There are in-app purchases and ads in this application. Samsung and LG users recommend the app. Download the .apk file of Dog Whistler 2.3.18 for free and take a look at users' reviews on Droid Informer. The installation package requires 17 MB of disk space and it works flawlessly on Android 4.1 and above.
The antivirus report demonstrates that the app is completely safe.
In users’ view, the benefit of this application is a decent interface, however, some people indicate that the weak point of Dog Whistler is banner ads at the bottom.