How to reduce data usage on a Mac, on a hotspot or capped plan
Low Data Mode on a Mac, pausing iCloud Photos and updates, and the browser settings that cut background data on a phone hotspot.
How do I turn on Low Data Mode on a Mac?
System Settings, Wi-Fi, click Details next to the network, and turn on Low Data Mode. macOS and apps that respect it pause automatic updates and background tasks on that network only.
What else saves data on a Mac?
- Pause iCloud Photos sync in the Photos app settings.
- Turn off automatic macOS and App Store updates while on the hotspot.
- Close or mute tabs that autoplay video, and lower video quality in streaming apps.
How do I check it worked?
Activity Monitor's Network tab should show small numbers after the change. Which app is using the internet explains how to read it.
Common questions
Does Mac have a low data mode?
Yes, per Wi-Fi network: System Settings, Wi-Fi, Details, Low Data Mode.
How do I stop my Mac downloading updates on a hotspot?
Low Data Mode pauses automatic updates on that network; you can also turn off automatic updates in Software Update.