USSD Special 2021 Yangi is a free Android app developed by Ghost JDev. This app is designed for people who run out of mobile data, minutes, or SMS and want to recharge their mobile accounts quickly. The app provides all USSD codes in one place, making it easier for users to get the services they need.

The app offers several features, including buying packages for minutes, SMS, or internet traffic, checking the remaining balance of minutes, SMS, and internet traffic, and getting the latest information on tariffs and services provided by the company. Users can also change their tariff plans with a single click or call the company's customer support service.

It is important to note that this is an official dealer app, so users can trust the information provided in the app. Overall, USSD Special 2021 Yangi is a convenient and reliable app for mobile users who want to manage their accounts efficiently.