Posted on Nov 19

Join the AI Challenge for Cross-Platform Apps: $3,000 in Prizes!

#devchallenge #unoplatformchallenge #dotnet #ai

We're excited to announce our newest challenge with Uno Platform!

Running through December 7, the AI Challenge for Cross-Platform Apps invites you to build native cross-platform apps from a single shared codebase using .NET and Uno Platform's AI-powered tools.

Whether you're exploring Uno Platform for the first time or leveling up your .NET skills, this challenge is the perfect opportunity to explore building apps that run everywhere: iOS, Android, Windows, macOS, Linux, and WebAssembly - all from one codebase.

We hope you give it a try!

Our Prompts

WOW Factor

Build a true .NET cross-platform app that is stunning and fun — fast. Create a coffee shop–style home screen (like Starbucks or your local coffee roastery) or bring any theme you like -- all from a single Uno Platform codebase.

What to do:

Start an Uno Platform app project from your preferred IDE - either blank or from templates
Use mock data, menus, images, orders, or anything that brings your concept to life
Add simple engaging UI elements such as lists, buttons, or animations
Focus on creativity, performance, and smooth cross-platform experience

WOW Factor Submission Template

Tip: Keep it fun and visual — your goal is to make people say "Wow."

Hot Design & Hot Design Agent Showcase

Experience Hot Design, the designer for cross-platform .NET apps, now accompanied by an AI Agent.

What to do:

Pick any existing app or UI concept you like — mobile, desktop, or web
Run your app from any IDE on preferred target platform and launch Hot Design
Modify UI controls, bindings, and data visually
Use Hot Reload to keep your IDE and design surface perfectly synchronized
Let the Hot Design Agent (Preview) help you adjust app UI in real time while the app is running

Please note you'll need to share a images and/or recordings as part of this submission.

Hot Design Showcase Submission Template

Focus on: showing how AI and live visual design come together to make building beautiful, cross-platform .NET apps faster, easier, and more intuitive.

AI Acceleration

Demonstrate how contextual AI accelerates app development using Uno Platform MCP Servers.

What to do:

Choose any AI Agent like Copilot, Claude, Cursor or Codex
Build a simple cross-platform Uno Platform app using a public or sample API like JSON Placeholder, or check out [7 Free Public APIs](https://publicapis.io/
Ask Uno Platform MCP for grounded guidance as you build
Allow AI Agents to use Uno Platform MCPs to generate and refine your code
Agents can leverage Uno Platform App MCP to see/interact with running app for structured, context-aware AI interactions
Produce an app that runs on as many targets as possible — mobile, desktop, or web

Please note you'll need to share a images and/or recordings as part of this submission.

AI Acceleration Submission Template

Focus on: demonstrating how contextual intelligence and modern AI coding assistants help you build faster and smarter with Uno Platform.

Prizes and Judging

Judges will award one winner to each prompt based on the following criteria:

Use of underlying technology
Usability and User Experience
Accessibility
Creativity

Prompt Winners (3) will each receive:

$1,000 USD
Exclusive DEV Badge
DEV++ Membership

All Participants who submit a valid and qualified entry will receive completion badge on their DEV profile.

How To Participate

In order to participate, you will need to sign up for Uno Platform Studio and publish a post using one of the submission templates above.

Your project should showcase Uno Platform's cross-platform capabilities and demonstrate how a single .NET codebase can create native apps across multiple platforms.

Please review our judging criteria, rules, guidelines, and FAQ page before submitting so you understand our participation guidelines and official contest rules such as eligibility requirements.