facebook group for people looking for virtual workout buddies. I was rehabbing a shoulder injury and my physical therapist gave me a home exercise program I was supposed to do three times a week. I did once or twice on the weeks I had appointments and skipped it the rest of the time. Sound familiar?

Then I found a partner through a fitness accountability group. We set up video calls three days a week. She did her PT exercises, I did mine. Neither of us was coaching or even really watching the other. We'd say hi, set a timer, do our thing, and check in at the end.

I stuck with that program for two months straight. It was the best I'd ever adhered to a PT program — not because the exercises changed, but because I didn't want to let her down. The social obligation of a real person waiting for me was stronger than any app notification, any guilt, any amount of "discipline."

Then she got busy. Schedules drifted. And I was back to square one, back to doing my exercises the day before my PT appointment and skipping them the rest of the time.

The missing piece

That's why I built MoveWith. It's body doubling specifically for fitness. You book a 25-minute session, get matched with another person who's also exercising, and you both do your workouts together on video. No coaching, no classes, no judgment about what you're doing or how fit you are. Just another human waiting for you to show up on the app.

Both people on the call are exercising. That's the whole point. No mismatches with someone doing dishes. No feeling like the odd one out. Just two people in their living rooms, doing their thing, because the hardest part of exercise was never knowing what to do — it was starting.

If you've ever had a gym buddy and then lost them, you know exactly what I'm talking about. If you use body doubling for work and wish it worked for workouts, this is what you've been looking for.

MoveWith is in beta now. If you want early access, sign up here.