The iOS11 bug is fixed. As of today, you can download the new version from the iTunes Store.
Unfortunately iZeeYu is not running properly with iOS11. We are working with high priority to fix that issue.
1. the Email of your friend in your iPhone address book must represent his/her iCloud-account resp. Apple-ID Email AND 2. your friend has the iZeeYu app installed on his/her iPhone THEN his name will pull-up automatically into your iZeeYu address book.
Thanks to our families and friends who helped us. Just to name a few: Kristin, Bettina, Fernando, Natalia, Jun, Gonzalo, Fei Fei, Chrisy, Meixia, Chong, Valentina, ... Melanie and Pati.
Our new iOS app iZeeYu will be release soon. May be today!?