Now in private beta
The running coach
you've always needed.
Finally in your pocket.
Signal combines your training data, recovery metrics, and race calendar into one intelligent coach that knows exactly where you are — and exactly what it takes to get where you're going.
1,200+ runners already on the list
Good recovery. HRV trending up — a quality run is in order. Runna has 8mi easy on the schedule.
Keep effort conversational. If HR drifts above 145, slow down — aerobic development happens below threshold.
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1,200+
Runners on waitlist
6
Platform integrations
4
Wearable devices
Private
Beta access
Works seamlessly with
How it works
Three steps. One daily briefing.
Connect your gear
Link your watch, Strava, and calendar in a one-time setup. Signal pulls everything automatically from that point on — no manual logging.
Signal reads your data
Every night, Signal processes your recovery metrics, training load, upcoming schedule, and race timeline into a complete picture of where you are.
You get your briefing
Wake up to a personalized daily briefing — what your body is telling you, what's on the plan, and exactly what today should look like. Ask your coach anything.
Today
Start every morning knowing exactly where you stand.
Every morning, Signal synthesizes your overnight recovery data — HRV, sleep quality, resting heart rate, sleep stages — into a single, clear picture of what today should look like for your training. No guessing. No generic advice.
The daily briefing covers sleep quality, training readiness, what's on your schedule, and the weather. Your TL;DR snapshot tells you in one sentence whether to push, hold back, or rest. Your body speaks. Signal translates.
Good recovery. HRV trending up — a quality run is in order. Runna has 8mi easy on the schedule.
Keep effort conversational. If HR drifts above 145, slow down — aerobic development happens below threshold.
Aerobic efficiency is building. Three weeks ago, 9:04/mi cost 146bpm — yesterday 138bpm. That 8-beat drop at the same pace is real adaptation. Keep stacking.
Activity
Every run you log deserves more than a number.
Signal reviews each run automatically — pace relative to heart rate, effort versus plan, what the data actually means for your fitness trajectory. Not just statistics. Coaching insights after every session, grounded in context.
A 9-minute mile means something very different at 135bpm than at 165bpm. Signal knows the difference, tracks your trends, and connects individual workouts to the bigger picture of race readiness. You'll always know if you're building or breaking down.
AI Coach
Ask anything.
Get a real answer.
Signal's AI Coach knows your full training history, your recovery data, your race goal, and your schedule. Not generic advice pulled from the internet — specific, personalized coaching based on your actual numbers.
Ask whether you're on track for a sub-1:50 half. Get a race fitness projection with real caveats. Ask what to prioritize this week. Get a concrete answer, not a hedge. Your coach is available at 2am when you're spiraling about taper week. It never tells you to "listen to your body."
Responses are generated from your actual training data
Log
Track everything that moves the needle.
Performance isn't just what happens on the road. Log strength sessions, nutrition, alcohol, and injuries directly in Signal. Every entry gives your coach the context to give you better advice.
HRV dropped overnight? If you logged two beers and a heavy squat session, Signal knows why — and accounts for it in your next briefing. Runners who log the full picture get coaching that reflects the full picture. Your life is part of your training.
Works with Signal
Signal connects to the tools you already use — automatically where possible, with a one-time setup where needed.
Every run triggers an automatic Signal review — pace vs. HR, effort vs. plan, race readiness impact. No manual logging.
Scheduled workouts, TSS targets, and coach-assigned plans synced directly into your daily briefing.
Signal reads your race events and key training dates directly from your calendar — no manual entry needed.
HRV, sleep stages, recovery score, and training load — pulled directly via device APIs into your daily briefing.
Beta runners
What athletes are saying.
“Signal caught my overtraining before I did. My HRV trended down 12 days straight while my coach said 'trust the process.' I backed off, recovered, and PR'd Chicago by 9 minutes.”
Sarah K.
Chicago Marathon · 3:41 → 3:32
“I've had Garmin, Strava, and a running coach for three years. Signal is the first thing that actually connects all of them. My daily briefings feel like talking to someone who's been watching my training for months.”
Marcus T.
Half marathon · Sub-1:45 goal
“The AI Coach at 5am during taper week is genuinely calming. It knows my numbers, gives real answers, and doesn't hedge. I've never had a tool that understood me as an athlete.”
Tom W.
Boston Qualifier attempt · 3:04
“Training for my first marathon. I check Signal before I check my training plan. It tells me which scheduled workouts I should actually do, versus just blindly trust the calendar. That's worth everything.”
Jess R.
First marathon · NYC 2025
Why Signal
Your coach. Your data.
One place.
A hired coach doesn't see your HRV. A training app doesn't know you missed sleep. Signal does both.
Who it's for
Signal isn't for everyone.
It's for you.
Signal is for the runner with a race on the calendar. The one who doesn't just log miles but wants to know what they mean. Who wakes up and wants a real answer to "should I push today?" — not a guess, not a vibe, not a generic training plan. If you take your goals seriously, Signal treats them that way.
From the blog
Training intel.
Get early access
Your next PR starts here.
Signal is in private beta. We're onboarding runners with a goal and a race on the calendar.
1,200+ runners already on the list