Acoustic Debit Card for Africa
Written byJennifer Brea
Olivier Gabirault writes [Fr] about Maâtcard, an acoustic, prepayed debit card for developing countries which will debut in Cameroon next April. The Maâtcard functions like a normal credit card, but also emits a unique, unfalsifiable sound, enabling users to securely make payments, buy air time, or transfer funds by telephone.
Written byJennifer Brea
