Join Proof of Concept, a 8-week virtual startup competition to create mobile apps that prove anything online, securely and undeniably. From verifying your gaming skills or concert attendance to tracking exercise habits or medical history, we’re looking for innovative ideas that leverage verifiable data to build trust.

No coding expertise required! Bring a bold idea, and XION’s beginner-friendly tools will help you make it real. Basic coding knowledge is a plus, but creativity and impact are what matter most.

Theme & Challenge

Build mobile apps that use verifiable data to create trust in new ways. Examples include:

• Proving online activity (e.g., social media views, downloads, or Uber rides)

• Verifying personal achievements (e.g., gaming stats, fitness goals, or concert visits)

• Enhancing trust in critical data (e.g., medical records, financial status)

• Validating AI-generated content or other internet sources

We want unique, practical, and scalable ideas that redefine how we trust information online.

Note: please check the Idea Bank Page for more concrete ideas.

Why Participate?

• Innovate: Create apps using cutting-edge zkTLS technology.

• Build Easily: Use XION’s Premier Mobile Developer Kit (Dave) to develop iOS and Android apps with built-in proof features, no complex coding needed.

• Win Big: Earn prizes at three checkpoints and compete for major awards, including funding and mentorship opportunities.

• Get Support: Collaborate with experts, test your app, and pitch to investors to bring your idea to life.

How It Works

This isn’t your typical hackathon—it’s a structured journey to ideate, build, and launch game-changing apps. The competition includes and Ideathon, three prize-eligible checkpoints and a final judging phase:
Note: Ideathon and checkpoint are optional but will give additional prizes

Ideathon (Finished)

• Brainstorm app ideas that leverage verifiable data.

• Collaborate with XION experts

• The best ideas will be voted by the public via social media submissions

• Prizes: Top ideas win cash and mentorship to kickstart development (see details on Checkpoint Page).

Checkpoint 1

• First app touchpoint, here you should submit the current status of your application for judging.

• You'll be able to get direct feedback form XION's experts and advice on the best way forward

• Prizes: Top projects win cash and mentorship for the continuos development (see details on Checkpoint Page).

Checkpoint 2

• Second app touchpoint, here you should submit the current status of your application for judging.

• You'll be able to get direct feedback form XION's experts and advice on the best way forward

• Prizes: Top projects win cash and mentorship for the continuos development (see details on Checkpoint Page).

Checkpoint 3

• Last app touchpoint, here you should submit the current status of your application for judging.

• You'll be able to get direct feedback form XION's experts and advice on the best way forward

• Prizes: Top projects win cash and mentorship for the continuos development (see details on Checkpoint Page).

Note: Teams who completed the Ideathon and all checkpoints will get some exclusive XION benefits (more information to be shared)

Note 2: Teams need to show material changes from one checkpoint to another.

Final Judging

• Launch your polished app and submit it for judging.

• The App will be reviewd by an expert panel and judged based on the key criteria showed in the rules section

• Prizes: Grand prize winners get cash, mentorship, and a chance to scale their app globally (see details below on the Prize section)

Who Can Join?

Everyone! Whether you’re a:

• Student with a big idea

• Entrepreneur seeking the next big thing

• Developer (beginner or pro)

• Creative thinker passionate about trust and technology

XION’s intuitive platform simplifies the technical side, so you can focus on building an app that matters.

Why XION?

The internet is changing, and XION is at the forefront. With our Premier Mobile Developer Kit (Dave), developers can create iOS and Android apps faster than ever, even without deep coding expertise. That combined with zkTLS and App attestation to make verifying information secure and seamless. This is your chance to build apps that were impossible until now.

Prizes

• Ideathon Prizes:
  • $2,500 distributed to the top 5 ideas ($500 per idea)

• Checkpoint Prizes: 

  • 1st Place : $1,250

  • 2nd Place $750

  • 3rd Place: $500

• Final Prizes: 

• 1st: $7,500

• 2nd: $5,000

• 3rd: $2,500

• Additional Prizes 

• Pre-seed funding & exposure for winners from VCs who invest 7-8 figures

• Accelerator program support: from idea to product

• 1 hour 1:1 with XION's founder and technical team leaders

• XION to potentially anchor pre-seed round with funding

• Up to $220,000 in Partner Incentives

Key Dates

• Start: 07.24.2025 12pm EST

• Checkpoint 1 Submission: 08.07.2025 12pm EST

• Checkpoint 2 Submission: 08.21.2025 12pm EST

• Checkpoint 3 Submission: 09.04.2025 12pm EST

• Final Submission: 09.19.2025 12pm EST

• Judging Period: 10.03.2025 - 10.17.2025 12pm EST

• Winners Announced: 10.23.2025 12pm EST

Ready to Prove It?

Join Proof of Concept and build the future of trust online. Register today and turn your idea into the next big app! 

FAQs

• I missed the previous checkpoints. Can I still participate in the next ones?


Absolutely! Proof of Concept isn’t a traditional hackathon — it’s an 8-week competition you can join at any point. The program includes an Ideathon, three prize-eligible checkpoints, and a final judging phase. Even if you didn't join earlier, you're still eligible for upcoming checkpoints and the final round. Just keep in mind that both the Ideathon and checkpoints offer extra prize opportunities.

• I just joined Proof of Concept today. Can I still participate?


Yes! You can start competing today or at any point during the 8-week competition. Proof of Concept is designed to be flexible — you can develop and submit your idea whenever you’re ready, as long as it’s within the competition timeline.

• I need direct and instant communication. Who should I reach out to?

If you need immediate support, feel free to contact us at [email protected] or reach out directly to @terodaher on Telegram.

• Technological Implementation
  Does the project demonstrate quality software development? Does the project thoroughly leverage the required tool? How is the quality of the code?
• Design
  Is the user experience and design of the project well thought out? Is there a balanced blend of frontend and backend in the software?
• Potential Impact
  How big of an impact could the project have on the target community? How big of an impact could it have beyond the target community?
• Quality of the Idea
  How creative and unique is the project? Does the concept exist already? If so, how much does the project improve on it?