The Pocket Pinger + Stack Stick, Coin Ping Test (Black, 1 Pack) + StackerTools App

This device along with the great free app you have access too, is the surest way to me to tell if your silver is real or fake. I tested about 300oz of junk silver using this and had no issues. Worked great, and feel very good about my stack being legit. A negative i did have is using and testing Mercury and Roosevelt 90% Dimes. Although i was able to mostly tell if my coins i had were real or not. It took several pings to register and some coins failing for no reason (not fake-confirmed) It looks like this is still in a beta stage on the app, but i hope they urgently fix this and get it working for Dimes 100%.

Can’t say enough good things about stacker tools. The equipment and application gives me total peace of mind, it works flawlessly every time. The app is fantastic and their customer service is top notch, they even respond on the weekends. Most importantly it helps me verify real silver and gold coins when I’m buying, no more worries about fakes. I highly recommend!!!!

Arrived directly from the manufacturer via USPS. Packaged well. Included the device itself with one set of rubber caps attached. 2 additional sets included. Downloaded the software for this device onto my iPhone. The pinger comes with a password that's required to do sound testing. Tested two American Silver Eagles. One real, one fake. Real one tested 5 of 5 on frequencies established for this coin. Tapped the fake couple of times and it failed the test. Ironically, the fake Chinese version passed my weight and size test which is unusual for fakes, so this pinger is definitely worth the money.

Heard about this from Yankee Stacking. It's a simple device with an idiot-proof but comprehensive app with a wide selection of testable coins. Initially many coins were locked to me on the app but they became available when I entered a code that was included with my purchase. All my coins were validated, which I expected, but I wish I had a counterfeit coin to test and be that much more confident in the process. Between the pinger, the app's size charts, and a weight scale, I feel confident enough in my coins that I don't need to buy a more expensive analyzer. Finally, I will give you 5 stars when you include a wider/more comfortable grip. Some of us have thousands of coins to test in our stacks and hundreds more coming. I was getting thumb and forefinger fatigue on the small, hard handles of the pinger.

This product works amazingly well. And for the price it is a true bargain. Just be sure you really use it properly. In order to do so you will need a good scale and a caliper so that you can be precise in the information you feed into the iPhone ap that goes with it. If you weigh and measure carefully it works every time. Very pleased.

With all the volatility in the silver market, this tool is a must for any collector/stacker! As prices go up, so will counterfeits. This is one tool everyone should have as a quick and simple first test, in addition to other testing methods. Highly recommended!

I've tried the app on 3 Canadian Maple Leaf coins so far and there were no issues and all 3 have tested A-OK, but looking forward to getting into the YouTube training videos when I can! :-)

I got one for me and one for my cousin. It actually came with 2 fake coins as an added and unexpected bonus! After signing up on the app and unlocking the bonus password I have access to alot of coin types for free. I tested a 1 oz Britannia and it passed the ping test almost immediately. The coin size on the screen was precise. Great product and fun to use. Also made in USA!