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://pdf-doc.ir/product/17448/طرح-درس-روزانه-ریاضی-اول-ابتدایی-الگوی-عددی-و-هندسی-تم-18-/7413