Unfortunately, none of these services give you an option to disconnect the service from your account.
If you want to remove an app or service from your Facebook account, you have to do it via Facebook. Here;s how.
To remove an app or service from Facebook do the following;
1. Go to https://www.Facebook.com/
2. Enter your login details in the spaces provided in the Facebook homepage to proceed to your account.
3. Next, click the triangular-shaped icon at the top right corner of your Facebook homepage.
4. Choose Settings from the drop-down menu. See screenshot below;
5. On the Settings page, select Apps from the left column.
If you want to revoke specific permissions for an app, click the edit button next to an app.
6. Click the close button to remove an app or service from your Facebook account.
How to Remove App Or Service From Facebook – App
To remove app or service from Facebook via Facebook app, do the following;
1. Click the Facebook app in your device
2. Tap the hamburger button
3. Next, scroll down the screen, and click Settings.
4. Choose “Account Settings”.
5. Scroll down the Account Settings screen and click Apps.
6. On the Apps and Websites screen, click on ‘Logged in with Facebook’.
Performing step 6 above, will display a complete list of all apps and services that have access to your Facebook account.
7. Click the service or app that you want to remove. On the app’s own screen, you can edit the information it has access to.
8. To remove it, scroll all the way to the bottom of the screen and click the ‘Remove App’ button.
When you remove an app or service from your Facebook account, you stop the app from accessing any future information. Apps still have access to your email account and removing it from Facebook won’t undo that. If you want to remove the personal information that’s been collected so far you should look for an option to delete your account with the app or service you removed.
If you think removing an app or service is pointless because it doesn’t wipe all your personal data from the app/service’s database, that’s not true. If you have a malicious app on your hands, you don’t want it accessing any more information than it already has. If it still has access to your account, it might post on your behalf or spam your friends.