Plumb vs Poxture App
If you've looked at both, you've seen how alike they are: a Mac app, your camera, and a soft glow on the screen when you slip. The differences are in what each one checks, how you pay and how many Macs one purchase covers. Every fact about Plumb below comes from Plumb's own website.
By Shyam Verma, maker of Poxture App · Checked 2 November 2026
Camera app · Mac
Plumb
- Notices with
- Your Mac's camera
- Nudge
- A soft glow at the screen edge, with or without sound
- Works
- At your Mac
- Price
- $45 founding lifetime, $34.99 a year or $3.99 a month
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 one licence for two Macs, or a reminder with sound? Plumb. Want a card that names the habit and shows the fix, and a longer free start? Poxture App.
Download Poxture App for MacChoose Plumb if
- You use two Macs. One Plumb licence covers both.
- You want a reminder with sound, or a menu-bar icon that leans when you do.
- You'd rather pay by the month or the year than up front.
- You want no posture data to leave your Mac. Plumb's privacy policy says it processes posture data only on your Mac.
Choose Poxture App if
- You want more than slouching checked: looking down, a hand on your face, leaning to one side and sitting still too long.
- You want each nudge to show how to fix it.
- You'd like a longer look first: a free hour every day, with every feature all day for your first 14 days.
What Plumb is
Plumb is a Mac posture coach from Be a Goose, LLC in California, for Macs with Apple silicon. It "uses your Mac's camera to catch it and gently remind you to sit taller". Setup takes three poses: you sit upright, show it your slouch, then look down, "so Plumb can learn how each position differs". It keeps a history of your upright time, your longest stretch and how quickly you reset after a reminder.1,2
Two glows, side by side
Plumb "waits to see whether the slouch lasts before reminding you". Then "A soft glow rises at the edge of your screen", with sound or without. The glow fades as you sit upright, with nothing to dismiss, and the menu-bar icon leans when you do.1
Poxture App also waits. It checks once a minute. When you've been looking down or slouching for about half a minute, by default, a soft glow at the top of the screen tells you. The difference is the card that comes with it, which shows how to fix the habit it noticed.
What each one checks
Plumb's setup teaches it three positions: upright, slouching and looking down.1
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. The sitting still check nudges you after 40 minutes at your desk, by default, and standing up or stepping away starts the timer again.
Price, trial and how many Macs
On 2 November 2026 Plumb's site listed a founding price of $45, paid once (shown against $89.99), or $34.99 a year, or $3.99 a month. One licence covers two Macs. The free trial is three days. It starts with your first monitoring session, needs no card and doesn't charge you automatically when it ends.1
Poxture App is $19 once, for one Mac. 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. You get a full refund within 14 days, no questions.
Privacy
Plumb says "Each image is discarded after it's measured. No photos or video are saved or uploaded." Its privacy policy says camera images and posture data are processed only on your Mac. It also lists what does leave: licence, payment and security data, events about the trial and purchase flow, website analytics, update requests and crash reports. Crash reports are on by default and can be turned off.1,2
Poxture App's camera images never leave your Mac either. The difference is posture data: Plumb says it keeps yours on the 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.
Side by side
| Plumb | Poxture App | |
|---|---|---|
| Runs on | Macs with Apple silicon | Apple Silicon Mac with macOS 15 or later |
| What it checks | Slouching (setup also learns upright and looking-down poses) | Eight habits, from leaning in to sitting still too long |
| How it nudges | A soft glow at the screen edge, with or without sound | A soft glow at the top of the screen, and a card that shows how to fix it |
| Free use | 3 days from your first monitoring session | 1 hour a day, free for good; all day for your first 14 days |
| Price | $45 founding lifetime, $34.99 a year or $3.99 a month | $19 once |
| Macs per purchase | Two | One |
| Posture data | Processed only on your Mac, its policy says | Usage counts and rounded posture scores; supporters can turn both off |
Questions
Is Poxture App a good Plumb alternative?
They are close: both are Mac apps that check your posture through the camera and nudge with a soft glow. Poxture App also checks looking down, a hand on your face, leaning to one side and sitting still too long, and shows how to fix each. One Plumb licence covers two Macs.
How long is the Plumb free trial?
Three days, per Plumb's website. It starts with your first monitoring session, so setup doesn't use it up, and no card is needed.
Does Plumb run on Intel Macs?
Plumb's site says it is "For Macs with Apple silicon." Poxture App also needs an Apple Silicon Mac, with macOS 15 or later.
Do both keep camera images on the Mac?
Both say so. Plumb says "Camera images stay on your Mac." Poxture App's camera images never leave your Mac, and the privacy page shows how to check that yourself.
Plumb in the best posture app for Mac list
Choosing a posture app for Mac
Posture Reminder AI alternativeHow SitWit comparesAll posture app comparisons
Sources, read 2 November 2026
- Plumb's website (home page), checked 2026-11-02
- Plumb's website (privacy policy), checked 2026-11-02