Published by Master App Solutions

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Hello! My name is John. I’m here to help you resolve any issues you may be experiencing. Can you please describe the problem you’re having with Numbo Caller ID & Call Blocker?



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What users are saying

1. HELPFUL, it's not as convenient however, instead of apps I get Reverse Number Lookup websites (some with Spam & Scam capabilities on Google Chrome, Bookmark the websites & look at numbers on myI've only had it for one day so far is very good I will give another update at a later time the only thing I wonder about right now that this time is why does on my homescreen on the app the number one stage on the app I go in my calls or the same the blocked calls that there's no new calls at that time when the number one is on the app I can understand why that is like thatOne if the worst apps I ever had .

2. What do they do "copy" other sites Spam, Scam, Risky Telemarketer numbers when they get the chance to? I think I'm at 0 of 35 for Reverse Number Lookups while I've had it.

3. So I couldn't open the app! I'll install it again when yall fix this issueIt doesnt work i have blocked all kinds of spam calls n they havent stopped calling or textingJust installed.

4. Numbo Caller ID & Call ... is one of the worst Caller ID, Reverse Number Lookup apps or sites I've ever used.

5. Looks like a great app so far.It made lose a good job.

6. Don't waste your time.

7. It would mess you up no matter who or what you were doing.

8. Easy setup.

9. The moment I got it, it said there is a bug for this app.

10. My not getting that job did it fir me.

11. Now I want a refund.calls constantly during the dayIts A Really Dependable Call Blocker AppThis app does what it says.

Steps to Troubleshoot & Fix Numbo Caller ID & Call Blocker Issues

1. Fix Numbo Caller ID & Call Blocker Not Working/Crashes/Errors/Unresponsive & Black/White screen:


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


2. Fix Numbo Caller ID & Call Blocker Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Numbo Caller ID & Call Blocker 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 Numbo Caller ID & Call Blocker not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Numbo Caller ID & Call Blocker may not be able to connect to the Internet when running in the background.

Reported Issues

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