SitApp and Posture Reminder both use your webcam and AI to monitor posture — but the similarity ends there. The key difference is in how each app understands what "good posture" means for you specifically.
SitApp uses a general-purpose posture detection model. It works for most people in most situations, but it applies the same standards to everyone regardless of body type, chair height, or camera angle.
Posture Reminder takes personalization seriously. During an initial setup phase, PostureNet — our deep neural network — learns what YOUR good and bad posture look like. It adapts to your body proportions, your desk setup, and your natural sitting position.
This means dramatically fewer false positives and more accurate alerts that actually matter.
Posture Reminder is built as a native Mac application, designed from the ground up for macOS. This means tighter system integration, lower CPU and memory usage, and a smoother experience that feels right at home on your Mac.
Native development also means better camera access optimization and more efficient on-device AI inference — your Mac stays cool and your battery lasts longer.
All processing happens locally on your machine. No frames or images are ever uploaded to any server. Your posture data stays on your device, period.
| Feature | SitApp | Posture Reminder |
|---|---|---|
| Posture detection | Generic model | Personalized to your body |
| Setup calibration | Minimal | Learns your good & bad posture |
| False alert rate | Higher (one-size-fits-all) | Lower (personalized baseline) |
| App architecture | Cross-platform | Mac-native (optimized) |
| Resource efficiency | Standard | Lightweight native performance |
| Privacy | On-device | 100% on-device, no cloud |
When your posture app actually understands how YOU sit, everything changes — fewer interruptions, more accurate alerts, and faster improvement. Try Posture Reminder free from the Mac App Store and feel the difference.
AI-powered posture monitoring for Mac. No accessories needed.
