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YOUR DATA STAYS ON YOUR DEVICE
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AI Health Coach

What should Ido today?

Daygo answers — using your sleep, training, and bloodwork. One AI coach. Plain English. Remembers what worked.

HRV·52msSLEEP·7h 20mLDL·↓18 ptsiOS ONLY·On-device
Daygo
Tue · May 6
Today
Easy day. Protect Thursday.
Easy 30 min run
max HR 148
In bed by 22:30
you said 7h+
Last coffee · 13:00
87mg projected
WhyHRV ↓12%·sleep 6h 50m·RHR +4 bpm

You wear the watch. You log the food. You still don't know if today is the day to push.

Daygo isn't another dashboard. It reads your sleep, your training load, your blood work, and what you told it last week — then answers the only question that matters: what should I do today?

Six moments

The kind of thing your friend with a sports-medicine degree would notice. Without the friend.

01
Coaching
Daygo
Today · 7:42

Skip the intervals.

02
Accountability
This weekMon · Day 2
  • In bed by 22:30
  • No caffeine after 1pm
  • 4 lifts, 2 runs

Sunday. Set the week.

03
Long memory
LDL · mg/dL2024 → 2025
Then
142
Now
142
−18 over six months

−18 LDL. Six months.

04
Real-time
21:04 · Caffeine
87mg
at bedtime
22:30
safe sleep · 06:38

9pm. The fourth coffee.

05
Travel
Travel+8h
LondonSeoul
Bedtime14:00 KST
Morning sun07:00–08:30
Recovery36 hrs

Touch down. Reset.

06
Lab import
Quest results · 14 markersscanned 4.1s
LDL142
HDL58
HbA1c5.4
Vit D38
Ferritin92
TSH1.8
ALT29
AST24
Glucose98
Mg1.7
Na139
K4.1
Cr0.9
ApoB108
LDL142
HDL58
HbA1c5.4
Vit D38
Ferritin92
TSH1.8
ALT29
AST24
Glucose98
Mg1.7
Na139
K4.1
Cr0.9
ApoB108

Photograph the PDF. 14 markers, 4 seconds.

Blood work

Photograph the PDF. We'll do the rest.

Your last lab report is sitting in an email. We'll read every value, color-code against your previous test, and tell you in plain English what changed and whether it matters. ApoB went up. HDL is climbing. HbA1c is finally back in range. That kind of read.

What's changed
Mar 12 → Today
LDL
142 mg/dL
HDL
58 mg/dL
HbA1c
5.4 %
Vitamin D
38 ng/mL
ApoB
92 mg/dL
Ferritin
118 ng/mL
Sleep & recovery

The math you stop doing.

Caffeine half-life. Bedtime cushion. Travel-mode circadian shift. HR zones from your last run. Sleep debt across the week. We do the calculation; you get the call.

A phone glowing on a nightstand at dawn — sleep dashboard
This week
In bed by 22:30 every weekday
🔔 10:00 PM · weekdays
No caffeine after 1pm
🔔 1:00 PM · every day
4 lifts and 2 runs
“You said you'd be in bed by 22:30 — that's slipped twice this week. What got in the way?”
Accountability

Your word for the week. Held to it.

Sunday night you write three things you're holding yourself to. Daygo schedules the reminders. Notices mid-week if you've slipped. Walks you through it on Sunday. Never preachy.

Yours to shape

The dashboard person and the "just tell me" person — both happy.

Long-press anything to remove it. Pin only what you want. Or tell the chat to do it: "set my calorie target to 2,000" — done.

Why Daygo

Built by someone who tracked everything for two years and still didn't know what to do on a Tuesday.

Daygo started after the realization that the missing thing wasn't more data. It was a coach who reads your data and tells you the answer — in plain English, with memory of what worked last month and the discipline to ask about it next week.

We're not an analytics company. We're trying to make a coach worth paying for.

— Marijus, founder
Privacy

Your data stays yours.

On-device by default

Logs, journals, labs live on your phone. Cloud sync is opt-in.

No training, no ads, no tracking

AI calls go to Anthropic with explicit no-training terms. We don't sell, share, or build a profile of you.

Pay or leave

Daygo doesn't make money from your data. Only from people who pay for the app.

Free, for now

Free while it's early.
No card, no catch.

Daygo
Free
Built and run by one person — I'd rather have real users than a paywall right now.
  • AI coaching, with memory
  • Daily plans from your sleep, training, and labs
  • Lab markers — photo + AI parser
  • Pattern detection across logs and labs
  • Running plans that adjust when you ask
Get the app →

Daygo is new and improving every week. Daygo is a wellbeing tool, not medical advice.

Tomorrow morning,you'll know.

Get the app — it's free →

No card needed. iOS only, for now.