Private detection
Frames are processed locally with Core ML. Camera access stays in the app and never touches a server.
- Runs entirely offline
- Permissions requested once
- No analytics or trackers
Why NailBiteMenu
Everything you need to stay mindful.
Each release bundles optimized Core ML models so you can pick the right balance of accuracy and efficiency for your Mac, without sharing a single frame outside your device.
Gentle coaching
Overlays give you a quick "Stay mindful" reminder, paired with an optional macOS notification and sound.
- Three second overlay timer
- Dismiss via Enter or click
- Notifications respect system focus
Actionable stats
The built-in Statistics view breaks down detections by day, weekday, and hour so you can spot trends fast.
- Last 7 / 30 / 90 days
- Daily averages & streaks
- Reset data whenever you want
Installation
Ready in three steps.
Download, drag into Applications, and allow camera access when prompted. That's it.
-
1
Download the latest DMG
Grab NailBiteMenu.dmg, then double-click to mount.
-
2
Drag into Applications
Drop
NailBiteMenu.appinto Applications. On first launch, approve under System Settings → Privacy & Security → Open Anyway. -
3
Pin it to the menu bar
Start the app. If the icon hides behind the chevron (⌃), drag it out from Control Center to keep it visible.
Controls
All controls live inside the status popover.
- Start or pause monitoring with one click.
- Adjust detection threshold for sensitivity.
- Select model size: 224 px, 384 px, 512 px.
- Toggle alerts, debug stats, and auto-overlay.
Home window
Quick actions when launching from Finder.
- Jump into detailed Settings.
- Collapse to menu bar while monitoring continues.
- See live status and last detection at a glance.
Threshold presets
Preset
Behavior
Low · 45%
Ultra sensitive, great for darker rooms.
Balanced · 60%
Default for most lighting setups.
High · 75%+
Only fires on strong evidence.
Model sizes
Model
Best for
224 px
Intel Macs · lowest power draw
384 px
Balanced mix of speed + accuracy
512 px
Apple Silicon · maximum precision
Alerts
Stay mindful with overlays & sound cues.
When a detection fires, you'll see a compact overlay with a countdown and "Stay mindful" action. It dismisses automatically after three seconds or immediately when you press Enter.
- Optional macOS notification with sound.
- Respect Focus filters and Do Not Disturb.
- Mute alerts or overlay separately in Settings.
Privacy
On-device by design.
NailBiteMenu never uploads video, detections, or statistics. Everything stays local in your user Library, and you can wipe stats anytime from Settings → Data → Reset Tracking.
- Camera feed processed in memory.
- No background network requests.
- Source available on GitHub.
Screenshots
See NailBiteMenu in action.
The app ships with a home window, compact menu controls, and deep habit insights.
Requirements
Works on all Macs.
macOS 15.6+
Optimized for Sequoia with menu bar controls and notifications.
Camera access
Approve the camera prompt once; revoke anytime under Privacy settings.
Apple Silicon ready
Runs great on M-series chips, with lighter 224 px model for Intel fans.