Fluidkey, the self-custodial wallet built around stealth address technology, has added BNB Chain to its roster of supported networks. The integration, shipped in iOS app version 1.68.0 on June 12, makes BNB Chain the seventh EVM-compatible blockchain where users can receive funds into unlinkable addresses and convert them into bank transfers.

Fluidkey combines two pieces of infrastructure: stealth addresses and Safe smart accounts. The stealth address layer handles privacy. Safe smart accounts handle custody and programmability. The result is a self-custodial setup where the user controls funds that the public blockchain can’t easily attribute to them.

With the BNB Chain addition, Fluidkey now operates across Ethereum, Arbitrum, Base, Polygon, Optimism, Gnosis, and BSC. Through an existing bridge integration, Fluidkey supports bank transfers using ACH for US dollar transactions and SEPA/IBAN for euro transactions. Those transfers settle in USDC or EURC.

Fluidkey has facilitated over $840 million in transfers to date across its supported networks. The app serves more than 24,000 users as of June 2026. $840 million across 24,000 users works out to roughly $35,000 per user on average.

Beyond single-chain transactions, Fluidkey also supports cross-chain deposits via Near Intents. Users can send BTC, USDC, and USDT from 10 additional chains and have those funds arrive in a stealth address on any of Fluidkey’s seven supported networks.

The risk, as always with privacy tools, is regulatory. Stealth addresses are technically distinct from mixing protocols, but regulators have not always been precise in their distinctions. Any enforcement action targeting stealth address technology broadly could create headwinds for Fluidkey and similar projects. Investors watching this space should track not just user growth and transfer volume but also how regulators in the US and EU classify stealth address wallets relative to existing anti-money-laundering frameworks.