Level up your life
You, compared to you. In the chapter of life you're actually in.
Eravyr turns the signals you already generate — steps, sleep, heart-rate variability, and the things you choose to log — into a small set of legible stats. Those stats are scored against your own recent normal. Not a population average. Not a stranger's targets. Not the person you were three life-chapters ago.
Fair warning, delivered up front: this is a small private beta. Three accounts exist today, and one of them is married to the founder. There is no crowd here yet — just a working app and a person who answers his own email.
The core idea
The average person is a fiction. You are not.
Six thousand steps is a triumphant day for one person and a quiet Tuesday for another. Seven hours of sleep is plenty for you and rough for your neighbor. A population average can tell you where you sit in a crowd. It cannot tell you the one thing you actually wanted to know: does today look like me?
So Eravyr doesn't ask the crowd. For every signal you share, it learns your own typical range from your own history, then reads today as below your range, inside it, or above it. That's the whole trick, and it's the only comparison that survives contact with a real life.
Chapters — because life doesn't hold still
New job. New medication. A training block. A move. A stretch you'd rather not elaborate on. Your normal changes when your life changes — but most trackers keep averaging the old you into the new you and call the smear a baseline.
So you declare a new chapter
Eravyr re-learns your normal for that chapter, easing over from what it already knows while the new normal warms up. Your old chapters stay in your history. The gauges track the one you're living in.
Per-chapter personal baselining is the piece we filed a provisional patent on in June 2026. It is also, as far as we can tell, just the correct way to do this.
Three kinds of honesty
Every tile tells you where its number came from.
A self-report should never be dressed up as a measurement. So each stat on your sheet wears its provenance out loud, in three tiers.
Vitality · Strength · Calm
Read from device data you've connected — activity, sleep, heart-rate variability — and scored against your own range. If the data isn't there, the tile says so.
Clarity · Connection
From your weekly check-in. These are your words about your week, labeled as yours. No sensor is being implied. No sensor exists for "did I feel like myself."
Spark · your own tiles
Playful on purpose. Name anything you want on your sheet, rate it when you feel like it. Expressive tiles never pretend to be measurements and never move the measured ones.
We went looking for another app that labels its numbers this way and didn't find one. Which struck us as a strange gap to leave lying around.
Warming up
Give Eravyr two weeks. It's just learning your normal.
Until a signal has enough of your own readings to know your range, its gauge reads "warming up" — not a placeholder number, not a confident guess, not a greyed-out shrug. Every app in this category needs time to learn you. Most of them hide that fact in a support article. We put it on the tile, in the first person, where you can see it.
Illustration of a brand-new sheet. There are no numbers in it because at that point there are no honest numbers to show.
"Warming up" isn't a verdict. It's your app politely declining to invent you.
The same restraint applies afterward. Eravyr won't bark at you, rank you against strangers, or hand you a daily grade dressed as a diagnosis. And when a gauge does have something to say, it says it as a suggestion, in words. Please don't stare at a lone number like it owes you money — a single day is weather, and your sheet is about season.
Privacy, stated precisely
Your device, your phone, Eravyr. Nobody in the middle.
Wellness apps aren't covered by medical-privacy law, which means you're usually trusting a promise. We'd rather you trust a description — a specific one, in plain words, that matches the code actually running. Including the parts that sound less impressive.
No middle-man in the path
Your device to your phone to Eravyr. No data broker, no ad network, no analytics pixel riding along on your sheet.
Your name isn't stored next to your numbers
Your readings live in their own file — not rows in one shared table with everyone else's — and that file is named by a random ID. It contains no name and no email. Those live somewhere else entirely, in a separate vault, encrypted at rest (as are your lab results, medications, and the raw values behind each reading). So if anyone ever got the health file, they'd have numbers with nobody's name on them.
Compared only to you
Your baselines are computed from your data alone — never pooled with anyone else's, never sold, never used to train a model that reaches other people. That isn't a policy we could quietly reverse; it's how the scoring is built.
Where the thinking happens — the unflattering bit
The learning runs on Eravyr's server, not on your phone. The app in your browser is a display for results computed elsewhere. Plenty of apps in this category imply the reverse, because it sounds better in a headline. It wouldn't be true of the hosted version, so we don't say it.
