such as Digital Radios, GPS devices, netbooks, tablets, and video cameras, and in September 2011 began selling complementary products from a range of brands including Apple, Canon, Nikon, Samsung, Motorola and others. Kogan achieved 3 million in sales in its third year, followed by 8 million in year four, 22 million in year five, 70 million in year six, and over 200 million in the seventh year. In 2013 The Wall Street Journal speculated that Kogan was worth over 400 million. More than two million products were delivered by Kogan.com, with daily sales of more than 1 million. Having started with no external funding or capital, as of 2011, Kogan.com has grown to become one of Australia's fastest-growing businesses in any industry. Open source Kogan has been a strong believer in open-source solutions for many years, telling Computerworld: "We are huge believers in cloud computing and open-source software. The reasons are simple: open-source software is usually faster, better and has more features." Kogan believes that open-source tablets like Android present a significant challenge to the Apple iPad's dominance of the tablet market, and was the first to launch an open-source tablet in the UK for under £100. In Australia, he launched a laptop running the open-source version of Google's ChromeOS before multinationals like Samsung and Acer could launch their own products. Criticism Kogan is known for using social media to take a swipe at his competitors and has been accused of making 'outlandish statements' through his company's blog about giant retailers like JB Hi-Fi. At Kickstart Forum 2008, in Gold Coast Australia, Kogan was called a 'loudmouthed punk', when he said the future of retail was heading online. On International Transgender Day of Visibility in 2018, Kogan was asked to apologise after a transphobic tweet referencing the 2018 Australian ball-tampering scandal and Caitlyn Jenner. Personal life Kogan was the first Australian to register as a passenger on Richard Branson's Virgin Galactic sub-orbital spaceflight, having paid a deposit on the 200,000 ticket. Kogan and his wife, Anastasia, reside in Melbourne, Victoria, Australia. Personal wealth Kogan's net worth was estimated to be 575 million, listed on the Financial Review 2020 Rich List. Kogan did not reach the threshold for inclusion on the 2021 Rich List. Achievement lists Kogan and his company Kogan.com have been listed on the following: The Age Top 100 most influential people in 2008 BRW 2009 Fast Starters list