Coach · Plan · Fuel

Stop guessing
how hard
to train.

CORE3 builds your training plan, sets your nutrition to match, and rewrites both as your fitness and fatigue shift. One coach that actually keeps up with you.

First 500 members · $99/yr locked for life
500+
Structured workouts
Community
Nutrition database
AI-powered
Adaptive training plans
Fitness · CTL
68
↑ +4 · 42-day avg
Fatigue · ATL
76
↑ +8 · 7 day avg
Form · TSB
−8
Optimal
Ramp · CTL/wk
+5.2
↑ Safe build
Training Readiness AI Adapted
FatiguedOptimalGreyFresh
OptimalBuild phase · high load OK
Weekly Training
W1
W2
W3
W4
W5
W6
310 TSS this week
Power PBs
5 min328W4.2 w/kg
20 min278W3.6 w/kg
60 min241W3.1 w/kg
FTP · 287W · 3.7 w/kg
How it works

One loop. Always running.

Connect your gear once. CORE3 calibrates to your real fitness, then keeps your plan, workouts, and macros current as the data comes in.

STEP 01

Connect

Link Garmin, Wahoo, Zwift, or Ōura once. Every ride, run, and night of sleep shows up on its own. No manual entry, no spreadsheets.

STEP 02

Calibrate

CORE3 reads your numbers (CTL, ATL, TSB, FTP, recovery) and builds a live picture of what you can handle today.

STEP 03

Adapt

Your plan, your sessions, and your macros update as the data comes in. Skip a workout, sleep badly, or peak early and CORE3 adjusts around it.

01 | Agentic AI Coach

A coach that learns how you train.

It builds a picture of you over time, from every ride, every check-in, and every bit of feedback you hand back to it.

  • Knows your fatigue patterns, your race history, and when you actually like to train
  • Reworks your schedule the moment life gets in the way
  • Tells you why it made each call, not just what to do
Trinity
Message Trinity…
02 | Workout Planning

Plans that flex around your life.

Your week never goes to plan. CORE3 reshuffles the load when it falls apart, so you are not rebuilding your schedule by hand every Monday.

  • Fits sessions around the time you actually have
  • Moves the load when you skip a session or cut one short
  • Weighs recovery now against where you need to be on race day
SAT · WEEK 6 OF 16
Mixed Endurance / Tempo
Adapted
Duration
3h 45m
TSS
211
IF
0.75
CTL
74.2
+1.4
ATL
81.5
+6.3
FORM
−7.3
03 | Nutrition Tracker

Fuel that fits your training blocks.

Your macros move with your load. Hard weeks get more carbs, recovery weeks lean on protein, and race week shifts into a carb load on its own.

  • Tomorrow's session sets today's targets
  • Carb loading built into the days before your event
  • A nudge to refuel after the sessions that need it
TODAY · FEB 20
Nutrition Overview
Race in 2 days
Calories
Carbs
Protein
Fat
Fibre
Targets raised

~1212 kcal of training today lifts your macro goals to match.

Integrations

Everything you ride, connected.

Connect the devices and apps you already use. Your data comes in on its own, no manual entry.

More integrations on the way. Want one? Email info@coreiii.com

Why CORE3

Training tech without the guesswork.

No badges, no fake streaks. Just the models that actually predict performance, in an app that respects your data and your time.

Real sports science

CTL, ATL, TSB, FTP, Critical Power, W′. The same load-and-fatigue models good coaches use, run on your own data and updated every day.

Your data, your call

Encrypted in transit and at rest. We don’t sell it or mine it. Export everything or delete your account in a tap, whenever you want.

Explains every call

No black box. When CORE3 moves a session or changes your macros, it shows you the reasoning behind it.

Founding members first

Get in before public launch, lock in founding member pricing for good, and help decide what we build next.

We're building the coach we always wanted for ourselves: one that's honest about your data and never leaves you guessing what to do next.

— The CORE3 team
Pricing

Founders pay $99 a year. For life.

The first 500 waitlist members lock in everything CORE3 will ever ship for $99 a year, and keep that rate for good even as the standard price climbs.

First 500 members only

Founder Pass

Full access to every CORE3 feature, present and future. One price, locked for life.

$99/year$600/yr at standard Max rates, so you save 83%
Free for 30 days · cancel anytime · rate locked for life
  • Everything in Max, for life
  • The most Trinity usage we offer, 2.5× Pro
  • Race day strategy plus injury risk analysis
  • Every device integration and connection
  • Founding price locked for life, and a founding member badge
  • A direct line to shape the roadmap
After launch, the standard plans
Get startedFree
$0

A real coach from day one. No card, ever.

Coach engine
Google Gemini
Training plan
A week at a time
Coach memory
Not included
Race day strategy
Not included
Course & elevation
Not included
Analytics history
30 days
Priority traffic
Not included
Injury risk analysis
Not included
Trinity usage
Everyday coaching
No card required
Most popularPro
$20/mo

For athletes training week in, week out.

Coach engine
Gemini, Claude, GPT, Grok or Kimi
Training plan
Periodised multi-week blocks
Coach memory
Remembers every session
Race day strategy
Carbs, fluid and sodium
Course & elevation
On every event
Analytics history
Full history
Priority traffic
At peak times
Injury risk analysis
Not included
Trinity usage
4× Free, every day
Every new account gets 30 free days of Pro
For racersMax
$50/mo

For the block that decides your season.

Coach engine
Gemini, Claude, GPT, Grok or Kimi
Training plan
Periodised multi-week blocks
Coach memory
Remembers every session
Race day strategy
Carbs, fluid and sodium
Course & elevation
On every event
Analytics history
Full history
Priority traffic
At peak times
Injury risk analysis
Flagged before it costs you a race
Trinity usage
2.5× Pro, and triple the daily burst
Upgrade any time, including during your free 30 days

Every plan includes an AI debrief on every ride you sync, unlimited device connections, and your full training calendar. Trinity usage is measured daily and weekly, and higher plans raise your limits.

Founding members keep $99 a year for life, even as these prices rise.

FAQ

Questions & Answers.

Everything you need to know before joining the waitlist.

CORE3 is an AI performance coach that brings your training, nutrition, and recovery into one place. It learns from your workouts, meals, sleep, and readiness, then adjusts your plan so you're always training at the right intensity.

CORE3 works with Garmin, Wahoo, Zwift, and Oura out of the box, and we're adding more based on what people ask for. If your device syncs with any of these, your data comes in automatically.

It reads your fitness numbers (CTL, ATL, TSB) alongside what you eat and how you recover. From there it works out what you can handle right now and adjusts your upcoming sessions, macro targets, and rest days to match.

We're starting with cycling because the data is richest there: power meters, structured workouts, the lot. The engine itself isn't tied to one sport, and running and triathlon support are next on the roadmap.

The first 500 waitlist members get the Founder Pass: full access to every CORE3 feature, present and future, for $99 a year. That rate is locked for life, even as we add features and the standard plans (Pro at $20 a month, Max at $50 a month) go up. Once the 500 spots are gone, it’s gone.

Your data is encrypted at rest and in transit, and we only use it to coach you. We never sell it, and you can export or delete it whenever you want.

Founding members

Be first
in line.

CORE3 isn’t public yet. Grab your spot and lock in founding member pricing before we open the doors.

Founding pricing · locked for lifeEarly access · before public launch
Syncs with the gear you already ride
Garmin·Wahoo·Zwift·Ōura