Your tracker scores you. Then changes nothing.
A red recovery ring with the same workout still on the calendar isn't coaching — it's a weather report. Knowing you're tired was never the hard part.
Missing — someone who decides what to do about it
An AI coach that reads your watch data and tells you what it actually means.
In beta now · founding access opens in waves · first 1,000 places only
Stacked, they run £40+/month. Kiero is one app — £8.99/month, locked, for founders.
Run 6×3min @ 166–176 bpm · 90s jog
Readiness
Moderate
Train, hold back a little
Load
0.70 ACWR
Today's intervals look risky on this recovery. Swap to an easy 6k — they move to Thursday.
Why: HRV ↓12% · 2 nights under 6:30 · your downgrade rule
VO₂ Intervals
6×3min · planned
Easy 6k
Z2 · today
Live now




Coming: Apple Health, Google Fit, Strava, Suunto, Fitbit, CorosNew watches arrive via a single wearable API. Founding members get every new one first.
The problem
A red recovery ring with the same workout still on the calendar isn't coaching — it's a weather report. Knowing you're tired was never the hard part.
Missing — someone who decides what to do about it
The plan doesn't know your Fridays always fail, your sleep slides before hard weeks, or that you respond better to volume than intensity. So it breaks — and takes your momentum with it.
Missing — a plan that learns who it's coaching
Streak shame burns people out. Endless flexibility dissolves the plan entirely. A real coach does neither — they hold the standard and find the way you'll actually meet it.
Missing — accountability that adapts without going soft
Sound familiar?
The fix is one clear call every morning — founding access from £8.99, locked for life.
Inside Kiero
Everything your watch records, turned into a single clear decision each morning — and the whole picture when you want it.
Today’s VO₂ intervals look risky on this recovery. Swap to an easy 6k — intervals move to Thursday, when you can hit them properly.
Why: HRV ↓12% · 2 nights under 6.5h · your downgrade rule
The morning brief leads with what to do — and the "why" underneath: HRV down, sleep short, load high. No raw numbers to decode.
Readiness, load and sleep as three rings — the same recovery markers a good coach watches, read in a second.
Sessions move, get covered, or slot back in. A tennis match can credit a run. You're measured on the week.
The whole picture · last 30 days
7-day avg
+2.1 in 90d
7-day avg
−2 trending
+1 adapting
optimal
01 · Connect your watch
Garmin syncs on its own — runs, lifts, sleep, HRV, resting heart rate. No manual logging.
02 · Kiero reads your recovery
Each morning it weighs your readiness, training load and how the week is actually going against your plan.
03 · You get one clear call
Push, hold or back off — today's session, decided, with the reasons. Move it within the week and it still counts.
The honest comparison
Against the apps runners actually stack on their watch — full feature for feature, at mid-2026 US prices.
Kiero. founder rate | Runna £15.99/mo | Strava £8.99/mo | MyFitnessPal £15.99/mo | Hevy Pro £2.99/mo | |
|---|---|---|---|---|---|
| AI coach + morning brief | ✓ | ◐ | ◐ | — | ◐ |
| Readiness score, explained | ✓ | — | — | — | — |
| Training-load monitoring | ✓ | ◐ | ✓ | — | ◐ |
| Race predictions | ✓ | ✓ | ✓ | — | — |
| Adaptive training plan | ✓ | ✓ | — | — | — |
| Run analytics + GPS maps | ✓ | ◐ | ✓ | — | — |
| Gym / strength logging | ✓ | ◐ | ◐ | ◐ | ✓ |
| Nutrition + macro targets | ✓ | — | — | ✓ | — |
| Food label scanning | ✓ | — | — | ✓ | — |
| Sleep tracking | ✓ | — | — | ◐ | — |
| Works with Garmin | ✓ | ✓ | ✓ | ✓ | — |
| Genuinely best at | All of it in one place — with the why | Structured race training plans | The social side of sport | The biggest food database | Clean, cheap gym logging |
✓ full · ◐ partial · — not offered · monthly US prices, mid-2026
Founding membership · first 1,000 only
one payment · your first 3 months at the founder rate
then £8.99/month — locked for life
price at launch: £14.99/month
What your payment secures
A founding place — one of 1,000. Your spot in the access queue, the founder rate for life, and first try of everything new.
Full refund, no questions — any time before your access opens, and for 30 days after.
Or join the free waitlist — no pressure, founders just go first.
How access rolls out
Today
You join as a founding member. Your place in the first thousand is secured — in join order.
Waves
Access opens in small waves so syncing and coaching stay solid. Founders go strictly first, in join order.
Your clock
Your 3 months start the day you get access — not the day you pay.
“I built Kiero because my watch knew everything about my training except what to do next. So I taught it to coach.”
It's in beta. That's not the fine print — that's why founding membership exists.
Early access
Join the waitlist — it's free, and you'll follow the build as it happens.
FAQ
Because founding places are limited — the first thousand, in join order, at the founder rate for life. Paying now secures yours. And it's fully refundable: any time before your access opens, and for 30 days after.
In waves, in join order, founders first. You'll get an email with your wave date — and your included months only start counting the day you're actually in.
Garmin today. Apple Health, Google Fit, Strava, Suunto, Fitbit and Coros come next via a single wearable API — founding members get each one first.
Kiero is a web app you install from the browser: open the link, add to home screen, done. It works on iPhone and Android, and updates ship instantly — no store review, no waiting.
Encrypted in transit and at rest, never sold, never used for ads. You can export or delete everything — today by email, in-app soon. See the privacy page for the plain-English version.
Within the refund window, you get your money back. Beyond it, remaining founding time is refunded pro-rata and your data stays exportable. Written down here because you should ask.
They show numbers or sell plans. Kiero is the explanation layer: why readiness moved, whether your load is safe, what today should be — across running, gym, sleep and food.
Your founder rate holds for as long as you stay subscribed, regardless of future prices. If you cancel and come back later, the standard price applies.