Rain operates in two distinct sectors.

The first is a South African telecommunications company, Rain (Pty) Ltd, established in 2018. It specializes in mobile communications, offering voice, messaging, and data services, with a strong focus on data-only mobile connectivity. Rain operates its own cell towers and collaborates with major telecom operators like Vodacom and MTN. The company is known for launching South Africa's first standalone 5G network and provides 4G, LTE, and 5G services primarily in metropolitan areas. Rain's business model includes online profile creation and SIM card delivery.

The second entity is a U.S.-based financial services company that provides an Earned Wage Access (EWA) solution. This service allows employees to access a portion of their earned wages before payday, offered as a voluntary benefit through employer partnerships. Rain's platform integrates with payroll and human capital management systems, focusing on transparency and financial wellness. The company serves over 2 million users and partners with more than 1,200 employers, including well-known brands like McDonalds and Hilton. Services include free ACH transfers and instant transfers for a small fee.