Crypto infrastructure company Startale Group has integrated Sunnyside Labs' Privacy Boost into its Startale App on Soneium, the Sony-linked blockchain network, adding self-custodial private transfer features including shielded balances, private peer-to-peer transfers, and privacy-enabled payment flows. The announcement marks a significant addition to the Soneium ecosystem, which combines Sony's brand infrastructure with blockchain technology, as the platform attempts to give users meaningful control over their visible on-chain activity without abandoning the compliance mechanisms that regulated applications require. Sunnyside Labs co-founder and CEO Taem Park described the integration's selective auditability model as analogous to traditional banking: transaction details remain hidden from the public while authorized service operators can review them through a feature called Audit View, allowing AML and regulatory obligations to be met without requiring all user activity to be publicly transparent.The integration distinguishes itself from privacy tools that obscure transactions from everyone including the operator, a design choice Park frames as a fundamentally different architecture.

Users of the Startale App will be able to conduct shielded transactions that are not visible on the public blockchain while the operator retains the ability to review those records for compliance purposes when required. The practical tradeoff is that users are relying not only on cryptography but also on Sunnyside Labs' controls around when and how shielded transaction records can be accessed, a distinction that matters for users evaluating how much trust they are placing in the platform versus the underlying technology. The integration adds a consumer privacy layer to a blockchain ecosystem that is positioned at the intersection of consumer technology and regulated finance through Sony's involvement.