Build
Compete
Launch your app
notJust Hack
The best online Hackathon for Indie Mobile Developers
📅 October 1st - October 31st
🚀 notJust Hack is an online hackathon where developers build, launch, and showcase real-world apps.
Unlike traditional hackathons that focus on prototypes, this challenge is about shipping meaningful products — apps that make it to the Apple App Store or Google Play Store.
We’re now heading into our 5th edition 🎉 — and it keeps getting bigger, bolder, and more impactful with every round.
Over the past editions, hundreds of developers from around the world have joined, launched real apps, and grown their skills in the process. October 2025 is your chance to be part of it.
Challenge yourself to build a functional mobile app and publish it to the stores.
Level up your skills by building and shipping your own app. That's always the best way to learn.
Compete for incredible prizes like MacBook Pros, premium courses, and cash rewards.
Connect with developers worldwide and be part of an exclusive community of awesome builders.
Secure your spot and get ready to build! Once registered, you’ll get access to updates, resources, and more!
Decide on your app idea, development stack, and start building! You can work solo or with a team (up to 3 people). Use any tools you like to build faster and better.
Your project must be successfully published on the Apple App Store or Google Play Store, and submitted on the notJust Hack website before October 31st. Get familiar with app stores submission guidelines to avoid delays.
The community votes for the best apps, and our judges evaluate based on business viability, functionality, and user experience.
The best apps are revealed in the Demo Day Livestream, where winners have the opportunity to showcase their project.
Follow our YouTube channel for livestreams, coding tutorials, building tips and Hackathon Updates.
Connect with fellow participants, find teammates, and discuss your project in the notJust Hack section on our Discord Server.
See how notJust Hack helped developers push their limits, build real apps, and launch their ideas.
Frequently Asked Questions
notJust Hack is for mobile developers ready to build something impactful, indie devs looking to validate their next idea, and React Native enthusiasts eager to push boundaries. Whether you’re a beginner or an experienced developer, if you’re excited to build and launch something real, you’re welcome to join!
You can participate solo or in a team of up to 3 people. There are no special advantages or disadvantages for solo participants—just build something great!
notJust Hack is completely free to participate!
No, we do not require you to use any specific technology. Use the one the you know best!
Yes! While AI tools are not mandatory, you are encouraged to use tools like GitHub Copilot, Cursor, and ChatGPT to speed up development and improve efficiency. You will not be judged based on AI usage, but it can help you code faster and learn new techniques.
Yes! The hackathon runs for one month, and you’ll need to submit your final project before the mentioned deadline to be eligible for prizes.
Your app must be live on at least one store (Apple or Google Play) before the submission deadline. If your app gets rejected, fix the issues and resubmit ASAP to meet the deadline. We recommend submitting at least one week before the end of the hackathon to allow time for approval.
No worries! The goal is to learn, build, and improve your skills. Even if you don’t fully complete your app, you’ll still gain experience, make connections, and have a project to continue after the hackathon.
Once submissions close, voting will open shortly after.
• Community Voting – Participants and the public can vote for their favorite apps.
• Judging Panel – Our team will evaluate apps based on Innovation, Business Viability, Functionality, and User Experience.
The final ranking will be a combination of both votes and judge scores.
🏆 Winners will be announced during the notJust Hack Demo Day livestream, around 2 weeks after the building period ends.
The livestream will take place on our YouTube channel where the top projects will be showcased.
Finalists will have the opportunity to present their apps, share their experience, and get feedback from the judges.
Your journey to becoming a full-stack technical lead starts today. Learn faster by building real projects.
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