Startale App Integrates Privacy Boost for Soneium

Startale Group has selected Privacy Boost from Sunnyside Labs as the official privacy partner for its Startale App, integrating self-custodial privacy features directly into the consumer gateway for Soneium, a blockchain network co-developed by Sony Block Solutions Labs.

The partnership introduces shielded asset balances, private peer-to-peer transfers and privacy-preserving payment flows on Soneium. Users retain control of their private keys while opting into privacy for specific transactions, addressing the default visibility of balances, transfer amounts and counterparties on public blockchains. Privacy Boost deploys natively on Soneium with its full protocol stack, including smart contracts and trusted execution environment infrastructure, and integrates via software development kit into the Startale App. The technology combines zero-knowledge proofs with trusted execution environments to achieve sub-500 millisecond proof generation and throughput exceeding 1,800 transactions per second.

This marks the first consumer-facing integration for Privacy Boost, transitioning it from infrastructure to end-user tools. The Startale App, designed for mainstream access to the on-chain...