StellarCloud Launches Unified Web3 Operating System, Aiming to Bring 500 Million Users On-Chain by 2028

A New Gateway to the Decentralized Web

StellarCloud, the San Francisco-based infrastructure startup backed by Sequoia Capital and a16z, unveiled Helios OS on September 28th — what it calls the first "mainstream-ready" Web3 operating system. The platform bundles a non-custodial wallet, identity layer, and dApp storefront into a single interface that works like any traditional app. Users sign in with an email and biometric PIN. No seed phrases. No gas fees visible to end users. No jargon.

The company says Helios is built on top of Ethereum L2 networks zkSync and Base, as well as Solana, automatically routing transactions to whichever chain offers the lowest cost and fastest confirmation at any given moment. "We spent three years building the plumbing nobody wanted to think about," said StellarCloud CEO Lin Mei during the launch keynote. "Our goal is to make Web3 feel about as exciting as downloading a new app."

Early partners include streaming platform SoundFrame, which will integrate Helios for creator payouts; gaming studio Vaultborne, which plans to run in-game economies through the system; and DeFi protocol FlowBank, which will serve as Helios's default on-ramp for fiat-to-crypto conversions. SoundFrame alone has 12 million active users, giving Helios an immediate user base to target.

The wallet abstraction layer is powered by a novel multi-party computation (MPC) scheme StellarCloud developed in-house, which the company claims eliminates single points of failure common to traditional multisig setups. Internal stress tests, reviewed by Trail of Bits, reportedly handled 2.3 million concurrent sessions without a single key-recovery failure.

Pricing is tiered: a free tier supports up to 50 transactions per month. Helios Pro, priced at $9.99/month, removes the transaction cap and adds portfolio analytics and API access for developers. Enterprise licensing — covering white-label deployments for brands — starts at $50,000 annually.

StellarCloud reports that over 800,000 users enrolled in the Helios beta over the past six months, generating $4.2 million in transaction volume on the platform. The company is targeting 100 million Helios accounts by the end of 2027, and has penciled in an IPO for Q2 2028.

Industry analysts are watching closely. "If Helios can actually convert even 10% of its target audience, it's a meaningful shift," said analyst Priya Nair at Bernstein Digital. "The UX gap has been the biggest wall between crypto and mass adoption. This is a serious attempt to tear it down."

The platform is available now in public beta on web, iOS, and Android. Developers can access the Helios SDK via GitHub under an Apache 2.0 license.