App development company in Vienna
iOS, Android and web apps for Vienna companies in services, life sciences and regional business across Central and Eastern Europe, served from our Zürich office.
- Custom quote after a brief
- No sales pitch
Company-wide:★★★★★ 4.9+ on Clutch·250+ brands·10 offices
UnFoldMart is an app development company serving Vienna from our Zürich office at Hardstrasse 201, 8005 Zürich, about 590 km away; we have no office in Vienna. We design and build iOS, Android, cross-platform (Flutter, React Native) and web apps for companies in Vienna, with the GDPR and Austria's accessibility law (BaFG) planned in, from discovery to store release and support. Meet us in person at our Zürich office or at any of our 10 offices, or by video. Meetings are in English, and pricing is a custom quote after a short brief and a free 30-minute call.
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Key facts
| Service | Mobile and web app development: iOS, Android, cross-platform (Flutter, React Native), web apps and PWAs, backend and store release |
|---|---|
| Company | UnFoldMart |
| Serving office | Zürich office: Hardstrasse 201, 8005 Zürich, Switzerland (about 590 km from Vienna; no office in Vienna) |
| Meetings | Meet us in person at our Zürich office or at any of our 10 offices, or by video. |
| Languages | First call in English; project calls by video in English |
| Time zone | Central European Time (CET/CEST); project teams are led from our international offices |
| Typical timeline | Discovery 1–3 weeks · design 2–5 weeks · first version 8–16 weeks · testing and store release 1–3 weeks (ranges, not guarantees) |
| Pricing | Custom quote after a short brief: fixed-scope project or ongoing product team. No price list. |
| Booking | Free 30-minute video call ↗ |
| Company-wide | 10 offices in 10 markets · 250+ brands · 500+ projects · 4.9+ on Clutch · 8 working languages |
App development for Vienna companies
Vienna is Austria's capital and largest city, with just over two million inhabitants. Services provide most jobs, many international companies run their Eastern European operations from here, and the University of Vienna is the oldest and largest university in the German-speaking world.
Vienna at a glance
- IndustriesServices, life sciences, regional offices for Central and Eastern Europe, international organisations
- UniversitiesUniversity of Vienna and the Vienna Life Science Cluster
- Data lawGDPR, Austrian Data Protection Authority, BaFG (accessibility)
- Serving officeZürich, about 590 km away
- Time zoneCET in winter, CEST in summer
Services and finance
Customer, account and self-service apps built for security reviews.
Life sciences
Study, patient-support and internal apps with careful data handling.
Regional and multi-country teams
Apps in several languages for teams across Central and Eastern Europe.
What our app developers for Vienna build
iOS and Android app development, Flutter and React Native apps, web apps and the backend behind them.
iOS and Android apps
Swift and Kotlin, full device access.
Cross-platform apps
One React Native or Flutter codebase.
Web apps and PWAs
Portals and tools, no store needed.
Backend, APIs and integrations
Accounts, payments, CRM, ERP.
MVPs and first versions
Test your idea with real users.
Takeover and support
Review, fixes, upgrades, rebuilds.
Native, cross-platform or web app?
Native iOS app development in Swift, Android in Kotlin, or one Flutter or React Native codebase. We recommend one in discovery.
| Native | Cross-platform | Web app / PWA | |
|---|---|---|---|
| Code | Swift (iOS) and Kotlin (Android) | One codebase: Flutter or React Native | One codebase: TypeScript, React |
| Performance and device features | Best; full device access | Very good for most apps | Good; limited device access |
| Time to both stores | Longest: two apps | Usually faster | No store needed |
| Best for | Demanding, device-heavy apps | Most business and consumer apps | Portals and internal tools |
Apps we can build
Common app types; illustrative screens, not client work.
Booking and scheduling
Pick a slot, pay, get reminders.
Shop and loyalty app
Browse, buy, collect points.
Customer portal
Orders and documents, one login.
Field-service tool
Jobs and checklists on site.
Marketplace
Two sides meet and book.
Finance dashboard
Balances and reports at a glance.
- Chat assistant
- Smart search
- Document reading
- Recommendations
How we work
From brief to store release, with a working build at every stage.
- 1BriefScope and quote
- 2PrototypeClickable design
- 3SprintsDemo every two weeks
- 4Store releaseApp Store · Google Play
Timeline
| Phase | Typical duration | You get |
|---|---|---|
| Discovery and scope | 1 to 3 weeks | Written scope and quote |
| UX and UI design | 2 to 5 weeks | Clickable prototype |
| Build in sprints | 8 to 16 weeks for a first version | Test build every sprint |
| Testing and store release | 1 to 3 weeks | Real-device and security testing, store submission |
| Support and next versions | Ongoing, as agreed | Monitoring, updates, next versions |
Typical ranges in weeks, not a guarantee.
How to choose an app development company in Vienna
Six checks before you sign, whoever you hire.
Platform fit
Ask which approach they recommend (native, Flutter, React Native or web) and why.
UnFoldMart: We recommend one in discovery.
A written scope and quote
What is in, what is out, and how changes are priced.
UnFoldMart: Scope, timeline and price in writing.
A visible process
A clickable prototype first, then demos and test builds you can install.
UnFoldMart: A demo after every two-week sprint.
Security and data protection
How data is protected and tested before release.
