We builddigital productsthat have to work.
We build mobile, web and backend products end to end. Much of that work has been in healthcare and regulated hardware, where software is audited and a defect has to be reported. We work the same way in industries that do not require it.
Services
One team for the whole product: strategy, design, apps, web and the infrastructure underneath. Take the parts you need, or give us all of it.
Mobile Apps
Native iOS and Android, built to still be maintainable in three years.
SwiftUI and Jetpack Compose on top, Kotlin Multiplatform underneath: the logic is written once, each platform still feels like itself. Offline-capable and accessible throughout.
- Native iOS & Android
- Kotlin Multiplatform
- Offline-first architecture
- App Store & Play releases
Web Platforms
Portals, dashboards and products that carry real operational load.
Marketing sites and dense operational dashboards alike, responsive and quick, built on a front-end architecture your own team can still work in after we hand it over.
- Web apps & portals
- Dashboards
- Design systems in code
- Performance & accessibility
Backend & Cloud
Data, APIs and infrastructure that stay up and survive an audit.
APIs, data models and cloud infrastructure designed for scale and observability, with the traceability regulated clients ask for built in from the first migration onwards.
- API & data architecture
- Cloud infrastructure
- Security & compliance
- Monitoring & operations
Product & UX Design
Turning complex problems and workflows into clear, straightforward experiences.
We work with you to understand what matters, frame the right problems to solve, and turn complex workflows into clear, straightforward products and services.
- Discovery & product strategy
- User research & service design
- Prototyping, product and UI design
- Design systems
Strategy & Consulting
A second opinion from people who have already shipped it themselves.
Architecture reviews, technical due diligence, roadmap and scoping. We can also put an experienced team next to yours until the product ships. You get findings you can act on.
- Discovery workshops
- Architecture review
- Technical due diligence
- Team augmentation
Most projects start with a workshop. We scope it together before anyone writes code.
Get in touchsouth_eastAI
Clients arrive with one of two questions: what a model can do inside their product, or what it can do inside their own company. The answers are different.
In your product
Features where a model does work the product depends on.
We find where it earns its place, then build it in properly: evaluation, guardrails, cost control, and a sensible fallback for when it gets something wrong.
- LLM & assistant features
- Document & image processing
- Evaluation & guardrails
- Data pipelines
In your operation
Your own processes and data, measured first and then made faster.
We start with where the hours actually go and where the data sits, then automate the steps a model can genuinely take over. Measured before and after, so the gain is a number.
- Process analysis
- Data analysis & reporting
- Workflow automation
- Internal tooling
Work
Products carrying real-time hardware data, accuracy a clinician relies on, and compliance that has to hold up to an audit. We work to the same standard where none of that applies.
Paragonix
Real-time logistics for organ transplants

Paragonix Technologies is transforming organ transplant logistics. Transplant teams need to know the exact condition of an organ in transit, continuously and with an audit trail. We designed and built the apps and web platform that make that possible: live monitoring, integration with IoT tracking hardware, and the backend architecture behind it.
Inventory
Field inventory that matches reality

Medical devices in the field are a logistics problem with a clinical deadline: every unit has a location, an expiry date and, for the cooled containers, a freeze duration that decides whether it can be used at all. The app keeps one scanned record of it: stock in and out by barcode, deployments confirmed at the point of use. The inventory then reflects what is actually in the field rather than the last time someone updated a spreadsheet.
myReha
Personalised therapy at scale

nyra health offers digital therapies for cognitive and speech rehabilitation. Nicebyte helped nyra health develop a mobile platform that delivers personalized training programs to patients recovering from neurological events such as stroke or brain injury. We supported the creation of an engaging, user-friendly app backed by a data-driven backend to track progress and outcomes over time.
Scarletred Vision
Computer vision in the user’s hand

Scarletred Vision leverages AI and digital imaging to revolutionize dermatology diagnostics. Before founding Nicebyte, our founders worked with Scarletred to create mobile applications for iOS & Android that allow users and healthcare providers to track skin changes remotely and accurately. They provided mobile development, image processing integration, and a sophisticated user interface designed for both patients and professionals.
Industries
We know regulated, data-heavy domains best, and we work well outside them. What these projects have in common is complexity.
Health & Medtech
Clinical tools, patient apps and connected devices under HIPAA, GDPR and MDR.
Logistics & Operations
Real-time tracking, field workflows and the dashboards that keep operations honest.
Connected Devices & IoT
Hardware that talks to an app, and an app that makes sense of the data.
B2B & Enterprise
Internal platforms, portals and integrations into systems that cannot be replaced.
Consumer Products
Apps that have to earn a place on someone’s home screen and keep it.
Fintech & Payments
Money moving between people and systems, where an edge case is someone’s account.
Anything data-heavy
If it is complex, regulated or full of edge cases, it is the kind of work we like.
About

Nicebyte is a digital agency in Vienna. We are engineers and designers who got tired of watching good ideas die in bad execution, so we do the whole thing: discovery, design, code, release, and everything after.
Our founders spent years building regulated software before Nicebyte existed — medical imaging, clinical platforms, transplant logistics. That is where we learned that security, traceability and accessibility are architecture decisions, not a checklist bolted on at the end. We build that way whatever the industry, and we work with teams across Europe and the US.
Small team, senior people
You work with the people writing the code. No account layer, no hand-off to a junior bench after the pitch.
Built to be handed over
A conventional stack, decisions written down, tests your own pipeline can run. If your team cannot maintain the code without us, we have built you a dependency.
Compliance shapes the architecture
GDPR, HIPAA and security reviews decide how data is stored and who can reach it. Those calls are cheap at the start and expensive to retrofit.
We push back
The fastest way to lose a budget is building the feature nobody asked for. If that is where a project is heading, you hear it from us early.
The team

Martin Daum-Gruber, MSc
CEO & Co-Founder

Stefan Edler, MSc
CEO & Co-Founder · iOS Lead

Sebastian Marschall, BSc
CEO & Co-Founder · Android Lead

Moritz Tomasi, BSc
Web Lead

Tom Wawrosz, BSc
Web Developer

Samanta Mika, MSc
Web Developer

Juraj Škorvánek, MSc
Android Developer

Stefan Stumpfl, MSc
iOS & Web Developer

Phil Samhaber
UI/UX Lead

Igor Zagnienski, BEng
UI/UX Designer

Daniela Castro, BA
UI/UX Designer
Careers
At Nicebyte, we’re not just building software, we’re building a culture where people feel proud of the work they do and the impact they create.

No open positions
right now.
We hire when we meet the right person, not when a vacancy opens. If you build the kind of software described on this page, write to us anyway. Send a project you are proud of, a repository, or a paragraph on what you actually want to work on.
Send a speculative applicationnorth_eastLet’s build
something good.
Start here
hello@nicebyte.ionorth_eastTell us what you are trying to build and where it is stuck. We will come back within two working days, either with questions or with a straight answer on whether we are the right fit.
Office
Nicebyte GmbHArgentinierstraße 39a
1040 Vienna
Austria
Local time