Dorso vs Poxture App
You slouch, and your screen starts to blur until you sit up. That is Dorso, a small open source Mac app that started out as Posturr. Poxture App also checks your posture through your Mac's camera, but it checks for eight habits and shows how to fix each one. Every fact about Dorso below comes from Dorso's website, its GitHub page or its Mac App Store listing.
By Shyam Verma, maker of Poxture App · Checked 8 November 2026
Camera app · Mac
Dorso
- Notices with
- Your webcam, or AirPods Pro, Max, or 3rd generation or later
- Nudge
- A blur, glow, border or full-screen colour
- Works
- At your Mac
- Price
- Free from GitHub, or $4.99 on the Mac App Store
Mac app · ours
Poxture App
- Notices with
- Your Mac's camera
- Nudge
- A glow and a how-to card
- Works
- At your Mac
- Price
- Free an hour a day, $19 once for all day
The short version: want it free, with code you can read and an app that says it sends nothing? Dorso. Want more habits checked and a card that shows the fix? Poxture App.
Download Poxture App for MacChoose Dorso if
- You want your screen to blur or turn red until you sit up, so the reminder is hard to ignore.
- You want it to react within seconds of a slouch.
- You want it free from GitHub, or for $4.99 on the App Store with Family Sharing for up to six.
- You want an app whose privacy policy says it never connects to the internet.
- You want to read the code yourself. Dorso is open source.
- You wear AirPods Pro, Max, or 3rd generation or later, and would rather it read your head from them with no camera.
- Your Mac runs a macOS older than 15. Dorso asks for macOS 13 or later.
Choose Poxture App if
- You want to hear when you have sat still too long, as well as when you slouch, lean in, look down or prop your chin.
- You want each nudge to come with a card that shows how to fix it.
- You want a free hour every day, with every feature all day for your first 14 days.
What Dorso is
Dorso is a Mac menu-bar app by Thomas Johnell. It launched in January 2026 as Posturr and took the name Dorso in February. It uses your Mac's camera "to detect head position", or the head-tracking sensors in AirPods. Setup is one step: "Sit up straight and click calibrate." From then on it compares your head with that moment: how far it drops and how much closer it comes. Its App Store listing says it detects slouching and forward-head "turtle neck" posture. The code is public too: Dorso's site says it is "fully open source". On 8 November 2026 it had 2.6k stars on GitHub. Its US App Store listing showed four reviews from February 2026, all 5 stars, but too few ratings to show an overview.1,3,4,5
How Dorso nudges you
When you slouch, "a subtle on-screen overlay nudges you to sit up straight", and it fades when you sit up again. You pick the style: a blur that grows with how far you slouch, a red glow from the screen edges, coloured borders or a full-screen colour. It works across all connected displays, and a "Blur When Away" option hides your screen when you step away.1,3
You can set how sensitive it is, how long it waits before the warning, and a keyboard shortcut that pauses it, or pick no visual warning and keep only the history of how you sat. Since October 2026 it can keep a separate calibration for each desk you work at, and pause itself for 5 to 60 minutes. It can also pause while your Mac runs on battery. It has a daily posture score with weekly and monthly trends.1,4,5,6
Poxture App's nudge is a soft glow at the top of the screen you're using, with a card that shows how to fix the habit it noticed. It never blurs or tints the window you're working in.
Two ways to get it, and privacy
Dorso's GitHub page offers each release as a free signed download, and it also installs with Homebrew. Since July 2026 that version updates itself, and the App Store version updates through the App Store. On 8 November 2026 the Mac App Store version cost $4.99 once (US store), with no in-app purchases listed, and up to six family members can share it with Family Sharing. Its privacy policy says "Dorso does not connect to the internet" and "contains no analytics or tracking software", and its App Store privacy label says Data Not Collected.2,3,4,5
Poxture App is free to use: the first hour of checking each day is free for good, and for your first 14 days every feature works all day. To keep it on all day, it costs $19 once for the first 50 supporters, then $29. There is no subscription and no account. But Poxture App sends more than Dorso says it does. Camera images never leave your Mac. Poxture App sends usage counts with a random install number and, once a day, rounded posture scores with no install number, and supporters can turn both off in Settings. The privacy page lists every item.
