We build mobile MVPs for early-stage B2B SaaS startups — usually in your users' hands within 8 weeks. Full-stack software studio, European time zone.

Mobile MVP Development

React Native iOS + Android. 8-12 week delivery, full design-to-launch.

Backend & API

Node.js / TypeScript backends, database design, third-party integrations, deployment.

Full-Stack Web Apps

Next.js + Postgres web applications, admin panels, dashboards.

Mesh — Frontend, mobile, and product engineering for a Budapest builder community

Problem: Mesh needed flexible engineering capacity across web frontends, mobile apps, and new product features as their products evolved.

Solution: Delivered multiple projects spanning React/Next.js frontends, React Native mobile apps, and a few OpenAI-backed features. Stack: React, Next.js, React Native, OpenAI APIs.

Outcome: Ongoing engineering partnership across multiple product surfaces.

Student Tutoring — Peer-to-peer tutoring marketplace for university students

Problem: Connecting upper-year students with lower-year students seeking tutoring required a marketplace with booking, payments, and scheduling.

Solution: Built an end-to-end marketplace with tutor profiles, class browsing, booking flow, Stripe payments, and multi-language support (EN/HU). Stack: Next.js, Postgres, Stripe.

Outcome: 50+ students helped, 4.9 average rating.

AutoFlow — AI-powered YouTube content automation platform

Problem: Managing multiple YouTube channels required coordinating freelancers across 7 content stages — research, scripts, voice, visuals, assembly, thumbnails, upload.

Solution: Built a complete pipeline automation platform with AI integration at every stage. Single dashboard for managing multiple channels, role-based access for team members. Stack: Next.js, Postgres, OpenAI integration, video processing pipeline.

Outcome: Reduces a week of coordination work to a pipeline monitored twice a day.

Step 1 — Discovery (Week 1)

30-minute discovery call. Scope, timeline, and approach finalized within 48 hours. Detailed proposal delivered.

Step 2 — Build (Weeks 2-7)

Backend first, then mobile UI. Weekly demos. Linear/Notion access for full transparency. Async-first communication.

Step 3 — Polish & Launch (Week 8)

QA, performance audit, App Store + Play Store submission, analytics setup.

Step 4 — Post-Launch Support (30 days)

Bug fixes, performance optimizations, first feature requests from real users.

Duna Yazılım is a software studio based in Budapest and Istanbul, building mobile MVPs for early-stage B2B SaaS companies. We take a product from the first call to something real in your users' hands — design, engineering, and launch handled end to end.

We've delivered 10+ products for founders across Europe and the US. The work stays hands-on and senior throughout: direct communication, progress you can see every week, and a product built to learn from real users, not just to demo well.

We work on Central European time (CET) and are available for in-person meetings across Europe, the Middle East, Canada, and the US.

Ready to ship?