ACCRA, Ghana (AP) — Anita Akpeere prepared fried rice in her kitchen in Ghana’s capital as a flurry of notifications for restaurant orders lit up apps on her phone. “I don’t think I could work without a phone in my line of business,” she said, as requests came in for her signature dish, a traditional fermented dumpling.

Internet-enabled phones have transformed many lives, but they can play a unique role in sub-Saharan Africa, where infrastructure and public services are among the world’s least developed, said Jenny Aker, a professor who studies the issue at Tufts University. At times, technology in Africa has leapfrogged gaps, including providing access to mobile money for people without bank accounts.

Despite growing mobile internet coverage on the continent of 1.3 billion people, just 25% of adults in sub-Saharan Africa have access to it, according to Claire Sibthorpe, head of digital inclusion at the U.K.-based mobile phone lobbying group GSMA. Expense is the main barrier. The cheapest smartphone costs up to 95% of the monthly salary for the poorest 20% of the region’s population, Sibthorpe said.