Early access · First batch

Posture drifts.Aligno notices.

Wear it. Work normally. Get a gentle nudge when your posture drifts. No camera. No cloud. Your posture data stays on your machine.

Worn by 5 testers so far One-time price, no subscription No account, no cloud, no tracking
Replaying a real session Recorded data
Buzz
100
On track
0.0° off reference
Deviation from your calibrated posture (dashed line)
people tested the first prototype
posture checks per second
to learn the posture you choose
0
accounts, cloud services or tracking
The problem

Knowing how to sit isn't the hard part.

You already know how you want to sit. But once you're focused on work, posture becomes an afterthought. The drift is gradual and almost invisible in the moment: you sink a little lower, your shoulders roll forward, your head creeps toward the screen. Nothing dramatic happens, and you only notice hours later.

Before and after

Same person. Same desk. One difference.

The difference is a well-timed nudge. Not a loud alarm, and not another notification competing for your attention: a short vibration that only you can feel.

Without Aligno
Slouching at a desk without Aligno, the curve of the spine traced in red.
Sitting upright at the same desk with Aligno, spine traced in green and the app showing a score of 95.

Staged photos showing how Aligno is meant to work, not a measured result.

How it works

Four steps, then you forget it's there.

No phone to check and nothing to manage. The desktop app runs quietly in the background while you work.

STEP 01

Clip it on

It clips to the back of your collar or shirt, behind you and out of the way.

STEP 02

Calibrate

Sit the way you want to sit and confirm. That becomes your reference, not a generic ideal.

STEP 03

Work

The sensor checks your posture 25 times a second. Leave the app in the background; there's nothing to watch.

STEP 04

Feel the nudge

Stay drifted for a few seconds and you feel a short buzz. Stay there and it gets firmer. Because it waits first, a quick reach or turn usually doesn't count.

Try it

Try to slouch without Aligno noticing.

Lean them forward and see when the clip on their collar buzzes. Same rules as the real Aligno, to the second.

Simulation Aligno's real timing

Off their posture
0.0°
On track
Buzz clock
–
Starts past 7°
Three things to try
  1. Lean a littleStay under 7° for a moment.
  2. Lean, then sit back upGo all the way, and come back before it buzzes.
  3. Stay leanedHold a clear drift and wait.
How quickly it reacts

First buzz after 8 s of clear drift

A simulation of Aligno's timing rules, not a measurement. Nothing you do here leaves this page.

What testing showed

4 of 5 testers said they started adjusting on their own, before the buzz.

First round of testing · 5 testers · self-reported, short sessions · plus one physiotherapist session

That's the goal: not reminders forever, but noticing drift early enough that adjusting becomes a habit. Five testers is a small sample, so treat this as an early signal, not proof. Next is a two-week wear study on v2 with 10 people, measuring how often they wear it, how many buzzes feel unwanted, and comfort.

Physiotherapist session My takeaway: finding better posture is the easy part. The challenge begins after the session ends.

What still needs work

Testing also showed what isn't good enough yet. Three things are being improved before the first batch ships:

The attachment. The clip works, but it isn't yet as easy to position consistently as it needs to be.

Unwanted buzzes. Natural movement, like reaching, turning or standing up, can still occasionally read as a slouch.

Vibration strength. The right strength for different clothing and body types is still being tuned.

Designed for daily use

The details that decide whether you keep wearing it.

A nudge, not a notification

A short buzz that only gets firmer if you stay drifted. Choose how quickly it reacts: gentle, normal or firm. No phone buzzing, nothing popping up mid-meeting.

A reminder to get up

After 90 minutes of continuous use, the app suggests a short break. Sitting well still means getting up now and then.

Low battery, handled

When the charge runs low, the sensor stops buzzing and the app tells you, so a quiet sensor never leaves you guessing. It charges over USB-C.

Standalone mode, in testing

The sensor can also buzz on its own, with no computer nearby: away from your desk or with the laptop shut. It's being tested on v2 before it becomes the default.

Nothing leaves your machine

No account, no sync, no telemetry. Your posture history is a file on your own disk, and you can delete it whenever you like.

See the pattern, not just today's number

Daily and weekly summaries of how long you stayed near your reference, and how often you adjusted on your own. Your only benchmark is yesterday's you.

Aligno clipped to the back of a shirt collar while working at a desk — no camera involved.
Privacy by design

No camera. Ever.

Camera-based posture tools need to watch you to analyze your posture. Aligno doesn't. It uses a single motion sensor clipped to your clothing, which measures how your upper back is tilted and nothing else. There is no video, no image, no microphone, and no server to send anything to.

At a glance

Specifications

The Aligno device: a small matte-black clip-on unit with a USB-C charging port.
Sensor
6-axis motion sensor (accelerometer + gyroscope), sampled at 100 Hz
Posture checks
25× per second, streamed to the app
Feedback
Vibration motor, three levels that step up the longer you stay drifted; adjustable sensitivity
Connectivity
Bluetooth Low Energy to your computer
Standalone mode
Buzzes with no computer connected. In testing on v2; off by default for now.
Battery
Rechargeable lithium cell, USB-C charging. Battery life is being measured on v2.
Companion app
Windows desktop app: a single file, no installer. A macOS build exists but is not yet tested on real hardware.
Calibration
Confirm the posture you choose once; after that, about 5 seconds per session
Data
100% local. No account, no cloud, no telemetry
Wearing it
Clips to the back of your collar or shirt
Hardware
v2 in assembly: smaller than the v1 prototype in these photos
Intended use
A wellness and posture-awareness aid. Not a medical device.
Built by one person

Marius-Daniel Marinescu

I'm an engineer with seven years in aerospace, working on avionics verification and validation. I started Aligno to solve a problem I kept running into myself: knowing how to sit properly isn't enough when you're focused on work.

I'm designing the hardware, building the software, and testing it with real users, one iteration at a time.

Early access

Join the first batch.

Aligno is being built by one person, in public, and it isn't a finished mass-market product yet. The first batch is small and goes to people who want to help shape it.

€79target price for
the first batch

One-time, incl. VAT. No subscription.

What's included

The wearable sensor with vibration feedback
Desktop app with posture history and summaries
USB-C charging, and standalone mode once it's ready
App updates included, at no extra cost
A direct line to the person building it

Rather talk first? Message me directly.

No account, no analytics, no cookies, no tracking. The email address above is the only thing this site ever collects, and only if you type it in.

Before you sign up

This is an early-access device from a small first batch, not a polished consumer product. I'd rather you know that up front.

It's still being refined. The attachment, unwanted buzzes during natural movement, and vibration strength are all still being worked on.

Windows first. The macOS build hasn't been tested on real hardware yet.

Nothing is being sold yet. Signing up or messaging me commits you to nothing, and you'll get the details before anything ships.