Hello, ææº! Thanks for your response. We appreciate the valuable information you provide. We will check again and fix bugs (if any) in the latest update. We look forward to hearing from you in the future.
Hi, aueki fg. In this case, we think you should use it in tandem with an iPhone device to be able to calibrate the sound on your Android device. We have calibrated the Decibel X application on iPhone based on the results on professional audio measuring devices. (You can "Calibration" in the tab "Setting" on the app).