Mobile App Development: Get beautiful apps from experts

We are your partner to develop modern tailored apps for iOS & Android.

Reasons to build your mobile application with Felgo:

From Idea to App Store

We provide services for mobile apps from the idea to a successful app in mobile app stores.


This includes:

  • App Concept
  • App Prototyping: Click Dummies, PoCs (Proof of Concept), Wireframes
  • App Design
  • App Development (native apps and cross-platform apps)
  • Mobile Testing & Quality Assurance
  • App Store Rollout & Distribution
  • Marketing and App Store Optimization (ASO)
  • Mobile App Maintenance & App Analytics

Fast Development Process

We are specialized in mobile app development with 10+ years of experience.


Your project benefits from our existing knowledge and code base from more than 200 published apps that converted to more than 10 millions app downloads.

App Development

Our experienced team uses the latest mobile technologies to develop beautiful and performant apps.


We offer app development for:

  • New app ideas and products
  • Adding new features or fixing bugs of existing apps (maintenance)
  • Integration of Third-Party Services & Frameworks
  • Augmented reality (AR) and multimedia content
  • Advanced hardware & sensor integrations
  • Integration into business processes & Software (SAP)
  • Mobile clients for the Internet of Things

App Consulting

Felgo offers app consulting for any size of a project. We are experts for creating mobile software and share this knowledge with you. This helps you cut the risk of your choice of technology and accelerates your internal development process.


Examples of App Consulting services:

  • Research: Technology evaluation for your project
  • Porting: Bring existing apps from one platform to others (e.g. Android to iOS)
  • Cross-Platform: Port existing projects to cross-platform projects
  • Software Testing: Find and fix bugs or performance issues in your existing projects
  • QA: Code improvements & code reviews of your existing app
  • Optimization: How to use Analytics to improve your app
  • Development: Support your existing team with mobile app development services


Our knowledge continues beyond mobile apps and covers a wide variety of platforms, tools, programming languages, software stacks, and coding standards.

App Trainings & Workshops

Felgo offers tailored trainings & workshops based on your requirements and level of experience, so you get the most value and a customized experience instead of generic training courses. We offer one-to-one remote sessions via screen-sharing or entire team training on your own site. This allows you to attend trainings online or in your company.


Examples of trainings include:

  • Learn cross-platform app development for beginner, intermediate or advanced levels
  • How to migrate from native development to cross-platform development
  • Mobile App Development with Felgo & Qt

Gamification & Game Development

Gamification is the application of game principles in non-game contexts to improve user engagement, retention, productivity, ROI and ease of use.


As the creator of well-known Felgo SDK (former V-Play Engine), we have our root in gaming. We offer our knowledge in workshops to make your app more appealing and create higher usage and retention.

This includes:

  • How to bring gamification to your app or game
  • How to monetize your app with in-app purchases and gamification
  • How to increase usage and user retention within your app
  • Integration of gamification elements like leaderboards, achievements, virtual goods or challenges
  • Definition of virtual economy, virtual currency model and balancing
  • Ready to use system with Felgo Game Network
Having a specific game idea in mind? We can develop your mobile game idea!

Contact us here!

Let's make something great together and join our satisfied customers:


"Felgo developed mobile service portals and apps for T-Mobile which were nominated for service awards for best customer satisfaction."

Martin Christoph, Product & Terminal Management, T-Mobile

Experience & Industries

Felgo is a development company with over 15 years of experience in building applications for companies in these industries:


  • Industrial
  • Telecommunications
  • Medical & Life Science
  • Automotive
  • Transport
  • Retail
  • Finance
  • Insurance
  • Entertainment
  • Government


Felgo has its headquarters in Vienna (Wien), Austria and ranks among the leading app agencies in Europe.

Besides working on app development projects, Felgo offers the well-known Felgo SDK, a cross-platform app & game development framework that cuts development time and costs.


We use a wide range of technologies to realize mobile app projects. In addition to native development with Swift, Objective-C, C++, Java & Kotlin, we have a strong background on cross-platform app development with tools like React Native, Flutter, Unity or our own mobile app framework Felgo SDK.

We worked on multiple projects in these areas:


  • UI & UX Design
  • Sensors
  • 3D
  • Multimedia
  • Augmented Reality (AR) & Virtual Reality (VR)
  • Gamification
  • Card Games
  • Educational Apps, Serious Games
  • Connectivity (Bluetooth, NFC, MQTT, KNX)
  • Charts, Data Visualization
  • PDF Viewing and Editing
  • App Internationalization, App Localization
  • AI & Machine Learning
  • Security, Encryption
  • Blockchain, Cryptocurrency
  • Analytics, Telemetry
  • Image Scanning & Image Recognition, OCR
  • WebAssembly
  • Continuous Integration (CI) & Continuous Deployment (CD)
  • Backend Service Integrations, Tailored Backends

Long-Term Strategy: Go Cross-Platform!

Starting a new app project is a strategic decision for the future. Working with Felgo ensures that your app runs on iOS, Android, on Desktop systems, web browsers and on embedded systems like the i.MX6 platform or Raspberry Pi & Arduino.


With our established development approach, we plan ahead to be prepared for upcoming OS updates and new platforms like smart TVs or IoT devices.


Do you need more information or have an upcoming project?


Get an estimate!

Our team will contact you promptly to discuss next steps.

Mobile App Development from Wien (Vienna)