• Nigerian entrepreneur Sunday Paul Adah co-founded and leads Radius, a cross-border payments platform for international students.
• Radius enables same-day payments for tuition, visas, exams, and housing while avoiding traditional international transfer constraints.
• The platform launched in 2022 and operates with real-time tracking and competitive exchange rates.

Sunday Paul Adah, a Nigerian entrepreneur based in Boise, United States, co-founded and leads Radius, formerly known as Pay4Me App, a payment platform designed to simplify financial procedures for international students who must pay fees to foreign schools, institutions, or organizations.

Founded in 2022, Radius enables users to pay tuition, visa fees, examination costs, and housing expenses while avoiding constraints linked to traditional international bank transfers. The mobile application allows users to execute same-day payments and monitor transactions in real time, which increases transparency and reduces uncertainty.

The platform integrates currency management tools that offer competitive exchange rates, which remain critical for cross-border payments. Radius also emphasizes a user-friendly interface and provides 24/7 customer support to assist students throughout every step of their education-related financial processes.

In parallel, Sunday Paul Adah founded Across The Horizon in 2015, a study-abroad consulting firm that supports African students and families in identifying affordable international education opportunities. He also founded Scholarships Africa in 2020, a platform dedicated to identifying and applying for international scholarship programs.

Sunday Paul Adah earned a bachelor’s degree in multidisciplinary studies from Boise State University in 2021. He also holds a master’s degree in public administration, government, and politics from Grand Canyon University, obtained in 2023, as well as a master’s degree in entrepreneurship from the David Eccles School of Business at the University of Utah, completed in 2025.

This article was initially published in French by Melchior Koba

Adapted in English by Ange J.A de BERRY QUENUM