Number Guru – Reverse Phone & Caller Lookup review

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User Reviews
Number Guru - Reverse Phone & Caller Lookup

Kiss your your unlisted phone number privileges goodbye. NumberGuru has released an iPhone app which lets you perform reverse phone number searches for any number in the US for free. While there are many services for doing a reverse phone number lookup on the iPhone, until now you would have to pay to search and get details on unlisted numbers. Normally services like this will charge you either a monthly fee or a one time fee to reveal the identity of phone numbers that are either unlisted or undisclosed. Now with the free NumberGuru app you can type in any phone number and identify the Name, Service Provider and City of the customer in the NumberGuru database. And the results are wickedly accurate.

I tested the app using 4 different types of numbers. First was a listed business phone number, and it returned the name of the company and its location. The second was an unlisted home phone number from Verizon which to my surprise, also returned the name of the individual along with the location and carrier.

Number Guru - Reverse Phone & Caller Lookup

The third test I did was for an 800 number for a toll free number of a known spam caller found at and unfortunately, Number Guru did not identify the number this time. The app seems to have very little success with toll free numbers in general. Another great feature in the app is the integration of Spam Score, which pulls in comments from sites like from around the web into the app. You can even type in your own comments on a phone number and mark it as a Spammer for others to see.

The last one was a mobile iPhone number for ATT with unlisted number turned on, and amazingly, NumberGuru returned the name and carrier of the individual, along with the location. This time however the carrier was not correct, although the other two pieces of information were spot on.

The app has a feature that can look through your iPhone contacts and find out the information about the phone numbers you have, if you allow it to do so. The history tab keeps a list of the lookups you’ve performed. Once you find a result you can either add the number to your iPhone Contacts app, or call/text the number directly from NumberGuru.

Number Guru - Reverse Phone & Caller Lookup

In short, you need to get the NumberGuru app. As always the app makes you agree to the “as is, no guarantee” terms before use, so take that into account when viewing the results. It just plain works and will give you the info you want without having to pay a search fee. Use the NumberGuru app to reveal the identity of unsolicited spam callers. I also recommend looking up your own phone numbers to find out what information is available about you to the public now, thanks to this iPhone app. Now maybe a good time to call up your phone company and stop paying those “unlisted number” fees. The NumberGuru app is also available to Android users.

AppSafari Rating: 4/5

This 3rd Party App is available at the Apple iTunes AppStore. Browse the full list of all AppStore apps filed under the AppStore category.

Download Number Guru – Reverse Phone & Caller Lookup at iTunes App Store
Price: Free
Version: 1.0.1
Size: 2.06 MB

App Review By Joe Seifi Posted on May 27th, 2011 and filed under App Store, Free, Phone, Reference, Search (Viewed 4866 times, 3 so far today). Need help on using these apps? Please read the Help Page.

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4 Reviews on “Number Guru – Reverse Phone & Caller Lookup”

  1. 1
    summer houses says:

    Great app, I use this on the occasion that a company calls me or sends spam text.

  2. 2
    Amanda says:

    So instead of charging money for what once was a great app you all decide it’s a much better idea to keep your app free and make it completely useless. ???? Where is your brain?
    Although- I do use it on my computer to see spam number as that is really the only useful aspect of this now. How sad.

  3. 3
    Richard says:

    I am looking for an app that does a reverse lookup when the phone rings and if it knows the caller (from the contacts file) , it brings up the info from contacts, and a place to enter a time and date in the calendar as an “appointment” as the phone call is in progress.

  4. 4
    gabriel says:

    There is an iPhone App that finds out who’s calling you BEFORE you answer the phone…

    Just wanted to inform you about our brand new Utility App for iPhone called RingRing.

    It’s the first iPhone App ever that finds out who’s calling you before you answer the phone (even if the screen is locked via VoiceOver).
    Every time you get a phone call and you don’t know whose number it is, RingRing will automatically look it up for you in the web. Then it will send you a notification (or tell you via VoiceOver/Siri) and thus help you to decide if you should answer the phone call or not.

    RingRing will remember your current GPS location by request and assign it to your conversation so that you can actually prove, that you have been at a certain place during a particular phone call.

    I’m the developer, so you can reach me anytime… thank you!



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