Deen Labs

Studio

We build apps, platforms and AI products. And stay after launch.

Twelve years of building for startups and large companies. One small senior team takes your product from the first sketch to the app stores, and keeps it running.

What we build

Native mobile apps

iOS and Android apps that feel at home on each platform, work offline and stay fast.

Swift · Kotlin · Jetpack Compose

Cross-platform

One Flutter codebase for phone, tablet and web, without looking like a compromise.

Flutter · Dart

Web platforms

Fast, accessible web apps, customer portals and internal dashboards.

TypeScript · React · Astro

Backend & cloud

APIs, databases, sign-in and infrastructure that carry real traffic safely.

APIs · Postgres · Cloud

AI features

Language models built into real products, with guardrails, testing and cost control.

LLMs · RAG · Evaluation

Technical advice

Architecture reviews, stack decisions and scaling audits before you commit.

Reviews · Audits · Second opinions

Approach

Three phases. No surprises.

You always know what happens next, what it costs and what you get.

1Before we build

Discover

We map your goals, users and constraints.

  • Written scope
  • Clear estimate
  • Plan with milestones
2While we build

Build

Short cycles, so you always see the progress.

  • Working versions early and often
  • Code in your own repository
  • One contact person
3After launch

Launch & care

We stay after launch.

  • App store release
  • Monitoring and updates
  • Long-term support

Ways to work together

Pick what fits your stage.

Project

A defined product or feature with a clear scope. Written estimate after Discover.

Best for a first version

Product team

We work as your product team for a longer stretch, with a plan we agree on together.

Best for growing products

Second opinion

A review of your architecture, code or plan, with a written report.

Best before a big decision

Tools

What we build with.

Proven tools we know well, chosen for your product, not for our habits.

  • Swift
  • Kotlin
  • Jetpack Compose
  • Flutter
  • Dart
  • TypeScript
  • React
  • Astro
  • Postgres
  • REST & GraphQL APIs
  • Cloud infrastructure
  • LLMs
  • RAG
  • Evaluation

Questions

Good to know.

Who owns the code?

You do. The code, the accounts and the keys are yours from day one. We work in your repository.

How do you price a project?

After the Discover phase you get a written scope and a clear estimate. You know what to expect before we build, with no hidden costs.

Do you work in German and English?

Yes, both. Documents and meetings are in the language that suits your team.

What if you are not the right team?

Then we tell you, and if we can, we point you to someone who is.

Tell us what you want to build.

Fill in one sentence and we write the email for you.