Tether (USDT) vs. Ripple USD (RLUSD)

  • Tether is the world’s top stablecoin, and it’s widely used across the biggest blockchains.

  • Ripple USD mainly operates within its own blockchain, but it’s useful for certain tasks.

  • Both stablecoins should stay pegged to the U.S. dollar, but one is a safer buy.

  • 10 stocks we like better than Tether ›

Stablecoins are often considered safer alternatives to volatile cryptocurrencies like Bitcoin (CRYPTO: BTC). They’re usually pegged to a fiat currency like the U.S. dollar. They can be held without a bank account, be used for faster and cheaper cross-border transfers, and help people preserve their capital in countries plagued by hyperinflation.

They’re not designed to beat the market over the long term, but they can earn higher yields than traditional savings accounts across centralized and decentralized finance (DeFi) platforms. They can also fund payments on decentralized apps (dApps) across various blockchains.

Image source: Getty Images.

The world’s largest stablecoins are all pegged to the U.S. dollar. At first glance, they might look identical because they’re all trading at $1 a token. But if we dig deeper, we’ll see that they’re backed by different assets and integrated into different ecosystems. Let’s review two of those popular stablecoins — Tether (CRYPTO: USDT) and Ripple USD (CRYPTO: RLUSD) — and see how their differences might make them more or less appealing to certain investors.

Tether, with a market cap of $183.5 billion, is the world’s most valuable stablecoin. It was launched by Tether Limited, a subsidiary of Hong Kong-based iFinex (which also owns the Bitfinex cryptocurrency exchange), in 2014. It was initially minted on Bitcoin’s blockchain, subsequently minted as an ERC-20 token on Ethereum‘s (CRYPTO: ETH) blockchain, and minted across other smaller blockchains as it was more widely accepted.

Ripple USD, with a market cap of $1 billion, ranks a distant ninth in the stablecoin race. It was launched by fintech company Ripple Labs, whose founders also created the XRP (CRYPTO: XRP) cryptocurrency, in 2024. It was pre-mined natively on the XRP Ledger.

Tether is more broadly used on DeFi platforms and dApps than Ripple USD. Ripple’s XRP Ledger isn’t natively compatible with Ethereum and other popular blockchains, so Ripple USD is still primarily used for money transfers within Ripple’s own payment platform.

Ripple USD is also often used as a “bridge currency” for fiat currency transfers. Instead of directly converting fiat currencies into each other — which can be slow, expensive, and inefficient — both fiat currencies are simply converted to Ripple USD (as a bridge) and converted back to their original currencies.

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