DeepDays mockup

Mobile App · Web App

The platform where over 50,000 users discover car events.

With over 50,000 users in just 6 months, DeepDays has changed how the car scene finds events. People who used to search Instagram, websites and group chats now find the big events in one app.

DeepDays screens
4.8★★★★★250+ reviews · 60,000 users

Download the app now!

DeepDays is available on the App Store and Google Play.

Download on the App StoreGet it on Google Play
350+Events
15,000+Cars registered
€1M+Ticket sales

Focus on quality

Key areas

  • UX/UI design
  • User flows
  • Cross-platform app development
  • Ticket sales and payments
  • Admin panel / Content management
Client
DeepDays
Industry
Car events
Service
UX/UI design, development, marketing
Platform
iOS, Android and web
Launch
January 2026
Tech
React Native, Next.js, Node.js, MongoDB

One look for every screen

Black, white and cool graphite, nothing else. That way the cars bring the colour into the app.

Black#08080C
Graphite#202834
Grey#80848C
White#FCFCFD

Headings in Bebas Neue, text in Inter.

(I) Our Vision

A Platform for All Car Events Across Germany

The car scene lives on events. If you wanted to go, you found dates on Instagram, applied with your car through a form on the organiser's website and bought the ticket somewhere else again. That's exactly what we wanted to change. In DeepDays you see every event on a map, apply with the car from your garage and buy the ticket right in the app. Organisers see all applications in one place and decide there who gets to bring their car.

(II) UX/UI Design & Development

From Concept to Finished Platform

The idea had to become a product that organisers and visitors both use. So we first defined the flows that carry everything: finding an event, applying with your vehicle, buying a ticket and checking in at the gate.

Then came the UX/UI design. In your garage you see every application with its status, accepted or still pending, and once you're accepted the app unlocks the tickets. We built DeepDays as an app for iPhone and Android and as a web app, so organisers and visitors use the same platform.

(III) The tech

What we used to create DeepDays

The app and the web app run on the same back end. An application from the browser and a ticket from the app end up in the same data, so the organiser sees both right away. You add your car to your garage once and then just pick it for every application.

Front-end
React NativeExpoNext.js
Back-end & Infrastructure
Node.jsMongoDBFirebase
Integrations
StripeGoogle MapsSentry
Design & Prototyping
Figma

(IV) The growth

Built for High Demand

When a big event opens ticket sales, lots of users want to buy at the same moment. DeepDays is built for that. Events with up to 10,000 visitors sell their tickets through the app, together more than €1M in the first year.

  1. nowFast-growing startup
  2. apr 2026More features & growth
  3. mar 2026Community growing
  4. Feb 2026Partnered with big events
  5. jan 2026Launch

(V) Marketing & Growth

From Platform to Growing Marketplace

Building DeepDays was not only a technical challenge but also a marketing one. As a marketplace, we had to attract two target groups simultaneously: organizers publishing their events on the platform, and visitors discovering these events and purchasing tickets.

With clear UX/UI design, a product strategy for both sides and targeted campaigns, we grew DeepDays to over 50,000 users in just 6 months and laid the groundwork for an active community.

Today organisers add their events themselves, and the community finds them on the app's home screen.

Book a call

Core Features That Drive Engagement

Every step of buying a ticket counts. You pick the ticket, add optional extras and pay, and at the top you always see which of the three steps you're on. Your phone number is already saved, so you never type anything twice.

  1. 01

    Event lists

    Every event shows the date, the organiser and how far it is from you at a glance. Tap the heart to save an event, tap the ticket icon to go straight to checkout. That way you compare dates without opening every event.

    Event lists
  2. 02

    Secure checkout & payments

    Checkout takes you in three steps from the ticket through the extras to payment. Payments run through Stripe. Before you buy, the order summary shows everything you're paying for once more, so there are no surprises afterwards.

    Secure checkout & payments
  3. 03

    Interactive Map pins

    The map shows what's happening near you: events, but also partners like workshops. Tap a pin and the map shows the distance and the website right below. That way you also find events you weren't looking for.

    Interactive Map pins

Discover even more projects here

Curious about what else we do?

See all projects

Book your free call.

We look at your plans with you as if they were our own. If the build isn't worth it, we'll tell you, even if that means no project.

Pick a day

Pick a day

Loading available times …