Invyn

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Vibe coding with the help of AWS Claude Opus 4

Inspiration

Invyn was born out of a simple frustration: planning events felt harder than they should. Between scattered group chats, lost details, and uninspired invites, the joy of gathering was often buried in the chaos. So, we envisioned something different: a tool that made invitations seamless, elegant, and meaningful. Invyn weaves people together through design and clarity, turning every invite into more than just logistics—it becomes part of the celebration itself.

What it does

Invyn transforms the way people plan and share events. Instead of juggling scattered chats and clunky tools, it gives hosts and guests one elegant space to connect. Every invite becomes more than a notification; it’s a moment of joy that sets the tone for the celebration.

Create beautiful invites: Design digital invitations that feel personal and stylish.
Simplify planning: Keep all event details like time, place, and notes in one organized hub.
Track RSVPs with ease: Know exactly who’s coming without messy spreadsheets or guesswork.
Delight your guests: Make receiving an invite as enjoyable as attending the event.
Bring people together: Weave connections by turning logistics into shared anticipation.

How we built it

Invyn was crafted with both design and technology working hand in hand. At its core, we built the app in Java, giving us a reliable, scalable foundation that could handle smooth performance as events—and guest lists—grew. To keep people connected in real time, we integrated OneSignal, ensuring instant notifications for invites, updates, and RSVP confirmations. Every technical choice was guided by a single principle: make planning effortless and keep the joy of gathering intact.

How "vibe coding" played a part

Challenges we ran into

Building Invyn wasn’t without its roadblocks. Working with Java, we had to ensure the app stayed lightweight while still delivering smooth performance across a wide range of devices. Notifications with OneSignal were powerful, but fine-tuning them so users weren’t overwhelmed, or worse, left in silence, took careful balancing. We also faced the classic challenge of design versus function: creating something visually elegant while keeping the user journey frictionless.

On the personal side, even moments of vertigo tested our pace. But what pulled us through every challenge was teamwork, supporting one another, sharing ideas, and finding creative solutions together.

Each obstacle became part of the process, shaping Invyn into a platform that doesn’t just work, it delights.

Accomplishments that we're proud of

Shipping a whole app in 1.5 month

Built a scalable, reliable app in Java that performs smoothly across devices.
Integrated OneSignal notifications for real-time updates and RSVP tracking.
Designed a user-friendly, elegant interface that turns invites into experiences.
Overcame technical and personal challenges through teamwork and creativity.
Enabled hundreds of users to host seamless, joyful events, turning planning into celebration.

What we learned

Technology solves problems, but empathy and teamwork make them meaningful. Listening, iterating, and keeping joy at the center turns challenges into opportunities and invites into experiences.

Babatunde, in particular, learned how to work in a team as this was his first time submitting a project with a partner on Devpost.