No password to steal
Sign in with a magic link sent to your email. Nothing to reuse, nothing to leak, nothing for you to remember at 6am.
Export everything. Delete means delete.
Take your whole history with you whenever you want. And when you delete your account, it's really deleted — not flagged, not archived, not "retained for legitimate business purposes." One honest caveat: encrypted nightly backups exist so a server failure can't erase everyone, and a deleted account lingers in those until they age out.
There's a page that lists exactly which fields are encrypted and which ones deliberately aren't, and why — including a section titled "Not encrypted — on purpose." Read it before you trust us, not after.
The unglamorous part
What Eravyr can't do — told to you before you sign up.
- Garmin won't hand over heart-rate variability. Garmin syncs plenty to Apple Health and Health Connect, but not beat-to-beat HRV. If a Garmin is your only device, the gauges that lean on HRV will sit empty until you add another source or enter it yourself. You should know that now, not after.
- Reported stats need you. Clarity and Connection come from your weekly check-in. Skip the check-in and they'll sit there patiently doing nothing, because the alternative is making something up.
- It's a web app. Eravyr installs to your home screen from the browser. There's no app-store listing, and there may never be one.
- It reflects; it doesn't diagnose. Eravyr is a general-wellness tool for noticing your own patterns. It isn't a medical device and it isn't a clinician.
What it costs
One price, printed where you can find it.
No "contact us for pricing," no annual-only trickery, no plan named Platinum that exists to make another plan look reasonable. There is the hosted version, and there is a self-hosted one that isn't finished.
Eravyr Cloud
$5.99 / month
or $59 a year, if you'd rather think about it once.
- Nobody is being charged today. There is no checkout yet — the beta is free while it's a beta. This is what it will cost when that changes, published early so it can't surprise you later.
- Runs on Eravyr's server. Nothing to install, nothing to maintain, works on whatever you're holding.
- When billing opens, cancelling will be a button in the app — not an email to me, not a phone tree, not four screens of "are you sure."
- It's a subscription because it runs on a server that costs money every month. That's the entire reason.
Eravyr Private Edition
$140 once
A download, not a box in the mail.
- Self-hosted: you run it on hardware you already own, and everything stays inside your own house.
- One-time rather than monthly for a boring reason — on your machine, it costs Eravyr nothing every month. The cloud version costs us every month, so it charges you every month.
- You cannot buy this today. There's no button below because there's nothing to click yet. If you'd want it, tick the box in the form — that tick is the vote that decides whether it gets built.
Thirty days free — and here's the actual reason
It takes Eravyr about two weeks to learn your normal. For that stretch, your gauges honestly say "warming up," because there's nothing true to put there yet. Charging you during the part where the app doesn't know you yet would be charging you for a stopwatch. So the trial runs 30 days: long enough that by the time a first bill could arrive, the thing actually knows who you are and you've had a fortnight to decide whether that's worth six dollars. This is not a growth tactic dressed as generosity — it's just the shape of a product that refuses to make numbers up.
Where we actually are
Three accounts. One builder. No crowd to join yet.
Most landing pages at this stage would show you a logo bar and a testimonial from "Sarah K., Product Manager." Here's the real inventory instead: three accounts exist on Eravyr today. One is the founder. One is his wife. One is a neighbor who agreed to try it. There is no signup counter to impress you with, no press coverage, no funding round, and no revenue. When any of that changes, this paragraph changes with it.
Eravyr is built by Mike Nance — one person, writing the code, running the server, and answering the email. A career security engineer (CISSP), a published author, and a man working with a limited daily supply of energy — which is exactly why this app refuses to manufacture busywork or invent numbers to look busy.
Early access means exactly what it sounds like: rough edges, direct contact with the person who caused them, and real weight on what you say. If that sounds like a bad deal, it might be. If it sounds like the good part, you're the person we're looking for.
Beta signup
Ask for a seat in the beta.
No countdown timer, no "spots remaining." Tell me your email, tick what you'd actually use it for, and I'll get back to you like a person.
Already have an account? Sign in at app.eravyr.com.