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tansuk.dev

Web & mobile

MVP and mobile app development

If you want to ship a web + mobile product as a startup or SME in Turkey: we build end-to-end MVP and mobile apps with Next.js and React Native (Expo). Backend is Node.js or .NET, depending on the product. We are a two-person senior studio; the person you talk to writes the code. Source code, store accounts, and the repo are yours.

Who it's for

  • Founders who want the first product (MVP) live without hiring a team
  • Teams who want iOS + Android from one codebase
  • Teams who need to modernize a legacy .NET or PHP system without stopping the business
  • People looking for a direct senior partnership, not an agency account / ticket factory

Who it's not for: logo + a 5-page corporate site only; or enterprise tender work that needs a 50-person team.

Where this comes from

This page is about MVP and mobile. The same studio also does .NET β€” from production work, not a slide deck.

  • The studio is two people. The person you talk to writes the code.
  • Architecture for a production React Native mobile banking app; a 7-person team.
  • Senior engineering on public-sector systems β€” including classified environments.
  • Four separate PHP / .NET Framework β†’ modern .NET migrations (DDD, Clean Architecture).
  • Named, visitable proof: VetAsist, Rott-UI, cnjeoloji.com.
About the studio.NET modernization service

How we work

  1. Intro call (30–45 min)

    Problem, user, single value proposition. This is not the paid Discovery package β€” a short fit conversation.

  2. Written scope

    Screens, integrations, definition of done, estimated duration.

  3. Sprints

    Weekly demo; a live staging URL.

  4. Launch

    Web (Vercel or your infrastructure), App Store / Google Play process.

  5. Handover

    Repo, environment variables, short documentation.

Stack

  • Web: Next.js, TypeScript, React
  • Mobile: Expo / React Native (Rott-UI β€” on npm as @tansuk/rott-ui)
  • Backend (as needed): Node.js, tRPC, Prisma, PostgreSQL β€” or .NET (DDD / Clean Architecture)
  • .NET modernization: PHP / .NET Framework β†’ modern .NET, without stopping the business
  • Delivery: Docker / Coolify or the hosting you prefer

Live examples: VetAsist (multi-tenant veterinary SaaS β€” web + Expo mobile), Rott-UI (React Native design system, npm @tansuk/rott-ui), cnjeoloji.com (Next.js corporate site).

VetAsist case studyRott-UI case studyCN Jeoloji case study

Typical timeline

Typical scope and duration ranges
ScopeDuration
Focused web MVP (auth + core flow)4–8 weeks
Web + Expo mobile (same product)8–14 weeks
Mobile layer on an existing productafter discovery

Duration depends on a locked scope. β€œCan we also add this?” is a change request.

Pricing

There is no new price table on this page β€” we are not publishing invented bands. Published packages (excl. VAT) live on the Packages page, including Discovery and MVP Sprint. A written quote follows a locked scope.

See packages

FAQ

Who keeps the source code?
You do. We push to your GitHub/GitLab account.
Do we have to meet in person in Istanbul?
No. We are based in Ankara and work remotely in TR/EN. In-person can be arranged if needed.
Do you do Flutter?
Our primary mobile stack is React Native / Expo. If you need Flutter, say so β€” we will not invent a promise.
Do you also do .NET modernization?
Yes. The career spine is .NET + React / React Native. We have done four separate PHP / .NET Framework β†’ modern .NET (DDD) migrations. This page is about MVP/mobile; .NET modernization is a separate service.

For legacy .NET work, see the legacy modernization service.

Next step

Describe the project in two paragraphs.

hello@tansuk.dev β€” a personal reply within 24 hours.

Open the contact form