Toss's "Money 3.0" Gamble: How South Korea's Largest Fintech Is Betting Blockchain on 30 Million Users
Imagine an app that handles the banking, investments, insurance, and payments of nearly 60% of an entire country's population. Now imagine that app quietly filing 24 trademark applications for a homegrown digital currency — and hiring engineers to build its own blockchain. That is what South Korea's Toss has been doing since mid-2025, and the implications reach far beyond one company's product roadmap.
Toss, operated by Viva Republica, is not a crypto-native startup chasing venture capital on a Web3 pitch. It is South Korea's dominant financial super-app, with 30 million registered users, nearly $1.8 billion in 2025 revenue (up 38% year-over-year), and a planned US IPO targeting a $10 billion-plus valuation. When a company of this scale turns toward blockchain, it signals something different from the speculative launches that characterized the last cycle — and it also invites comparison to a cautionary tale that every Korean fintech executive knows by heart.