Jack the beat maker app

It was only a dollar but I feel robbed. I was looking for a different workflow from machine, DM1, ElasticDrums, etc... I could excuse the lack of editing options, separate volume controls, and limited sounds if it was a responsive drum machine!!! I am a drummer and am no stranger to metronomes or turning off the quantization option to play freely. I have an iPhone 6s. Response time lags - this is inexcusable of you to charge for this piss poor implementation of what could have been neat and quirky like frum. Refund me if you plan on making this ghostware. At the very least, make this responsive like an actual drum machine!!! As it stands, I do not trust your apps. Fix this or give me that dollar back and I will be quiet. How dare you make people pay for this!!! You can get away with this on android systems, not iOS! You are the first negative review I ever posted out of the many years on this App Store. Also keep in mind, if you decide to respond or have someone respond on your behalf, choose your words carefully. It would not be good to have bad word spread about your app making capabilities.