Contacts
Advanced
Google's contacts app for viewing, editing and backing up the people saved in your Google Account.
Google package
Google Contacts Sync
Advanced: com.google.android.syncadapters.contacts Advanced Community evidence
The background sync adapter that keeps the contacts on the phone matched with the contacts in your Google Account. You can disable it, with a caveat: read what stops working first.
What it does
Google Contacts Sync is the component that copies contacts between your Google Account and Android's contacts storage on the phone. It runs in the background whenever contacts change on either side or Android schedules a sync, and its on and off switch is the Contacts toggle in your Google Account's sync settings. It has no icon of its own.
If you disable it
Contacts stop syncing with your Google Account, so new or edited contacts are not backed up and do not reach your other devices.
How to disable it
On most phones Settings greys out Disable for this package, so ADB is the way to turn it off. The commands below work without root and can be undone.
Disable it (reversible)
adb shell pm disable-user --user 0 com.google.android.syncadapters.contactsTurn it back on
adb shell pm enable com.google.android.syncadapters.contactsThe stronger option removes it for your user only; the original copy stays on the phone and a factory reset brings it back. Prefer disabling: it is easier to undo.
Uninstall for the main user
adb shell pm uninstall -k --user 0 com.google.android.syncadapters.contactsRestore after an uninstall
adb shell cmd package install-existing com.google.android.syncadapters.contactsNew to ADB? Set it up in about ten minutes.
Data and battery
Sends and receives your Google contacts between the phone and Google's servers.
Where it appears
- Made by Google LLC.
Questions people ask
What is com.google.android.syncadapters.contacts?
com.google.android.syncadapters.contacts is Google Contacts Sync. The background sync adapter that keeps the contacts on the phone matched with the contacts in your Google Account.
Can I disable Google Contacts Sync?
You can disable it, with a caveat: read what stops working first. On most phones it takes ADB.
What happens if I disable Google Contacts Sync?
Contacts stop syncing with your Google Account, so new or edited contacts are not backed up and do not reach your other devices.
Sources
- Universal Android Debloater list entryCommunity list
- Android Developers: AbstractThreadedSyncAdapterDeveloper documentation
Each source answered when this page was checked on 25 October 2026.
Confidence: Community evidence. Backed by community debloat lists and forum reports, not by the maker. How we decide a verdict.
Cite this page: https://mysystemapp.com/packages/com.google.android.syncadapters.contacts/ (verified 25 October 2026). Something wrong or out of date? Request a correction.