Published by Kylook GmbH

Report an issue with Address Book & Contacts Sync.
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Why should I report an Issue with Address Book & Contacts Sync?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Kylook GmbH to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.

Address Book & Contacts Sync Customer Insights

1. Sooo disappointed!Its junk delete you contacts in local address book and secondly app it self very heavy not smooth totally avoid to use it my advice.Text size throughout is too small for us with low vision.

2. Excellent Sidney 007electronic engineerI need an app that can customised my contacts from various sourcesVery useful & reliable progbest.

3. So disappointed as I loved the app previously.unsophisticated user, does everything I need and is uncomplicated!!!! BUT! Keep getting message "Kylook is running, tap for more info or to stop".

4. What should I do?Slow to load, freezes often, deleted hundreds of contacts on two diff phones.

5. address book here you have all your contacts to hand.

6. Kylook says that they are working on it, but the is no estimate for when functionality will be restored.This app was fantastic on my Samsung S3 but on the S9 it constantly freezes and will not load.

7. How do I delete my account if no longer interested?Best address book &contacts Advanced lay out for all your important.

8. 08 DEC 2018 It used to work for me to sync the contacts from 3 Gmail accounts.

9. ready to use, fast look up your contacts.

10. contacts.

11. Contacts.

Steps to Troubleshoot & Fix Address Book & Contacts Sync Issues

1. Fix Address Book & Contacts Sync Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Address Book & Contacts Sync: Restarting the app will resolve most errors.
  2. Update the Address Book & Contacts Sync App. Here is how:
    1. On Android goto PlayStore » Search for "Address Book & Contacts Sync" » Open Address Book & Contacts Sync » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Address Book & Contacts Sync » click "UPDATE".
  3. Clear Address Book & Contacts Sync app cache: Clearing cached data will force your app to retrieve the latest data directly from Address Book & Contacts Sync servers.
    1. On Android, goto Settings » Apps » Select "Address Book & Contacts Sync" » click Storage » click "Clear Cache".
  4. Check Address Book & Contacts Sync app permissions. If any of these permissions required to use your device's features are disenabled, Address Book & Contacts Sync might not work.
  5. Uninstall and reinstall Address Book & Contacts Sync. If nothing else has worked, completely uninstall Address Book & Contacts Sync then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Address Book & Contacts Sync not working


2. Fix Address Book & Contacts Sync Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Address Book & Contacts Sync be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Address Book & Contacts Sync not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Address Book & Contacts Sync may not be able to connect to the Internet when running in the background.

Reported Issues