How to avoid from Dog barking ?

Hi !

I've dog and I want to stop my dog from barking. Please suggest me some App and tips to avoid this ?
Is There a High-Pitched Whistle That Will Make Dogs Stop Barking Constantly?

Thanks.

Dogs barking for few reasons:
• To greet people
• Want to go outside
• To get Excited or bored
To stop your Dog from Barking follows these steps:
• Train your Dog at an early stage
• Praise your dog when he doing something good
• When he bark get attention towards you.
By all these you can try to stop your dog from barking
https://www.petsworld.in/blog/how-to-mak...-less.html