• Senegalese entrepreneur Stéphane Mancabo co-founded Yello to shift baccalaureate revision toward daily, low-pressure learning.
• The Yello app offers offline-accessible, modular content and uses gamification to encourage consistency.
• Founded in 2023, the startup targets structural gaps in exam preparation through digital tools.

Stéphane Mancabo, a Senegalese entrepreneur, serves as co-founder and chief executive officer of Yello. The startup aims to turn baccalaureate preparation into a daily process that feels simpler, smoother, and less anxiety-inducing for high school students.

Founded in 2023, Yello operates as an educational application that delivers structured content designed around students’ real-life constraints. The platform provides audio lessons, written texts, and concise summaries, allowing users to choose learning formats that suit their preferences. The company designs the content to improve comprehension, reduce technical jargon, and guide students progressively toward baccalaureate requirements.

Students can download courses, which allows them to revise without continuous internet access. Yello avoids intensive or overwhelming study methods and instead emphasizes gradual learning. The app organizes content into short, targeted modules that focus on specific concepts rather than entire chapters. This structure seeks to establish steady progress without making students feel overloaded.

Yello uses reminder notifications to structure students’ work and encourage continuous revision rather than last-minute cramming. The application also integrates gamification features. Users earn points, unlock progress badges, and rank on national or school-level leaderboards. The system includes rewards and prizes designed to recognize consistency and sustained engagement.

On the academic and professional front, Stéphane Mancabo earned a bachelor’s degree in microfinance in 2018 from the Catholic University of West Africa (UCAO) in Cameroon. He began his career in 2017 as business development director at T’es de Dakar (TDD), a digital media outlet.

From 2020 to 2021, he worked as production project manager at Walabok Studio. At the same time, he appeared as a technology news presenter on Télévision Futur Média. He later joined WURUS LAB, an audiovisual production company, where he served as production director until 2023.

This article was initially published in French by Melchior Koba

Adapted in English by Ange Jason Quenum