How to Build a Viral Super App

Gour Lentell is the founder of Moya, a South African "super app" that has grown to over six and a half million daily active users with zero marketing spend. In this Sybrin Game Changers conversation with Colin Iles, Gour explains how Moya uses mobile network reverse billing to make chat, content, and payments entirely data-free, and why he deliberately built the business to avoid the advertising trap that most digital platforms fall into.

Data-free, not data-cheap: how Moya actually works

Moya is built on a technology called mobile network reverse billing, where the mobile network zero-rates access and bills the content provider instead of the user, the same principle as a toll-free phone call applied to data. Gour first encountered the concept in 2015 when Indian mobile network Airtel launched Airtel Zero, and Moya has since built cloud technology to manage, secure, and measure reverse billing at scale. Moya users can chat, read news, browse over 300 content services, and use core app functions with no data cost at all, since Moya pays the data bill to the networks on the user's behalf. Text chat is fully data-free, but images, videos, and attachments carry a data cost the app clearly flags before downloading.

From near-death to six million users: the founder's third startup

Moya is Gour's third startup. The company behind it, originally founded in 2008 and previously trading as Bainu, was close to shutting down entirely around 2015-16, with no employees and only some working technology left. Gour had already run two earlier internet startups from Sydney, both acquired within a few years of launch, before pivoting the reverse-billing idea into what became Moya. He deliberately chose to launch first in South Africa rather than Australia or the US, citing language familiarity, his own background growing up in Zimbabwe, and South Africa's position as the continent's biggest economy. The company is now 12 to 13 years old, but Gour still describes it internally as a startup, having grown Moya to over six and a half million active users entirely through organic, viral growth with no paid user acquisition.

Beyond advertising: how Moya actually makes money

Moya's revenue model was deliberately built to avoid what Gour calls the advertising trap, where only Google and Facebook capture most of the value and everyone else is "picking up the breadcrumbs." Instead, enterprises pay Moya's data costs to host their own content or websites inside the app, a model proven by a Shoprite case study: a free 22-hour proof of concept put the Shoprite website inside Moya, data-free, and drove 62,500 individual visitors with no ads and no clicks, at a lower cost per engaged user than Google or Facebook. Beyond that data-hosting revenue, Moya runs a business chatbot API, a market research panel of over 200,000 profiled users used by research companies and government agencies, and Moya Pay, a mobile wallet Gour expects will ultimately be Moya's biggest revenue line.

Moya Pay: undercutting South African banking, not replacing it

Moya Pay is a compliant mobile wallet, not a licensed bank, with money held in treasury accounts at partner banks and full compliance with South African Reserve Bank requirements. Users can receive salaries directly into the wallet, hold a linked prepaid Mastercard issued with Access Bank, and pay or get paid via QR code, including from other banking apps like FNB Pay and Absa Pay, for a standard merchant fee of 1 percent. Gour is blunt about why he built it: he found South African banking shockingly expensive compared to the free accounts he had in Australia and the UK, and argues the country's problem is not that people are unbanked but underbanked, holding accounts they avoid using because of fees. His benchmark is WeChat Pay in China, where roughly 900 million people transact at minimal cost, with 70 percent of all transactions in the Chinese economy now happening on mobile wallets.

Why did WeChat fail in South Africa when Moya succeeded?

Gour argues WeChat's South African product was never as good as WhatsApp's chat experience and included features, like its wallet, that local users did not understand or value, so it never built network effect against WhatsApp's dominance. Moya took the opposite approach: it didn't try to out-feature WhatsApp, it simply added one advantage, data-free access, and let word of mouth do the rest. Gour is explicit that Moya has never paid to acquire users through bribes or discounted data bundles; growth has been purely viral because the value proposition is clear enough that users tell their own friends and family.

Is Moya Pay a bank account?

No. Gour is explicit that Moya Pay is not a licensed, deposit-taking bank and does not offer loans or interest. Funds sit in treasury accounts at partner banks, and Moya meets South African Reserve Bank compliance requirements through those banking partners, including proper KYC checks on registration. The pitch is that it offers most of a bank account's practical functions, receiving money, storing it, paying by QR code or a linked prepaid Mastercard, without the account fees Gour says make South African banking unusually expensive.

Will Moya expand beyond South Africa or onto iOS?

Gour is deliberately not expanding Moya itself into other African markets, arguing the app needs network effect and scale within one market to stay relevant, and South Africa remains the sole focus. An iOS version was in testing at the time of the conversation, expected within weeks, since Gour considers iPhone support necessary for full network effect even though iPhones represent only 10 to 15 percent of the market. The underlying B2B reverse-billing software, separate from the Moya consumer app, is more geography-agnostic and already sold to enterprises as a standalone product.