End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://ketabsara.co/Product/3204/نظریه-ی-کارها-(داستان-نوآوری-و-انتخاب-مشتری)