Yigit Taha OZTURK 
Privacy-enhancing cryptography just got more powerful — and portable. StarkWare has launched STARK Two (S-two), a next-generation zero-knowledge (ZK) prover that enables users to generate complex proofs directly on their devices. The move promises to bring ZK technology into daily digital life, from private payments to verifiable AI.
Local Proof Generation Comes to Phones and Laptops
STARK Two is now available in public alpha, with full Starknet integration planned for later this year. According to StarkWare, the prover runs on CPUs, GPUs, and soon even browsers, allowing everyday users to prove sensitive information without revealing it.
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Eli Ben-Sasson, CEO of StarkWare, said, “The prover used to be our magic wand — now it’s a lightsaber in your pocket.”
39x Performance Boost for Real-World Use Cases
Benchmark tests revealed that S-two is 39 times faster than previous ZK provers. This performance unlocks privacy-preserving applications in identity, payments, messaging, and onchain salaries — all without exposing sensitive data.
StarkWare emphasized that verifiable execution proofs can also be generated offline — a game-changer for industries like gaming, where players can prove achievements post-session without constant online connectivity.
Industry Adoption Already Underway
Developers are already integrating S-two. Kakarot uses it in ETHProofs, Nexus is aligning RISC-V traces, and ZAN along with AntChain OpenLabs are accelerating the prover via GPU enhancements. StarkWare stated that hardware-agnostic architecture is central to its vision of mainstream ZK adoption.
COO Oren Katz added, “You can now prove a valid payment without revealing your balance, or verify your ID without exposing personal details. That’s a major leap toward real-world ZK utility.”
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