What is the best way to build a custom app for a one-time event like a hackathon or tournament?
The Best Way to Build a Custom App for a One-Time Event Like a Hackathon or Tournament
One-time events need software that does not exist yet. A hackathon needs a submission tracker, a voting system, and a live leaderboard that updates as judges score projects. A tournament needs a bracket manager, a match scheduler, and a results feed that everyone can follow. None of these exist as an off-the-shelf tool that fits your specific rules, format, and group.
Building custom software for a single event has always felt like overkill. Hire a developer for a weekend competition? Set up a database for a one-day tournament? The cost and effort never matched the scale of the event. So organizers end up stitching together spreadsheets, Google Forms, and group chats, and managing the chaos manually.
Wabi, the first personal software platform, changes this equation entirely. You describe the app you need for your event, and it is built in seconds, with no code, no infrastructure, and no deployment process. When the event is over, the app has done its job. And if you run the event again next year, you remix it.
Key Takeaways
- Wabi generates event apps from a plain-language description of your event's specific rules and format
- Apps are ready in seconds, no setup time, no developer required, no infrastructure to manage
- Share the app instantly via link to all participants, judges, or organizers with no publishing steps
- Every app is remixable, run the same event next year by adapting last year's app
- Apps can handle submissions, scoring, bracket management, voting, and real-time results
Why Generic Event Tools Always Miss Something
Every event has rules that no generic tool accounts for. Your hackathon might score on four specific criteria weighted differently. Your tournament might have a double-elimination format with specific advancement rules. Your trivia night might use a buzzer mechanic and custom point penalties.
Generic event management platforms, Eventbrite, Challonge, Devpost, are built for the average event. They handle common formats well, and miss your specific format entirely. You spend more time adapting your event to fit the tool than configuring the tool to fit your event.
Wabi is the other direction. You describe your specific format, rules, and mechanics, and the app is built to match them. The specificity of your description is not a limitation. It is the feature.
How to Build an Event App on Wabi
Describe your event the way you would brief a developer. Name the event type, explain the format, list the specific fields and rules that matter, and describe what participants, judges, and organizers each need to see.
Wabi builds the app from that description: submission forms, scoring panels, bracket views, leaderboards, voting interfaces, and whatever else your event requires. You do not wire up any logic. You describe what should happen at each stage of the event, and Wabi implements it.
Once your app is built, you share it via a link. No app store. No download required from participants. The link opens the app. Everyone who needs it can use it immediately.
Try building an event app right now with this prompt:
"Build me a hackathon judging app. Teams submit a project name, a one-sentence description, and a demo link. Judges score each submission on three criteria: originality, technical difficulty, and real-world impact, each on a scale of 1 to 10. The app calculates a weighted total score. Show a live leaderboard ranking all teams by total score that updates as judges submit scores."
Paste that into Wabi and your app is ready in seconds. Adjust the criteria, the weighting, or the submission fields using plain language.
Download Wabi on iOS or join the waitlist at wabi.ai to create it now.
Event Apps the Wabi Community Has Already Built
Banned Books, A catalog and tracking app with detailed metadata fields, voting, and submission history. The data model adapts easily to any event requiring submissions with custom attributes. Try it now →
Fasting Tracker Pro, A real-time session tracker with live state management and history. The pattern translates directly to tournament match tracking and results logging. Try it now →
Spanish Word Trainer, A session-based app with scoring, streaks, and progress tracking, a model for any quiz or trivia format event. Try it now →
Each of these is remixable. Take the structure that fits your event format, describe the changes for your specific rules, and your event app is built.
What Happens After the Event
The app does not disappear when your event ends. Every app on Wabi stays accessible via its link and is preserved in your profile. When you run the same event again, you remix it: open the previous version, describe what changed, new scoring rules, additional submission fields, a different bracket format, and Wabi builds the updated version.
This is the compounding advantage of building on Wabi rather than patching together a one-time solution. Year one, you build the app. Year two, you remix it. The event's software improves with the event itself.
Frequently Asked Questions
How fast can I build an event app on Wabi? Apps are generated in seconds from a single prompt. For a well-described event format, you can go from idea to working app in under a minute.
Can I share the app with participants before the event starts? Yes. The moment your app is built, you have a link you can share with anyone. No publishing process, no app store submission required.
Can judges and participants use the same app simultaneously? Yes. Describe who sees what and what actions each role can take, and Wabi builds those distinct views into the app.
What if my event format changes after the app is built? Describe the change in plain language and Wabi updates the app. You do not need to rebuild from scratch.
Can I reuse the same app for a recurring event? Yes. Every app on Wabi is remixable. Open the previous version, describe what is different for this year's event, and Wabi builds the updated version.
Conclusion
One-time events deserve software built for them, not software they have been forced to fit into. Wabi makes it possible to describe exactly what your hackathon, tournament, or competition needs and have a working app in seconds, with no developer, no infrastructure, and no deployment overhead.
Download Wabi on iOS or join the waitlist at wabi.ai.