Dog Whistle 2 (Titanium) is a free lifestyle app available on Android 9.0. Developed by lrx, it is designed to help you train and coach your dog with different frequencies for each command. The app generates frequencies from 500 up to 12,000Hz if equipped with HD audio.

The app is easy to use, simply download it and tap on the whistle to start using it. The app is perfect for anyone who wants to try to retrieve their dog or train them with different frequencies.

Overall, Dog Whistle 2 Titanium is a useful app for dog owners who want to train their dogs. It is easy to use and offers a range of different frequencies for each command. If you are looking for an app to help you train your dog, Dog Whistle 2 Titanium is definitely worth trying out. Don't forget to rate the app if you enjoy using it!