every
thing
connects.
Start
Anthracite now
Good morning, Mia.
Sleep up 12 min · mood steady · one new insight.

every
thing
connects.

See what's actually shaping you.
Anthracite reads your habits, food, money, and movement together. No streaks, no goal weights, no nudges toward a body you don't have. Just the math you're already doing, sharper.
Join the waitlist How it works
iOS 17 or later. Your data stays on your device.
Four streams · one picture

Your habits, food,
money, and movement
read together.

Most apps look at one thing. Anthracite watches the four streams that actually shape your day, and surfaces the connections you'd never spot alone.

Habits
The small things you choose to do, every day.
Streaks · completions · timing
Nutrition
What you eat, what's in it, when you ate it.
Meals · macros · sugar · hydration
Finance
Where your money goes, and when it slips.
Spending · categories · cadence
Activity
Workouts, walks, sleep, recovery — everything your body did.
Steps · sessions · HRV · sleep
Look inside

How a pattern gets found.

No AI hand-waving. Each insight is a real statistical operation, run on your device, with controls you can audit.

01
Ingest
Apple Health and your connected apps are pulled into a single, deduplicated timeline. Workouts logged in two places don't get counted twice.
02
Correlate
For every pair of streams, the engine computes Pearson and Spearman coefficients across rolling windows. Only correlations above significance threshold survive.
03
Control
Each candidate pattern is checked against confounders — day of week, payday, travel, weather. Patterns that disappear after controlling are discarded.
04
Tell
Surviving patterns are translated into plain language with their numbers shown. You see the conclusion, the data behind it, and the controls applied.
We don't tell you what to do.
We tell you what you're already doing, and what it's costing you.
A N T H R A C I T E
Sample insights

The kind of thing
Anthracite will tell you.

Cross-stream correlations from the four things you already track. Plain language, real numbers, the experiment to try next.

Sleep × Spend
94%
Short nights cost you $17 the next day.
Under 6h
$87
Over 7h
$53
Caffeine × Deep sleep
88%
Coffee after 2 pm = −22 min deep sleep.
Cutoff at 2 pm
1h 28m
Coffee at 4 pm
1h 06m
Steps × Mood
82%
Your mood cliff is 7,300 steps.
Below 7.3k
6.0
Above 7.3k
7.8
On your device. Period.

We never see
your data.

Most health apps quietly upload your numbers to train recommendation systems you didn't ask for. Anthracite doesn't. The math happens on your phone. The data never leaves it. That's how it has to work for the engine to deserve your trust.

On-device math. Every correlation is computed locally. We don't ship your numbers to a server to think about them.
Apple Health is the source of truth. One canonical timeline means we never double-count the same workout that shows up in two apps.
Local-only is a real option. Sign in if you want sync across devices. Don't, if you don't. Both are first-class choices.
No training on you. We don't use your data to train ML models, ours or anyone else's. The engine ships fixed; it doesn't get smarter by reading you.
Compared

Anthracite versus
the alternative.

Most health apps share a model. We don't run it.

Most health apps
Anthracite
Raw numbers
Softened, gamified
Shown as-is
Streaks & goals
Core mechanic
Don't exist
Data on servers
Uploaded by default
Stays on device
ML training on you
Usually yes
Never
Cross-stream patterns
Single-domain
Four streams together
Local-only mode
Rare or hidden
First-class option
Pricing

No ads. No add-ons.
No surveillance.

Two tiers. The free one is actually useful. The paid one unlocks every integration. That's it.

Free
$0 forever
One connected stream
Within-stream patterns
Apple Health sync
Local-only mode
Anthracite Plus
$15 per month · or $89 a year
All four streams, every integration
Cross-stream correlations
The full pattern library
Weekly recap and exports
We don't run free trials, dark patterns, or in-app upsells beyond Plus.
If a price ever changes, you keep the old one for as long as you stay subscribed.
Questions

Things people ask first.

Do I need every stream connected for this to work?
No. Anthracite works with whatever you have. More streams mean more correlations, but the engine is honest about what it can and can't say. With one stream connected, you'll see within-stream patterns. With two or more, cross-stream insights start to appear after about 14 days of data.
What apps does it read from?
Anything that writes to Apple Health (sleep, workouts, heart rate, nutrition, recovery), plus direct integrations with Strava, Garmin, MyFitnessPal, Cronometer, YNAB, Monarch, and a handful of habit-trackers. The full list is in the app under Settings → Sources.
Is this a medical app?
No. Anthracite is a correlations engine. It shows mathematical relationships between things you track. It is not a doctor, a therapist, or a diagnosis. If a pattern raises concern, talk to a clinician — they have context Anthracite doesn't.
I've struggled with disordered eating. Should I use this?
Probably not. Anthracite shows unfiltered numbers — no softening, no streaks. For people with a history of restrictive tracking or obsessive metrics, that format can reinforce rigid thinking. We say so explicitly during setup. If you're in recovery, this isn't the right tool.
How much does it cost?
Free to start with one connected stream. Anthracite Plus is $15/month or $89/year and unlocks all integrations, cross-stream insights, and the full pattern library. No ads, no in-app purchases beyond Plus.
What about Android?
Not yet. Anthracite is iOS-only at launch because HealthKit gives us a unified source of truth across most consumer health apps. Android support is on the roadmap once a comparable foundation is in place.
Shipping

What's coming.

Anthracite ships every two weeks. Here's the next four cycles.

Now
iOS launch · Apple Health, Strava, Garmin, MyFitnessPal, YNAB
● Live
Next cycle
Cycle-sync correlations · alcohol & HRV pattern · Cronometer integration
2 weeks
June
Monarch & Copilot finance integrations · weekly recap exports
~ 6 weeks
July
Android beta · Health Connect integration
~ 10 weeks
Later
Open API for self-quantified data sources · Web companion
researching
Origin

Why this exists.

A

I spent five years tracking everything. Sleep, workouts, every meal, every dollar. The data was there. The patterns weren't.

Every app I tried showed me one stream at a time. Sleep apps showed sleep. Food apps showed food. Finance apps showed spend. None of them looked at the four together. None of them told me that my $80 takeout nights cost me an hour of deep sleep, or that my best work weeks all started with morning sun.

Anthracite is the tool I wanted, built honestly. No streaks, no goal weights, no models trained on me. Just the math, on my device, telling me what I was already doing.

Alex Vidal · Founder, building Anthracite from Mexico City

Read your life,
connected.

Pick your stack, bring your data, see what's actually shaping you. Setup takes about three minutes. The first insight arrives in fourteen days.

Join the waitlist Read the FAQ