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I deleted the app since it was all the time asking me to watch ads in order to give the numbers!!! I downloaded the Numberbook again (might be a newer version) right after And it's not working at all it freezes then I turn it off then delete it then download it many times still not working. I was also asked to delete other apps to dowmload it.! While I have a huge memory card that's free. I downloaded it on Samsung Note 5, it worked !!! They must change their software engineer I guess😕
494 people found this review helpful
Hi, we apologize for any issue you might be having! A new update of the app is available,
if you still have issues send details of what you are experiencing to our customer support at support@numberbook.net? We'll get you up and running.

Zakaria Khaldi
it’s so hard....so hard.....so hard to log into the app. they ask for the phone number when you type the right phone number they said that you have to confirm your account by whatsapp or telegram or call or sms...nothing works I sent several uuchanged messages to their whatsapp inbox. no replay even if I came back to the application nothing confirmed even the call I didn’t received it. and Sms too....Nothing. I will uninstall it until they solve their technical critical problem then we will see.
6 people found this review helpful

Track 961
I have been using this app for more than 7 years. Recently, the app's verification keeps failing with the error (invalid number) when using the native call/sms verification. When using whatsapp or telegram nothing happens and it keeps asking for verification. This is very frustrating. Do not waste your time with this app if you're in Lebanon. Fix this....
60 people found this review helpful