Solana Mobile has announced CLOCK IN, a 30-day hackathon offering $135,000 in prizes for developers building applications on the Solana network. The competition targets mobile-first builders working with the Seeker Android device and the platform’s dApp Store, continuing a pattern of increasingly ambitious developer incentives from the Solana Mobile team.
The prize structure rewards ten grand prize winners with $10,000 each, five honorable mentions at $5,000 apiece, and a separate $10,000 SKR bonus for the best integration with the Solana Mobile Stack. Beyond cash, winners also receive Seeker devices, prominent placement in the dApp Store, marketing support, and one-on-one consultations with Solana co-founder Anatoly Yakovenko.
Building on a track record
This is not Solana Mobile’s first rodeo with developer competitions. The first hackathon ran in 2025 with a $100,000 prize pool, and the second event, called MONOLITH, drew 403 submissions from teams across 66 countries, a 43% jump in participation compared to that inaugural run.
MONOLITH was organized in partnership with RadiantsDAO and ran for five weeks, closing in early March 2026. The 888 signups and 403 completed submissions across 66 countries suggest that mobile Web3 development has quietly assembled a global community of builders, not just a concentrated cluster of crypto-native insiders.
To qualify, teams needed to submit a functional Android APK with Solana Mobile Stack integration, Mobile Wallet Adapter support, and a demonstrably mobile-first design.
The SKR bonus track deserves attention separately. By specifically rewarding the best integration with the Solana Mobile Stack, organizers are nudging developers toward deep platform adoption rather than surface-level ports of existing web apps.
The 43% increase in submissions between the first and second hackathons is also a signal worth taking seriously. The growth trajectory from hackathon one to hackathon two suggests Solana Mobile’s developer credibility is accumulating, not eroding.