Idea was an Indian mobile network operator based out of Mumbai, Maharashtra. It was a pan-India integrated GSM operator and had 220.00 million subscribers back in June 2018. It started the production of Android-based smartphones to create products for its 3G data plans. These phones came bundled with an Idea SIM. The company also partnered with companies such as Microsoft to offer carrier billing on purchase of apps. Idea Cellular merged with Vodafone India in 2018 and is now known as Vodafone Idea or Vi.