CooTek Participates in 2018 TechCrunch International Innovation Summit

SHENZHEN,China,Dec. 7,2018 -- CooTek (NYSE: CTK),a fast-growing global mobile internet company,was honored to participate in the 2018 TechCrunch International Innovation Summit in Shenzhen,China. CooTek's CEO,Michael Wang,was invited to participate in a panel discussion about innovation on the main stage where he described how CooTek delivers the most relevant content to mobile internet users through its data-driven technology and user-centric products. All of the panelists were former participants of TechCrunch Disrupt Battlefield,a well-known and highly selective innovation competition held by TechCrunch. CooTek was a finalist of TechCrunch Disrupt Battlefield in 2011.

During the discussion,Mr. Wang talked about how CooTek has leveraged its massive global user base and extensive experience in applying big data technology to create a global product portfolio focusing on 5 verticals--fitness,lifestyle,healthcare,news and short videos,and entertainment. Mr. Wang shared how some of the Company's apps are based on a content recommendation system built using CooTek's in-house developed AI technology. These apps include the feminine care app,"Cherry," which provides healthcare consultations,professional content,and a community discussion page for users to learn,discuss,and share information related to menstrual cycles. The fitness app,"Abs Workout," offers relevant professional training plans and videos to help users stay on track and build perfect abs based on the user's goals. The Company's portfolio of apps essentially acts as a content delivery platform that provides the most relevant information to users.

"Technical innovation is playing an important role in terms of how we commercialize our products," commented Mr. Wang. "We are leveraging our deep learning technology developed in-house at our AI Lab to increase monetization of our portfolio products,which contributed approximately 66.6% of total revenue and helped to drive up the effective price per impression by 107% year-on-year in the most recent quarter. We will continue to invest in technology and develop innovative new products that deliver the most relevant information to our users."

About CooTek (Cayman) Inc.

CooTek is a fast-growing global mobile internet company. The mission of CooTek is to empower everyone to express themselves and enjoy relevant content seamlessly. The Company's user-centric and data-driven approach has enabled it to release appealing products to capture mobile internet users' ever-evolving content needs and helps it rapidly attract targeted users. Focusing on 5 verticals of fitness,lifestyle and entertainment,CooTek has developed multiple rapidly growing content-rich portfolio apps with news feed to deliver relevant content.

Safe Harbor Statement

This press release contains forward-looking statements made under the "safe harbor" provisions of Section 21E of the Securities Exchange Act of 1934,as amended,and the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," "confident" and similar statements. CooTek may also make written or oral forward-looking statements in its reports filed with or furnished to the U.S. Securities and Exchange Commission,in its annual report to shareholders,in press releases and other written materials and in oral statements made by its officers,directors or employees to third parties. Any statements that are not historical facts,including statements about CooTek's beliefs and expectations,are forward-looking statements that involve factors,risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Such factors and risks include,but not limited to the following: CooTek's mission and strategies; future business development,financial conditions and results of operations; the expected growth of the mobile internet industry and mobile advertising industry; the expected growth of mobile advertising; expectations regarding demand for and market acceptance of our products and services; competition in mobile application and advertising industry; and relevant government policies and regulations relating to the industry. Further information regarding these and other risks,uncertainties or factors is included in the Company's filings with the U.S. Securities and Exchange Commission. All information provided in this press release is current as of the date of the press release,and CooTek does not undertake any obligation to update such information,except as required under applicable law.

For investor enquiries,please contact:

CooTek (Cayman) Inc.

Jean Zhang

Email:IR@cootek.com

Christensen

In China

Mr. Christian Arnell

+86-10-5900-1548

carnell@christensenir.com

In US

Ms. Linda Bergkamp

+1-480-614-3004

lbergkamp@christensenir.com

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