- 15 years building software in Germany
2026
Your One-Stop Destination for
Technological Solution
Based in Chemnitz, specializes in web, mobile, and AI development. With 15 years of expertise, we craft dependable solutions that grow with your business.
Years building production software
8
+
Platforms Built
15
+
Projects delivered across Europe
40
+
Client Retention
85
%
High-performance digital products built with precision, scalability, and efficiency in mind. By aligning design and development to create reliable solutions that support long-term growth.
Who we work with
End-to-End Support for Your Growth
Different stages require different approaches. Here's how we work with each.
Start Smart, Build Right
You need development that's efficient, doesn't create technical debt, and can adapt as you learn about your market.
- Focused MVP builds
- Flexible, future-ready architecture
- Transparent development costs
- Fast iteration cycles
Scale With Confidence
Your product works. Growth is exposing infrastructure limits. You need architecture for the scale you're approaching.
- Database & performance optimization
- Architecture redesign for scale
- Team augmentation
- Zero-downtime migration
Modernization With Constraints
Mission-critical systems. Complex integrations. Compliance requirements. You need partners who design inside your operational constraints.
- Deep legacy integrations
- Compliance-first architecture
- Enterprise-grade reliability
- Long-term partnership model
Capabilities
Built for Simplicity,
Designed for Performance
The same engineering rigor we apply to our exclusive digital products millions of records, sub-second inference, full data compliance applied to your platform.
Real-time at scale
Event-driven architecture, streaming pipelines, and millisecond inference engineered for production load.
Security by design
End-to-end encryption, zero-trust permissions and GDPR-compliant data handling baked into every layer.
Multi-region cloud
EU-resident infrastructure, multi-region failover and edge delivery without sacrificing local data sovereignty.
Modern stack, durable code
Typed, tested and documented from day one. Your codebase should be an asset five years from now not a liability.
Observability & SLOs
Tracing, metrics and structured logging from week one. Service objectives you can hand to your board.
Embedded with your team
We work as one squad with your engineers, designers and PMs Linear, Slack, GitHub, your tools and rituals.
Products App-concept Brought to Life
Built with care and guided by real user needs, our products combine thoughtful design and robust engineering to deliver reliable performance and lasting value.
Pitchtomatch
Smart discovery platform connecting founders, ideas, and opportunities based on relevance, not chance.
Umfrage.ai
AI-powered insight engine collecting feedback and turning it into clear direction for business decisions.
Lifely Family
A private space for your family to stay connected, share moments, and keep everyday life in sync. Simple communication and shared schedules!
C-AR.APP
Visual AI tool for automotive listings that upgrades ordinary car photos into clean, conversion-ready visuals.
Sajoki
Structured soft skills testing platform revealing how people communicate, collaborate, and perform in real workplace scenarios.
JobsNavi
Next-gen job navigation platform connecting talent with roles that truly fit, while simplifying hiring workflows for companies.
What we do
Three Areas of
Deep Expertise
We handle custom application development, emerging technology implementation, and system optimization end to end, from our offices in Germany.
Custom Application Development
We design and build customized applications from the ground up, combining clean architecture, intuitive interfaces, and reliable performance across web and mobile.
Emerging
Technology
We integrate advanced technologies into real products, helping you unlock new capabilities without unnecessary complexity.
Optimization & Infrastructure
We strengthen and scale your systems to perform under real-world demands, improving reliability, efficiency, and long-term maintainability.
Why App-Concept
What Sets Us
Apart
Fifteen years of building software. Four commercial products in operation. Based in Germany serving companies across Europe.
"We operate our own products in production. The architectural decisions and tradeoffs we face building JobsNavi or Sajoki apply directly to client work. That experience changes how we think."
App-Concept GmbH
01
We operate commercial products
JobsNavi, Sajoki, VIP Match and JobsFair run in production every day. The decisions we make for our own products directly inform client work we live with them.
02
Deep domain expertise
Our product portfolio is concentrated in talent and recruitment technology. That focus translates into pattern recognition generalist teams don't have.
03
Full visibility, throughout
Two-week sprints with live demos. You see code, progress and problems early when they're still fixable. No surprises at launch.
04
Code built for the long term
We write maintainable code, document decisions and choose technologies with longevity. Your codebase should be an asset five years from now not a liability.
Industries
Where We Have
Track Record
Six domains where we've delivered measurable results and the regulatory expertise to operate inside them.
01
Talent & Recruitment Tech
Four commercial products in this space. Deep expertise in matching algorithms, assessment systems and HR workflows.
02
Enterprise B2B Software
Multi-tenant systems, SSO integration, regulatory compliance and enterprise-scale architecture. Built for reliability.
03
Financial Systems
Payment processing, transaction systems and fraud detection. PCI compliance and real-time processing as standard.
04
Healthcare & Regulated
HIPAA compliance, patient data management and medical record systems. Compliance built into architecture from day one.
05
Marketplace & E-commerce
Multi-vendor systems, commission tracking, dispute resolution and fraud prevention engineered for scale.
06
IoT & Connected Systems
Real-time data streams, edge computing and hardware-software integration. Distributed architecture for connected devices.
Technology
Our Technology Stack
We pick proven, dependable technologies that match the problem not the hype cycle. These are the tools we ship in production today.
Frontend
Backend
Databases
Infrastructure
Get started
Ready To Discuss
Your Project?
Whether you’re a startup, a growing company, or an enterprise, it starts with a 30-minute video call with the engineer who’ll lead your project, friendly, focused, and with no obligation.
App-Concept.com GmbH
Beckerstraße 13, 09120 Chemnitz, Germany
Kreuzbergstraße 30, 10965 Berlin, Germany
Email: info@app-concept.com
Phone:: +49 371 24 35 129 014
Your data stays private, secure, and fully protected at all times