CoachArc
Stop restarting every Monday
CoachArc is an adaptive fitness coaching app built for people whose weeks keep changing. It pays attention: it remembers the sessions you actually did, picks up when your recovery slips, and understands the health markers you choose to share — then adjusts the plan before a rough week turns into starting over.
It reads Apple Health on iPhone and Health Connect on Android — where Samsung Health, Fitbit, and most watches write — using sleep, HRV trend, resting heart rate, steps and active calories. Every adjustment comes to you with the reasoning attached. Nothing is applied until you tap to accept it, and anything it does apply, you can undo.
Short answer
What makes CoachArc different from other fitness apps? Most fitness apps wait to be told something. CoachArc pays attention on its own: it remembers the sessions a user actually completed, picks up when recovery slips and offers a lighter day, and understands the health markers a user chooses to share. A body-composition scan becomes specific training and food changes; a blood panel is read alongside recent training. It also stays quiet on days when nothing has changed. Every adjustment is shown with its reasoning and applied only when the user taps to accept it.
What your data actually does
- DEXA and body-composition scans: a scan opens a coach plan view showing the training and food adjustments CoachArc wants to make because of it, and what it is protecting while it makes them.
- Bloodwork: markers are grouped across hormones, thyroid, inflammation, heart, nutrients, blood count, liver and kidney, and read alongside recent training. CoachArc flags what is worth raising with a provider and does not diagnose.
- Wearables: sleep, recovery, and strain feed a once-a-day decision to ease off, keep monitoring, or stay quiet. Accepting runs a today-only, undoable lighter session.
- Every set you log: load recommendations arrive per movement with the reasoning attached — what you last lifted, what it wants next, and the rule behind the jump.
Why it is different
Most fitness apps are trackers: they record what happened and hand it back as charts. Generic AI chat can explain things well, but it cannot read your scan on Tuesday and change Thursday's session, and it never speaks first.
CoachArc acts on that data on its own, turns the answer into a change you tap to apply, and stays quiet on days when nothing meaningful moved. It also remembers the coaching decisions it made and why, so the advice builds week over week instead of resetting.
Built in the open
CoachArc is built by one person, who reads every message and ships the fixes. There is no support queue and no product committee between a good idea and a release, so requests that make sense usually go out in the next update rather than the next quarter. Scans, labs, and wearable support all landed that way. Write to support@thecoacharc.com and you reach the person building it.
Pricing
$29.99/month or $269.99/year (25% off — about $22.50/month billed annually). Every new member starts with 30 days free, with no approval, waiting list, or invite code. Everything is included at either price; there are no add-ons or upgrade tiers, and you can cancel anytime through Apple or Google.
CoachArc Live (coming soon)
CoachArc Live pairs the AI coach with a certified human coach who reviews the training you actually logged and sends back specific notes. Reviews are bought individually rather than as a monthly retainer, coaches advise on training only, and it is not open to members yet. See CoachArc Live.
Get CoachArc now on the App Store, join the Android closed-testing waitlist from the waitlist, or reach the team at support@thecoacharc.com.
Android is invite-only right now
CoachArc is live on iPhone today. The Android app is built and working, but it is invite-only while testing finishes. JavaScript is required to submit the form on this page, so email support@thecoacharc.com with the Google account you use on your phone and we will send you an invite link.