SitSense vs Poxture App

SitSense turns posture into a small game in your browser. A companion lives in an on-screen reef, and when you drift, the water dims and she comes to find you. Poxture App lives in your Mac's menu bar, glows at the top of your screen and names the habit to fix. Every fact about SitSense below comes from SitSense's website or its Chrome Web Store listing.

By Shyam Verma, maker of Poxture App · Checked 8 November 2026

Browser app · any computer with a webcam

SitSense

Notices with: Your webcam, in a browser tab
Nudge: The reef dims and a companion comes to find you
Works: While its tab is open
Price: Free for good; Pro $34.99 a year

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 a free coach in a browser tab, with a companion that reacts to how you sit? SitSense. Want a Mac app that keeps checking with no tab open and shows how to fix each habit? Poxture App.

Download Poxture App for Mac

Choose SitSense if

You like a small game: a companion who reacts to how you sit.
You work on Windows or Linux, or you don't want to install anything.
You want a free tool for good. The extension needs no account.
You want to see the angles behind your posture, and an AI coach and long-term trends on Pro.
You're buying for a company. SitSense has an Enterprise plan.

Choose Poxture App if

You want it to keep checking while you work, with no browser tab to keep open.
You want a nudge that names the habit, from a hand on your face to looking down, and a card on how to fix it.
You'd like this week's history free, and to pay once, $19, instead of every year.

What SitSense is

SitSense is a posture coach that runs in your browser, founded by Chaitanya Agarwal, a student at UC Davis. It works in Chrome, Firefox, Safari and Edge on Windows, macOS and Linux, with nothing to install. It reads your posture from the webcam inside the browser tab and measures angles such as your neck angle, head tilt and shoulder slope. It calibrates again at the start of every session, "so “tall” means your tall". There is also a free Chrome extension, which works in Edge too.^1,4,5,6,7

SitSense's reviews page quotes four of its users and a review by Scout Forge, which scored it 4.0 out of 5. On 8 November 2026 its Chrome extension had one rating, 5 out of 5.^7,8

A companion, or a glow

In the web app, your companion is an axolotl in a reef. When you drift, "the water dims and your companion stops working and comes to find you", and SitSense names the joint that drifted. The extension uses a coloured outline of you, sound alerts you can turn off, notifications and coaching tips. Both need their tab open while you work.^2,4,5

Poxture App runs from your menu bar, so there is no tab to keep open, and it checks your posture while you work in any app. When you have been looking down or slouching for about 30 seconds, by default, a soft glow grows at the top of your screen and a card names the habit and shows how to fix it. When you sit right again, the glow turns green.

What is free, and what Pro adds

SitSense has a free plan "forever", with no trial and no card. Pro is $34.99 billed once a year; its pricing page also gives $4.99 a month billed monthly. Pro adds long-term trends, your full session history, an AI coach across all your sessions, weekly email reports and custom goals. For companies there is an Enterprise plan at a custom price.²

In Poxture App, history isn't a paid extra. Its Today view shows how many of the day's nudges you fixed and your nudges each day this week, and it stays after your first 14 days. Poxture App is free to use: the first hour of each day is free for good, and for your first 14 days every feature works all day, and $19 once keeps it on all day.

Privacy

SitSense says no video or images are ever stored or sent, and only posture numbers are saved. Its privacy policy says no camera frames or body landmarks leave your device. With an account it stores your posture measurements, your answers to its first-run questions and your sessions. It uses PostHog and Google Analytics and, after you accept cookies, may record your screen on its sign-up, sign-in and app pages to fix confusing steps. On the paid chat, your messages, display name and a posture summary go to OpenAI. The extension has no account, no analytics, and sends nothing to its servers.^1,3

Poxture App has nothing to sign up for. It never saves or shows a camera picture, and its 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 all of it.

What Poxture App checks

Poxture App checks 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 needs an Apple Silicon Mac with macOS 15 or later, and uses your Mac's camera or an external webcam.

Side by side

	SitSense	Poxture App
Runs on	Chrome, Firefox, Safari or Edge on Windows, macOS or Linux; Chrome extension	Apple Silicon Mac with macOS 15 or later
How it runs	In a browser tab you keep open	From the menu bar, with no tab to keep open
How it nudges	The reef dims and a companion comes to find you; the extension adds sounds and notifications	A soft glow at the top of the screen, a card that shows how to fix it, and a green glow once you've fixed it
History	Latest session free; full history and long-term trends on Pro	Today and this week, free
Free use	Free plan for good; no trial	1 hour a day, free for good; all day for your first 14 days
Price	Pro $34.99 a year, or $4.99 a month	$19 once
Account	Web app: its start button leads to a sign-up page. Extension: none	None

Questions

What's a SitSense alternative that works without a browser tab?

Poxture App is a Mac app, so it keeps checking your posture from the menu bar while you work, with no tab to keep open. Each nudge names the habit, from a hand on your face to looking down, with a card on how to fix it. It needs an Apple Silicon Mac.

Is SitSense free?

Yes. SitSense has a free plan for good, and its extension is free. On 8 November 2026 Pro was $34.99 billed once a year, per its pricing page. It offers no trial.

Does SitSense need a download?

No. The web app runs in your browser. There is also an optional Chrome extension, which works in Edge too.

Does SitSense work on a Mac?

Yes, in a browser. SitSense supports Chrome, Firefox, Safari and Edge on macOS, with nothing to install, and its Chrome extension works in Edge too. The web app and the extension both need their tab open while you work. Poxture App is a Mac app, so it keeps checking your posture from the menu bar while you work, with no tab to keep open.

What do reviews say about SitSense?

SitSense's reviews page quotes four of its users and a review by Scout Forge, which scored it 4.0 out of 5. On 8 November 2026 its Chrome extension had one rating, 5 out of 5.

Does Poxture App work in a browser?

No. Poxture App is a Mac app. It needs an Apple Silicon Mac (M1 or later) with macOS 15 or later.

Download Poxture App for Mac

Best posture apps for Mac, if you'd rather install an app than use SitSense

Choosing a posture app for Mac

What Poxture App costs

SitCoach alternative How StopSlouching compares All posture app comparisons

Sources, read 8 November 2026

SitSense's website (home page), checked 2026-11-08
SitSense's website (pricing page), checked 2026-11-08
SitSense's website (privacy policy), checked 2026-11-08
SitSense's website (how it works page), checked 2026-11-08
SitSense's website (extension page), checked 2026-11-08
SitSense's website (about page), checked 2026-11-08
SitSense's website (Chrome Web Store listing), checked 2026-11-08
SitSense's website (reviews page), checked 2026-11-08