Compare software

Traffic Light vs Data Monitor: catalog facts
Traffic Light	Data Monitor
Best for: Android users monitoring their data usage privately	Best for: Android users on a capped mobile data plan
Free Free and open source under the MIT license.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Requests few permissions No tracking All 3 strengths for Traffic Light Requests few permissions No tracking Low battery use	Per-app data usage statistics Separate tracking of mobile and Wi-Fi data All 4 strengths for Data Monitor Per-app data usage statistics Separate tracking of mobile and Wi-Fi data Widgets and notification for quick checks Available on Google Play and GitHub
Android only Little public documentation of its feature set	Android only Releases are less frequent than in its early years
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Traffic Light github.com/leekleak/traffic-light f-droid.org/packages/com.leekleak.trafficlight Catalog checked October 2, 2026	Official website Full listing and sources Sources for Data Monitor github.com/itsdrnoob/DataMonitor f-droid.org/packages/com.drnoob.datamonitor Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.