The short answer
Choose a native Mac app or browser-based cross-platform access.
StopSlouching can be evaluated in a browser and offers a Windows tray app, posture detection, and a targeted stretch on each slouch. Plumb is a native Mac product with three-pose calibration and local recovery trends.
Show Plumb how you sit, receive a quiet alert after you remain slouched, and keep your posture history on your Mac.
The web experience is less Mac-native and the free allowance is a lifetime hour.
Your free trial starts with the first monitoring session, not the download.
At a glance
Plumb vs StopSlouching at a glance
Compare what each product asks you to install, wear, permit, notice, and pay for.
| What changes for you | Plumb | StopSlouching |
|---|---|---|
| How it notices posture | On-device Mac camera model, calibrated to three personal positions | On-device webcam pose model in the browser or Windows app |
| How it responds | A quiet reminder after posture drift persists | Posture alerts paired with a targeted stretch |
| Personal setup | Learns upright, natural slump, and looking-down positions | Camera-based posture setup; public pages do not describe a three-pose model |
| What progress looks like | Local posture time, recoveries, and longer-term trends | Coaching and paid-plan progress features; team detail is less central than the cross-platform access |
| Where it works | macOS | Browser on Windows, Mac, and Linux; native Windows tray app |
| What you need | A Mac and a useful camera angle | No wearable; webcam required |
| Before you pay | Complete 3-day trial with no card or account | 60 lifetime minutes with no signup or card |
| Price checked 23 July 2026 | $3.99 monthly, $34.99 annually, or $45 founding lifetime | Sale pricing from $2.99 monthly or $39.99 lifetime; 14-day money-back guarantee |
The daily routine
Choose a native Mac app or start in a web browser.
Plumb is built around a native Mac session and local recovery history. StopSlouching lowers the setup barrier with browser access and pairs posture events with targeted stretches.
StopSlouching requires no wearable; webcam required. It supports Browser on Windows, Mac, and Linux; native Windows tray app. Check whether that hardware and platform setup works at the desk where you need reminders.
Show it upright, your natural slump, and the position you use when looking down.
Plumb processes the camera view on your Mac and ignores brief reaches and shifts.
A quiet cue appears after you remain slouched and clears when you return to the upright position you recorded.
The first week
How each product sends posture feedback
Plumb begins by asking for three examples from your real desk setup: upright, your natural slump, and the position you use when looking down. That gives the app a personal reference before it starts coaching. You then begin a monitoring session and continue working while classification stays on the Mac.
Plumb ignores brief movements. A quiet reminder appears after your posture stays outside the calibrated range. The reminder clears after you return, and Plumb records the recovery.
StopSlouching uses camera-based posture setup; public pages do not describe a three-pose model. During use, it relies on on-device webcam pose model in the browser or Windows app and responds with posture alerts paired with a targeted stretch.
Plumb records posture time, recoveries, and longer-term patterns on your Mac. StopSlouching offers coaching and paid-plan progress features; team detail is less central than the cross-platform access. Compare the reports and decide which measurements you would use.
Plumb waits, reminds you, and records recovery
A quiet cue appears after sustained slouching and clears after you return to your calibrated range.
Fast browser access, cross-platform reach, and stretch coaching
Main drawback: The web experience is less Mac-native and the free allowance is a lifetime hour.
The coaching experience
Compare posture-only reminders with alerts paired with stretches.
Plumb waits to see whether a posture change lasts, then shows one quiet cue. The delay prevents brief reaches, reading positions, and normal movement from triggering alerts.
StopSlouching responds with posture alerts paired with a targeted stretch. Its main advantage is fast browser access, cross-platform reach, and stretch coaching. Its main drawback is the web experience is less Mac-native and the free allowance is a lifetime hour.
After a Plumb reminder, returning to your calibrated range clears the cue. Plumb stores posture time, recoveries, and longer-term patterns on the Mac.
Record three positions, start monitoring, and receive a cue after you remain slouched for the delay you selected.
Pick your trade-off
Compare the daily setup and maintenance
- Want a native Mac experience.
- Prefer posture recovery data to stretch prompts.
- Want three-pose personal calibration.
- Need the full product trial to start only when monitoring begins.
- Need Windows or Linux access.
- Want to test in a browser without installing.
- Value a stretch paired with each posture event.
- Prefer the current lower lifetime price.
Plumb only works on Mac and needs a clear camera angle. StopSlouching has this drawback: the web experience is less Mac-native and the free allowance is a lifetime hour.
Privacy and setup
Compare camera, device, and account privacy
Plumb uses the Mac camera to compare your current head and shoulder position with the three positions you recorded. It processes frames on the device, discards them during use, and keeps posture history on the Mac. Camera images and posture history are excluded from diagnostics. No account is required for the three-day trial.
That model still has a clear requirement: you must be comfortable granting camera access and have an angle that can see your working position. If your camera is closed, obstructed, or pointed away while using an external display, Plumb cannot coach the session properly.
StopSlouching has this setup requirement: No wearable; webcam required. Its documented privacy position is on-device detection; product copy says nothing is uploaded. For some buyers, that removes the permission they care about most. For others, it adds hardware, account, sync, or platform requirements that make everyday use less convenient.
Read the privacy policy, check the required hardware or account, and test whether you can pause the product during calls and other unsuitable tasks.
Try before you commit
Compare trial terms and prices before paying
You can use Plumb’s complete coaching loop for three days without a card or account. The trial begins when monitoring starts, so downloading it early does not waste any of the trial.
For StopSlouching, the documented trial is: 60 lifetime minutes with no signup or card. The price when checked was: Sale pricing from $2.99 monthly or $39.99 lifetime; 14-day money-back guarantee. Pricing can move, so confirm the current offer before buying.
No card. No account. No cloud posture history.
Common questions
Plumb vs StopSlouching FAQ
Is Plumb better than StopSlouching?
Plumb is the stronger fit for Mac users who want three-pose personal calibration, reminders after sustained drift, and local recovery trends. StopSlouching is the stronger fit for people who prioritise fast browser access, cross-platform reach, and stretch coaching.
What is the biggest difference between Plumb and StopSlouching?
Plumb uses a quiet reminder after sustained posture drift. StopSlouching provides posture alerts paired with a targeted stretch.
What equipment does StopSlouching require?
No wearable; webcam required
How does StopSlouching handle privacy?
On-device detection; product copy says nothing is uploaded
How much does StopSlouching cost?
Sale pricing from $2.99 monthly or $39.99 lifetime; 14-day money-back guarantee. Pricing was checked on 23 July 2026; verify the current official offer before purchasing.