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Imo (imo), is a cross-platform instant messaging and Voice over IP service owned by YY inc. It allows users to send text messages and voice messages, makes voice and video calls, and shares status which similar to Wechat moment. Imo.im was founded by Georges Harik, one of the earliest google employee, and cofounded by his brother Ralph in 2007. Imo was acquired by a Singapore-based video social networking company Bigo (Bigo was later acquired by YY inc in March 2019). IMO was reported in the first quarter of 2019 YY inc (NASDAQ: YY) financial report, it has connected more than 210 million active users monthly worldwide. 
Audio and video call
Users can make free calls with others in the contacts, the service requires users to provide a standard cellular mobile number.
Users can send messages to other users individually or to groups of up to 100,000 members. Imo supports push technology to provide real-time text, which transmits messages character by character.
Similar to Wechat moment, users can share picture, video and text in their current status.
Users can share photos, videos, audio messages, PDF and other files (up to 1.5 gigabyte in size per file). But Imo does not support location or contact sharing.
Imo Group can have up to 100,000 members.
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- Liz, Sommer (2018-09-24). "IMO APP GUIDE".
- Paul,Fidalgo (2018-01-06). "Messaging app imo passes 500 million downloads".
- Alyson, Shontell (2012-08-13). "One Of Google's First 10 Employees Tells Us What He's Doing Now".
- Robin, Wauters (2013-05-23). "Messaging app maker imo.im raises $13m, bolsters its Android and iOS apps with 'Broadcasts'".
- Jinli,Song (2019-05-29). "China's live streamer YY expects its video conference app Imo to grow into a super app".
- "YY Reports First Quarter 2019 Unaudited Financial Results". 2019-05-28.
- 新浪VR (2019-05-31). "YY李学凌:完成海外用户流闭环布局..." (in 中文).
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- Alex, Dobie (2013-08-27). "Messaging app imo launches video calling".
- moinmoin (2016-07-23). "„imo free video calls and text"-Chat-App für Windows 10 Mobile und WP 8.1".
- Nadeem, Unuth (2019-04-14). "Imo Instant Messenger Review".
- Maham, Mmkhtar (2017-04-17). "WhatsApp Vs IMO: The Complete Comparison".
- 4D Tech Pro (2019-05-03). "How to create imo big group".
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