Is this this coin ping test kit I want or is there somewhere else I should buy it? : r/coins

somebody can help me identify this? srry for bad english : r/coins

Test Gold and Silver Coins Using an App Ping Test to Find Fake Coins

Precious Coin Tester - Apps on Google Play

Silver coin in my change today! : r/coins

Is this real? Mom got it as a Tip : r/coins

Precious Coin Tester - Apps on Google Play

Buy The Pocket Pinger - Coin Ping Tester Online - Pure & Authentic

USA Silver Coin Tester (Morgan, Peace, Franklin, Kennedy, Liberty, Washington, Roosevelt, Mercury, Dollar, Half Dollar, Quarter, Dime) : Arts, Crafts & Sewing

I think this is fake : r/coins

The Pocket Pinger