What else Poxture App checks
Poxture App checks for eight habits: too close to the screen, looking down, hand on face, slouching, sitting still too long, hunched over, leaning to one side and not working from a proper desk setup. It checks once a minute. When you've been looking down or slouching for about half a minute, by default, the glow tells you.
Poxture App runs only on Apple Silicon Macs with macOS 15 or later. Dorso's listing asks for macOS 13 or later.3
Side by side
| Dorso | Poxture App | |
|---|---|---|
| How it notices | Your Mac's camera, or the motion sensors in AirPods Pro, Max, or 3rd generation or later | Your Mac's camera or an external webcam, once a minute |
| What it checks | Slouching and forward head | Eight habits, from leaning in to sitting still too long |
| How it nudges | A blur, red glow, border or full-screen colour that fades when you sit up | A soft glow at the top of the screen, and a card that shows how to fix it |
| How fast it reacts | Within seconds: it checks several times a second | After looking down or slouching holds for about half a minute, by default |
| Runs on | Mac with macOS 13 or later | Apple Silicon Mac with macOS 15 or later |
| Price | Free from GitHub, or $4.99 once on the Mac App Store | 1 hour a day free for good, all day for your first 14 days; $19 once for all day |
| What it sends | Nothing, its privacy policy says | Usage counts and rounded posture scores; supporters can turn both off |
| Code | Open source | Not public |
Questions
Is Poxture App a Dorso alternative?
Yes, if you want more than slouching checked. Both check your posture through your Mac's camera, and Dorso blurs or tints your screen. Poxture App checks for leaning in, looking down, a hand at your chin and sitting still too long, and shows a card on how to fix each. Dorso is free from GitHub.
Is Dorso free?
Yes, from its GitHub page: each release is a free signed download, and it also installs with Homebrew. The Mac App Store version cost $4.99 once on 8 November 2026 (US store).
Is Dorso safe?
Its privacy policy says "No images or video are ever stored, recorded, or transmitted" and "Dorso contains no analytics or tracking software", and its App Store privacy label says Data Not Collected. Its GitHub page says the app is "signed and notarized", and anyone can read its code. Since July 2026 the GitHub version updates itself. Its privacy policy was last updated in February 2026.
Is Dorso the same app as Posturr?
Yes. Dorso was called Posturr when it launched in January 2026, and it took the name Dorso in February 2026. Its release notes say "Posturr is now Dorso".
Does Dorso work without a camera?
Yes. With AirPods Pro, AirPods Max or AirPods 3rd generation or later, on macOS 14 or later, it reads your head tilt from the AirPods and needs no camera. Poxture App needs a camera.
Does Dorso work on Windows?
No. Dorso is a Mac app: its App Store listing says "Only for Mac" and asks for macOS 13 or later. Poxture App runs only on Apple Silicon Macs with macOS 15 or later.
Does Dorso only blur the screen?
No. Dorso can blur the screen, glow red from the edges, draw a border, fill the screen with a colour, or show nothing and only keep a history of how you sat.
Does Poxture App send any data?
Yes, a little. Camera images never leave your Mac. Poxture App sends usage counts with a random install number and, once a day, rounded posture scores with no install number, and supporters can turn both off in Settings. The privacy page lists each one.
Where Dorso sits in my best Mac posture apps list
Choosing a posture app for Mac
Plumb alternativeHow Posture Reminder AI comparesPosture app alternatives
Sources, read 8 November 2026
- Dorso's website (home page), checked 2026-11-08
- Dorso's website (privacy policy), checked 2026-11-08
- Dorso's website (Mac App Store listing), checked 2026-11-08
- Dorso's website (GitHub project page), checked 2026-11-08
- Dorso's website (GitHub releases page), checked 2026-11-08
- Dorso's website (GitHub issues), checked 2026-11-08