$135,000 in Prizes: Solana Mobile’s CLOCK IN Hackathon Targets the Next Wave of Seeker Apps

Solana Mobile has announced CLOCK IN, a 30-day hackathon organized by RadiantsDAO, running from September 8 to October 8. The competition offers $135,000 in total prizes to developers building mobile-first applications for the Solana ecosystem.

The event marks Solana Mobile’s 3rd hackathon and represents another push to expand the developer community around its Seeker Android device, Solana Mobile Stack, and dApp Store.

The prize structure includes 10 grand prize awards worth $10,000 each and 5 honorable mentions worth $5,000 each. Organizers will also award a separate $10,000 SKR bonus for the project that delivers the strongest integration with the Solana Mobile Stack.

Winners can also receive Seeker devices, dApp Store placement, marketing support, and 1-on-1 consultations with Solana co-founder Anatoly Yakovenko.

CLOCK IN Builds on Earlier Hackathons

Solana Mobile has already used hackathons to encourage developers to build for its mobile ecosystem. The first hackathon, held in 2025, offered a $100,000 prize pool. The second event, MONOLITH, saw over 400 completed submissions from teams across 66 countries.

MONOLITH ran for 5 weeks and concluded in early March 2026. Its 400+ submissions represented a 44% increase in participation compared with the inaugural hackathon.

RadiantsDAO also partnered with Solana Mobile on MONOLITH and now organizes CLOCK IN.

Builders Face Specific Technical Requirements

CLOCK IN does not simply invite developers to package existing websites into Android applications. Under the hackathon rules, a project must have started no earlier than 3 months before the published launch date. Existing projects can participate if they meet that requirement and demonstrate significant new mobile development during the hackathon. Teams with existing web applications can also enter, but their submissions must include a functional Android application with meaningful mobile-specific development.

Each project must produce a functional Android APK, integrate the Solana Mobile Stack and Mobile Wallet Adapter, and interact meaningfully with the Solana network. Submissions must include the Android APK, a GitHub repository containing the source code, a demo video, and a pitch deck or brief presentation.

Judges Will Focus on More Than Technology

CLOCK IN judges will score eligible projects across 4 equally weighted categories:

• Stickiness and product-market fit accounts for 25% and measures how well a project connects with the Solana Mobile and Seeker community while encouraging repeated engagement.

• User experience represents another 25%, covering usability, polish, and the quality of the mobile experience.

• Innovation and X-Factor makes up 25% and considers novelty, creativity, and differentiation.

• The final 25% goes to presentation and demo, which evaluates how clearly teams explain their projects and demonstrate their functionality.

Following the Seeker Ecosystem

SolanaFloor and Solana Mobile run Shipped, a monthly livestream focused on builders, applications, and products launching on Seeker. The next episode on September 9th features Solana Mobile General Manager Emmett Hollyer, RadiantsDAO, and BackYard Finance, a previous hackathon winner, with discussion covering Seeker Summer, Season 2, and the upcoming CLOCK IN hackathon.

To keep up to date on all things Solana Seeker and stay on top of all the device’s exclusive perks and rewards, visit SolanaFloor’s Seeker Hub.

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Shipped Episode 3