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
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.
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’ll need to create an account and sign in to use Uno Platform Studio Pro for the challenge. It’s available with a free 30-day trial, no credit card required.
That easily covers the full challenge window (Nov 21 – Dec 7), so you can build and submit your entry without ever hitting a paywall.
Your project submitted to DEV via a published post should showcase Uno Platform's cross-platform capabilities and demonstrate how a single .NET codebase can create native apps across multiple platforms.
