Skip to content

What is mobileassetd on Mac?

By Junaid, maker of Taskglass · Last reviewed

Downloads extra system resources from Apple, such as fonts, voices and language data.

mobileassetd downloads and manages optional system assets that macOS fetches on demand, such as fonts, dictionaries, voices, language data and machine-learning models used by system features. It's busiest after a macOS update or when you turn on a feature that needs new data.

Category
Apple service
Made by
Apple
Safe to quit:
With care

Shown in Activity Monitor as mobileassetd

Why is mobileassetd using so much CPU or memory?

  • After a macOS update, while new assets download
  • Turning on a feature that needs extra data (a new language, voice or dictation)
  • A slow or interrupted download being retried

What to do

  1. 1Let it finish on a good network connection
  2. 2Keep the Mac plugged in and awake for a while
  3. 3Restart your Mac if it seems stuck

Safe to quit? With care.

macOS relaunches it; downloads will resume later.

Related processes

Part of the Taskglass Process Library

See it live in Taskglass.

Taskglass shows what mobileassetd is doing on your Mac right now, explains it in plain English, and tells you if it's safe. It does the same for 213 other processes.