Load-shedding notification application EskomSePush has seen its number of users grow from 2,500 to more than 400,000 in a week, according to co-founder Herman Maritz.
This follows Eskom's implementation of stage 4 load-shedding - for the first time in history - on Monday.
Business Insider reports EskomSePush is now the most downloaded application on the South African iOS App store, and the second-most downloaded application, behind WhatsApp, in the South African Google Play store.