Cash slide

About Cash slide

NBT Inc. is a South Korean ad-tech company founded in 2012 by CEO Park Su-geun. Park, a Seoul National University business graduate, gained early startup experience before working at the Boston Consulting Group (BCG). Feeling constrained and wanting to create the "Next Big Thing," the inspiration for NBT's name, he and two colleagues from BCG left to establish the company.

NBT launched its flagship product, Cashslide, in November 2012, pioneering the concept of a mobile lock screen rewards application. This service allows users to earn points, redeemable for goods, by interacting with advertisements and content on their smartphone's lock screen. The platform quickly gained traction, reaching one million users within its first year and growing to 27 million by 2020. The company's business model is centered on mobile point advertising, where it generates revenue by connecting advertisers with users who are rewarded for engagement.

Expanding beyond its initial success, NBT developed a B2B offerwall solution, "Addison Offerwall," in 2018. An offerwall is an in-app advertising unit that rewards users with virtual currency for completing tasks like watching videos or installing apps. Addison has become a leading offerwall network in South Korea, partnering with major domestic services like Naver Webtoon, Naver Pay, Kakao T, and Toss. The company has also diversified its portfolio with other services, including the pedometer rewards app "Cashslide Stepup" (2017), the content rewards app "Cashfeed" (2019), and the app-tech service "Chips" (2022). In March 2025, it was announced that Nudge Healthcare would acquire NBT.

NBT Inc. was listed on the KOSDAQ market on January 21, 2021. The company has pursued growth through acquisitions, including Re-end Company and Friday 6 O'clock in 2021. It has also expanded internationally, establishing subsidiaries in the US and China and launching services like "CASH TREE" in Thailand and "coohua" in China.