HealthAI
HealthAI turns the knowledge of leading experts into personal coaching, one discipline at a time.
Our first coach
Catherine FlockhartCompetitive distance running
How we build
Our engineers specialize in artificial intelligence, and every coach we build follows the same four-stage process.
- 01
Source the expertise
Every coach begins with a body of work from recognized experts in a single discipline: coaching methodology, exercise physiology, and applied sports science. For our first coach, that discipline is distance running.
- 02
Filter for quality
Generic, machine-written content is excluded at the source. Only material that reflects real expertise and current evidence is admitted, so the coach reasons from what practitioners know rather than what the internet repeats.
- 03
Keep it current
The knowledge base is maintained continuously. As the evidence develops, the coach's understanding is updated and kept tightly focused on its discipline.
- 04
Give it a voice
We pair that knowledge with natural voice technology and a fully realized character, with a voice, a face, and a history, so working with the coach feels like a conversation with a person who knows the field deeply.
Our products
A growing roster of expert coaches, beginning with Catherine Flockhart.
Product 01 · RunningAI running coach
Catherine Flockhart
Catherine combines expert running knowledge with the training and recovery data you share. Catherine is not a general-purpose chatbot or a templated plan. Select a tile to learn more.
Catherine is a running specialist.
Catherine draws on a deep library of expert running knowledge and combines it with your own training and recovery data. Catherine has a voice you hear on the phone, a face you see on the site, and a personal history in the sport.
Today's session
Most running apps start from a questionnaire. Catherine starts from the training you have actually done. If you miss a session, the next one is adjusted to account for it rather than doubled up.
Catherine
Running coach · text
Coaching by phone · Accountability plan
On the Accountability plan, Catherine calls twice a day, at times you choose and in your own time zone, and keeps each call brief and focused. A human running coach typically costs $100 to $300 a month and is rarely available between sessions. A running app cannot be called at all.
Catherine
The health portal
Members sign in to the health portal, a secure website with nothing to download.
- Ask Catherine questions in writing, any time.
- Review your complete training history.
- Track your progress on clear, visual dashboards.
- See your weekly performance score.
- Follow your current plan and the goal it is built for.
- Research training methodology and exercise physiology in depth.
Weekly training review
Was the work absorbed?
A-
- Key sessions completed
- 2 of 2
- Finished with a rep in reserve
- 2 of 2
- Even splits on threshold reps
- Within 1.2 s per km
- Easy days held easy
- 4 of 4
- Hill sprints, quality held
- 8 × 8 s
- Recovery between key days
- 48 h
An example week. Catherine grades whether the training was controlled, repeatable, and recovered from, not how tired it left you. The score uses only the training data you share with Catherine.
Training methodology
Inside Catherine's training model.
Nine areas where Catherine individualizes your training. Select one to see the reasoning.
Select a topic
Catherine Flockhart
Who Catherine is for
Catherine is designed for athletes whose improvement now depends on the details: the distribution of intensity across a week, the specificity of each block, and how training is individualized to their physiology. Most running apps stop at generic plans. Catherine starts where they end.
The athletes
- A high school runner chasing a state title or a national qualifying mark, who needs structure that develops speed and aerobic capacity without burning out.
- A former collegiate runner competing post-collegiately or semi-professionally, still improving but no longer surrounded by a coaching staff.
- An athlete building toward national championships, Olympic Trials standards, or international selection, where every training decision carries weight.
- A serious age-group or sub-elite competitor who trains with purpose and wants the reasoning behind every session.
The detail
- Athlete profiling: whether you lean toward a speed or endurance profile, read from your race times across distances, and how that should shape threshold volume, interval design, and the taper.
- Event-specific periodization from 800 meters to the marathon, supporting goal pace from below with aerobic development and from above with speed, then connecting the two in the final weeks.
- Precise intensity control: threshold and sub-threshold work, aerobic intervals, combination sessions, and the rep length and recovery that determine what a workout actually trains.
- Race execution and peaking: pacing, positioning, and tactics, with a taper calibrated to your fiber profile and how you have responded to past blocks.
Catherine coaches from your training data and race results, not from a self-reported label, so the plan reflects your actual level of development. Catherine does not diagnose injuries, and a United States phone number is required.
Catherine · Running coach · Two plans
Both plans are Catherine: the same training plan, the same health portal, and the same coaching in writing. Accountability adds Catherine on the phone. One sign-in, cancel at any time.
Catherine · Data
$30a month
Catherine's full coaching in the health portal. You train, Catherine plans, and you can ask anything in writing.
- A 14-day training plan built from your watch data and rebuilt as you train.
- Ask Catherine anything, any time, in writing. Ask for a change and Catherine updates your plan.
- The reason behind every session.
- Your training history, dashboards, and weekly performance score.
Coaching in writing. No phone calls on this plan.
Catherine · Accountability Includes calls
$200a month
Everything in Data, plus Catherine on the phone to keep you on plan and adjust your week as it happens.
- Everything in Data.
- Two calls a day from Catherine, at times you choose and in your own time zone.
- Call Catherine whenever you need to.
- Your plan changes during the call, not days later.
A human running coach typically costs $100 to $300 a month and is rarely available between sessions.
| What you get | Data$30/mo | Accountability$200/mo |
|---|---|---|
| 14-day training plan built from your watch | ✓ | ✓ |
| Plan rebuilt as you train | ✓ | ✓ |
| Ask Catherine in writing, any time | ✓ | ✓ |
| The reason behind every session | ✓ | ✓ |
| Health portal: history, dashboards, weekly score | ✓ | ✓ |
| Two scheduled calls a day from Catherine | – | ✓ |
| Call Catherine whenever you need to | – | ✓ |
Connect your watch and share a United States phone number to get started.