An AI coworker
for personal
trainers.
Harlen brings their training, wearable data and check-ins together, so you can see what needs your attention before the next session.
Catch up before
the next session.
See what changed for a client, read their latest check-in, and ask Harlen about their history. It’s all here when you need it.
Jamie Reed
Jamie reported right-knee soreness after squats. Their latest check-in also mentions a late flight, with 6.2 hours of sleep and HRV below their recent average. Ask how their knee feels before setting today’s loads.
Vitals · 14 days
Compared with the last 7 daysHRV
Latest 54 ms14 daysNutrition · 2,400 kcal
A full program, built around each client.
Harlen uses their history, wearable data, and your programming guidance to draft the days, exercises, and weekly progression. You review it before assigning.
Running + strength
- Length
- 4 weeks
- Strength
- 2 days / week
| Exercise | Sets | Reps | WK 1 | WK 2 | WK 3 | WK 4 |
|---|---|---|---|---|---|---|
| Block AComplete A1, then A2. Rest 90 seconds between rounds. | ||||||
| A1Dumbbell Romanian deadlift | 3 | 8 | RPE 6 | RPE 6.5 | RPE 7 | RPE 5 |
Dumbbell Romanian deadlift · Coaching instructions Lower for 3 seconds, keep the dumbbells close, and finish each rep with control. Choose the load for the prescribed effort each week. Coach-added YouTube demonstration · Example attachment | ||||||
| A2Chest-supported row | 3 | 10 | RPE 6 | RPE 6.5 | RPE 7 | RPE 5 |
Chest-supported row · Coaching instructions Keep the chest supported. Pause at the top and lower under control. Coach-added YouTube demonstration · Example attachment | ||||||
Built using Jamie’s training history, latest check-in, and your studio’s programming guide.
A place in your
everyday coaching.
Your clients check in from their phones.
You pick up the conversation from your workspace.
- 01 / Connect
Bring your clients in.
At launch, clients will connect their wearables through the free Harlen iOS app and share how they’re doing.
- 02 / Catch up
Review each client.
Review their data alongside check-ins, training records, and the notes you’ve kept.
- 03 / Coach
Take it into the session.
Ask follow-up questions, review the plan, and decide what comes next for that client.
FAQ
Talk to usWho is Harlen for?
Harlen is built for performance coaches, personal trainers, and training studios who want to keep up with their clients’ training, check-ins, and progress between sessions.
How do my clients use it?
At launch, coaches will pay for a subscription and their clients will use the free Harlen iOS app to connect their wearables and check in. You will manage their information and work with Harlen in your browser.
Can Harlen create programs for my clients?
Yes. When you ask, Harlen drafts a program using the client’s history, previous programs, preferences, and wearable data. It can also reference your programming documents in the Library. You review and refine the draft before assigning it.
Can I include my own coaching instructions?
Yes. Add your programming approach to the Library, then include exercise instructions and YouTube videos in the client’s workouts.
Can I see more of the product?
Yes. Harlen has not publicly launched yet. Book a demo to meet the founders and explore the workspace together.
Get to know Harlen.
Meet the founders, explore the workspace,
and talk through how you coach.