UnFoldMart: OWASP MASVS, security testing before launch.
Store release and ownership
Who submits to the App Store and Google Play, and who holds the accounts and code.
UnFoldMart: App Store and Google Play submission is part of our release step.
Support after launch
Updates for new iOS and Android versions, monitoring and a clean handover option.
UnFoldMart: Support agreed in your quote.
Agency, freelancer or in-house team?
| App agency | Freelancer | In-house team | |
|---|---|---|---|
| Skills | Design, build, testing and release in one team | Usually one specialism | The roles you hire |
| Start | After scope and quote | Often quick | After hiring |
| Continuity | Team covers absences and handover | Depends on one person | High while the team stays |
| Your management effort | Low to medium | Medium to high | High |
| Cost model | Project quote or monthly team | Hourly or daily rate | Salaries, hiring and tools |
| Best for | A full app, start to finish | A defined, smaller task | A long-term core product |
What affects the cost
No price list. Your quote depends on these factors.
- PlatformsiOS, Android, web.
- Screens and featuresHow many, how complex.
- IntegrationsPayments, CRM, ERP.
- Design depthStandard or custom.
- TimelineYour launch date.
- Languages and marketsGerman plus further languages for neighbouring markets add design, content and testing time.
Ways to work with us
Fixed-scope project
Scope and price in writing.
Ongoing product team
A dedicated team, monthly.
Discovery first
A scope you can use anywhere.
How quoting works
- Short briefWhat and for whom.
- Free 30-minute callBy video, in English.
- Written estimateScope, timeline, price.
- You decideNo obligation.
GDPR, DSB and BaFG
This is general information, not legal advice. Your legal adviser has the final word.
GDPR in Austria
The GDPR applies to every app that processes personal data of people in the EU. We plan consent, data minimisation and deletion into the app from the first sprint.
Official source: GDPR (Official Journal of the EU) ↗Austrian Data Protection Authority (DSB)
The Datenschutzbehörde is Austria's data protection supervisory authority; it also receives data breach notifications. We set up logging and an incident contact list with you before launch.
Official source: DSB (dsb.gv.at) ↗BaFG: accessibility
Austria's Accessibility Act (BaFG) applies to companies that place the products or provide the services it names after 28 June 2025, mainly business-to-consumer offers. We design and test apps for accessibility from the start.
Official source: BaFG (usp.gv.at) ↗Public standards we align our work to
Working with us from Vienna
One dedicated team; projects are led by UnFoldMart from our international offices.
Served from our Zürich office
Hardstrasse 201, 8005 Zürich, about 590 km from Vienna. We have no office in Vienna.
In person or by video
Meet us in person at our Zürich office or at any of our 10 offices, or by video.
Language
Calls and project work in English.
Time zone: Central European Time (CET/CEST)
Office-hours overlap: –
09:00–18:00 local time in both offices. Same time zone as our Zürich office.
Company-wide figures across all our services, not app projects.
- Frankfurt · in person
- Zürich · in person
- London · in person
- Amsterdam · in person
- Paris · in person
- Madrid · in person
- Warsaw · in person
- Singapore · in person
- Vancouver · in person
- Gurugram · in person
Frequently asked questions
App development in Vienna: before you book a call.
Do you have an office in Vienna?
No. We serve Vienna from our Zürich office at Hardstrasse 201, 8005 Zürich, about 590 km away. Meet us in person at our Zürich office or at any of our 10 offices, or by video. Workshops, design reviews and weekly check-ins run in English.
How much does app development cost in Vienna?
Pricing is custom. Cost depends on platforms, screens and features, integrations, design depth, compliance needs and your timeline. After a short brief and a free 30-minute call, you get a written estimate.
How long does it take to build an app?
Typically: discovery 1 to 3 weeks, design 2 to 5 weeks, build 8 to 16 weeks for a first version, testing and store release 1 to 3 weeks. These are ranges, not guarantees.
Should we build a native app or use Flutter or React Native?
Native (Swift for iOS, Kotlin for Android) suits top performance and deep device features. Cross-platform (Flutter or React Native) shares one codebase and usually reaches both stores faster. We recommend one in discovery.
Can the app serve users in Austria and neighbouring markets?
Yes. We set up the app for several languages and markets from the start, so adding a language or country is a content and configuration task, not a rebuild.
How do you handle the GDPR for apps in Vienna?
We plan consent, clear notices, data minimisation and deletion into the app from the first sprint. In Austria, the Datenschutzbehörde (DSB) is the supervisory authority. Your legal adviser has the final word.
Does our app have to be accessible under the BaFG?
Austria's BaFG applies since 28 June 2025 to many products and services for consumers, with an exemption for micro-enterprises. We design and test for accessibility from the start; your legal adviser confirms whether your service is covered.
Can we have the first call in German?
Yes. Our German page offers the free first call in German. During the project we talk by video in English, led from our Zürich office in the same time zone as Vienna.
Who works on our project, and how do we communicate?
Projects are led by UnFoldMart from our international offices, with a small dedicated team; projects for Vienna are led from our Zürich office. Calls are by video, in English, with a demo after each sprint.
Can you take over an existing app?
Yes. We start with a review of the code, the store listings and the backend, then fix, upgrade or rebuild in steps, so your app stays available.
Building an app in Vienna?
Tell us what you want to build; the quote follows in writing.