Good but bad if they update – Spectrum Analyzer: Sound Wave Review

I bought the full spectrum analyzer and then something happened where I didn't have the full version anymore which forced me to buy it again. Which I did. Guess what happened again?! Had to buy it again to use the full features. Decided not to because they don't deserve my money each time they update the app. Thanks, but no thanks.
Review by MaxwellKlein on Spectrum Analyzer: Sound Wave.