CO2 Apple Watch Aranet App

CO2 Values, everywhere.

ON YOUR APPLE WATCH,
& ON YOUR LOCKSCREEN.
DOWNLOAD THE APP

See quickly the CO2 Values with either:

Apple Watch Complications

2 different type of complications available.

Iphone Lockscreen Widgets

2 different type of complications available.

A quick glance shows both the current CO2 value and when it was last updated, ensuring you always know if you’re looking at recent data.

With Alarms and Customizations:

Alarms

The app can notify you when CO2 levels exceed your set threshold. You can choose between:

  • Once mode: Alerts once when threshold is exceeded
  • Repeat mode: Continues alerting while levels remain high
  • Alerts include snooze options and can be scheduled for specific days.

Thresholds customization

These thresholds can be customized in the CO2⁺ premium version, but here is a common set-up:

  • Green (below 800 ppm): Excellent air quality
  • Yellow (800-1200 ppm): Moderate, consider ventilation
  • Red (above 1200 ppm): Poor air quality, immediate ventilation needed

Most common questions on CO2 monitoring:

Monitoring CO2 levels is crucial for:

  • Understanding indoor air quality
  • Optimizing ventilation in homes and offices
  • Maintaining cognitive performance
  • Reducing virus transmission risk such a covid or flu
  • Ensuring healthy sleep environments

The Apple Watch complication provides:

  • At-a-glance CO2 readings
  • Quick access to current air quality status
  • Convenient monitoring without phone access
  • Real-time alerts on your wrist

CO2⁺ premium includes:

  • Custom CO2 alert thresholds
  • Scheduled alerts for specific days
  • Apple Watch complications
  • Lock screen widgets
  • Advanced alert modes

Due to iOS background limitations, continuous real-time updates aren’t possible when the app is inactive. The app maximizes update frequency within iOS constraints, typically refreshing every few minutes when possible.
How can I ensure my data stays updated? To force a synchronization:

  • Open the app
  • Tap any widget or complication
  • Check the last sync time displayed
  • The app will automatically sync when opened.

The app might have an impact on your battery, but it is optimized for battery efficiency:

  • Uses Bluetooth Low Energy (BLE) protocol
  • Intelligent background refresh scheduling
  • Minimal impact on device battery life

If experiencing connection problems:

  • Ensure Bluetooth is enabled
  • Check device proximity
  • Verify device battery level
  • Try disconnecting and reconnecting
  • Restart the app if needed

Monitor your air quality!

Measure Quickly
the CO2 with you Watch!

DOWNLOAD THE APP