– Performance in Europe, including #1 in Google Play Store in UK and Canada
-MWC 2025 to spur global soft landing

Global mental wellness startup Bluesignum (CEO Junghyun Yoon) announced that its stress management solution 'Lime AI', which was first launched at MWC (Mobile World Congress) 2025 last March, has shown stable initial performance in the global market, laying the foundation for full-scale global expansion. 'Lime AI' quickly garnered attention by ranking first in the UK and Canada, and second in the US in the new health app category on the Google Play Store immediately after its launch, and has also received positive responses in major European countries such as Spain, France, and Ireland, laying the foundation for global expansion.
This achievement is evaluated as the result of the official announcement and on-site promotional activities at MWC (Mobile World Congress) 2025 held in Barcelona, Spain in March. At the time, ‘Lime AI’ attracted attention as a personalized stress management solution and attracted the attention of global AI and healthcare industry insiders. In particular, it is showing rapid growth, with the number of users exceeding 10,000 in just one month after the service announcement.
“It is encouraging that Lime AI has received a better-than-expected response since its launch, but we still have a long way to go to achieve the impact we are aiming for,” said Yoon Jung-hyun, CEO of Bluesignum. “We will continue to provide users with practical and meaningful services through product quality improvements and continuous research and development.” He added, “We will do our best to ensure that Bluesignum secures a leading position in the global mental health management field.”
Lime AI goes beyond a simple chatbot that repeats responses, and its strength lies in its AI counseling function based on cognitive empathy that analyzes users’ emotions and stress factors in detail and naturally draws them out through conversation. The ‘Stress Report’ provided based on the user’s input diagnoses stress conditions by distinguishing between internal and external factors and suggests management strategies and implementation plans in 32 categories. Recently, the ‘Trend’ function, which visualizes stress changes based on counseling data, has also been officially introduced, helping users understand and manage their psychological changes more easily.
Based on LimeAI’s technological perfection and user experience, Bluesignum is focusing on the US market, focusing on occupations with high stress levels, and is also planning to expand into the B2B market in the future. Lee Sang-ah, Vice President of Bluesignum, said, “LimeAI is seeing high demand in the global market including the US, and we are currently devising a multi-faceted strategy to conquer the US market through various channels, including overseas business trips,” and “We will continue to advance it so that it can be established as an AI solution that can actually reduce the psychological burden on users.”
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