Removing your Haystack contacts from your iOS or Mac is simple:
Open the Haystack app
Tap the Settings tab
Toggle Contact Syncing option to "Off"
And that's it!
If you still see your Haystack contacts in your iOS or Mac contacts, it may be that you have used our legacy method to sync contacts. In this case, please follow the below instructions.
Open iPhone Settings
Scroll down and tap Apps
Tap Contacts
Tap Contacts Accounts
Tap Haystack Contacts
Tap Delete Account
Tap Delete Account
Tap Delete from My iPhone
After confirming, your Haystack contacts will be removed from your Apple contacts app.