iPhone Screenshots


Do you get spam calls where the phone number looks a lot like yours? Some spammers fake their phone number to try to trick you. ExchangeBlocker stops this trick in its tracks by blocking ALL numbers in your exchange (except for your contacts).

For example, if your phone number is 408-555-1234, ExchangeBlocker will block all calls from 408-555-xxxx, except those in your contacts. It's amazing how many calls get blocked this way.

It does this without requiring a subscription. It doesn't upload your contacts anywhere. It's safe and easy to use.

ExchangeBlocker only works for phone numbers in the US and Canada.

It works with other call blockers, so you can add its protection to anything you already have!

What’s New

Version 1.0.2

Fixed bugs with call blocking and feedback. Improved performance.

Ratings and Reviews

4.2 out of 5
30 Ratings
30 Ratings
Bingoac ,

Don’t want the spoofers getting voicemail message

Please consider directing spoofer calls to a loud gong noise. I set the 6 digits, you sound a gong. Easy. Do not let them hear my voicemail—they get my name etc. Not ideal!

Turnone ,

Work with iOS 12?

Was unable to complete setup step: “enable call blocker” within the phone settings app. App switch was not listed where current SS claims it is.

WTF1235678 ,

Didn’t block

It doesn’t even have access to my allowed numbers . It stopped nothing. It’s sad . iPhone 5s.

Developer Response ,

I’m sorry you did not have a good experience with the app. If you would like help with your problem, please email support@gentlemencoders.com.


Gentlemen Coders, LLC
1.7 MB
Requires iOS 11.2 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2018 Gentlemen Coders, LLC. All rights reserved.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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