Custom software that truly reflects your processes — not the other way around
Custom software & apps for your business
Tailor-made web and mobile apps, company portals, workflow automation and SAP integration. From concept to launch — fixed price, German servers, GDPR-compliant.
Anonymized reference caseMid-sized trading company · Frankfurt, 65 employees+
Starting point
Manual Excel processes for order control and warehouse management — 3 full-time staff busy maintaining data every day.
Solution & result
Tailor-made order management portal with SAP integration, real-time dashboard and mobile app for warehouse staff.
70% time saved on order processing, 2 full-time positions freed up for value-adding work, error rate reduced to 0.
Off-the-shelf software never fits 100% — and still costs a lot
- Every company has unique processes — off-the-shelf software forces compromises that slow your employees down every day
- License costs grow with your team: what costs €500/month today will be €5,000 tomorrow
- Interfaces to SAP, DATEV or existing systems are missing or cost extra as a module — every time
Custom software that maps exactly to your process — a one-time investment, a lasting advantage
- Built for your requirements: no feature bloat, no license traps, no compromises on core processes
- Native SAP and DATEV integration plus interfaces to any of your systems — included in the fixed price
- Fixed-price quote after the discovery workshop: you know the cost before a single line of code is written
Scope of services
What App Development does for you
Web Applications
Tailor-made business web apps, company portals, customer self-service portals and SaaS platforms.
MVP in 8–12 weeks
Mobile Apps
Native iOS and Android apps as well as cross-platform apps (React Native) for your employees and customers.
iOS & Android from a single codebase
SAP Integration
Seamless connection to SAP S/4HANA, SAP Business One, DATEV and other ERP systems.
Native interfaces, no middleware surcharge
Workflow Automation
Digitization of manual business processes: approval workflows, invoice processing, document management.
Avg. 60% time saved on automated processes
Security by Design
GDPR-compliant development with security architecture from the start — OWASP standards, penetration testing.
GDPR + OWASP-compliant from day 1
Launch & Support
Deployment on German servers, complete documentation, SLA-based support and ongoing development.
<4h response time under SLA
Approach
How we work
Discovery Workshop
In-depth analysis of your processes, requirements, target groups and technical constraints — including a binding fixed-price quote.
UX & Architecture
Clickable prototype and technical architecture for validation before the first line of code — you see the product before it is built.
Agile Development
Development in 2-week sprints with working demos. No progress reports — you see real software.
Launch & Handover
Deployment on German servers, acceptance testing, employee training and complete documentation.
Clouderio turned our manual ordering process into a fully automated portal. What used to take 3 hours a day now runs in minutes — and our employees love the system.
Technology stack
What we build with
We work exclusively with proven, actively maintained technologies — no vendor lock-in, no exotic frameworks, no technical debt.
Web & Backend
- React
- Next.js
- TypeScript
- Node.js
- Python
- PostgreSQL
Mobile
- React Native
- Swift (iOS)
- Kotlin (Android)
- Expo
Cloud & Hosting
- AWS
- Microsoft Azure
- Hetzner (DE)
- Docker
- CI/CD
Integrations
- SAP S/4HANA
- SAP Business One
- DATEV
- REST / GraphQL
- Webhooks
Security
- OWASP Top 10
- GDPR by design
- Penetration testing
- E2E encryption
Reference projects
What we have already built
All projects anonymized. Details on request — in many cases we can put you in direct touch with the contact person at the client.
Order management portal
120 employees · Frankfurt
Starting point
Excel-based order control with 3 full-time staff maintaining data every day — error-prone and not scalable.
✓ 65% fewer manual processes · 0 booking errors since go-live
Mobile app for nursing staff
300 employees · Rhine-Main
Starting point
Paper-based shift handover and patient documentation — time-consuming, with information lost at shift changes.
✓ 4.8 ★ App Store rating · 200+ daily active users
Client portal & document management
45 employees · Bad Homburg
Starting point
Confidential documents sent by email and USB stick — GDPR risk, no versioning, no audit trail.
✓ Paperless client communication · GDPR audit passed
Is this right for me?
An honest assessment — before you call us
Custom software is not the right choice for everyone. We would rather tell you up front whether we are the right partner — than waste your time.
A good fit
- Companies with 20–500 employees and clear digitalization goals
- Manual processes (Excel, paper, email) that need to be automated
- Existing systems (SAP, DATEV, ERP) that need a modern interface
- Budget from €15,000 — you know what custom software is worth
- You can provide an internal point of contact for the project
- You want a real product — not a PowerPoint prototype
Probably not the right fit
- Startups that need an MVP for under €5,000
- Projects without a defined business process behind them
- "Just any app" without a concrete use case or target audience
- Anyone who cannot name an internal point of contact for the project
- Anyone who cannot or will not make decisions (too many layers of approval)
None of these apply to you? Then we will probably make a great team.
Frequently asked questions
Everything you need to know about App Development at a glance.
01How much does custom app development cost?+
A simple web portal starts at a fixed price of €15,000. More complex applications with SAP integration typically range from €40,000 to €120,000. After a free discovery workshop, you receive a binding fixed-price quote within 5 business days.
02How long does development take?+
For standard business applications, we plan 8–16 weeks from kick-off to production release. With 2-week sprints, you regularly see working versions — no black box, no waiting for the big finale.
03Can you connect our existing systems (SAP, DATEV, ERP)?+
Yes. SAP S/4HANA, SAP Business One, DATEV and other ERP systems are standard for us. In the discovery workshop, we determine which interfaces are needed and include them in the fixed price — no surprise surcharges after the project starts.
04Does the data stay in Germany?+
Always. We host exclusively on German servers (Hetzner, IONOS, Azure Frankfurt). Your data never leaves the EU — GDPR compliance is not an extra, it is our standard.
05What happens after launch — who takes care of updates and bugs?+
We offer SLA-based support from launch: response time <4 hours for critical bugs, monthly maintenance windows and regular security updates. Further development in ongoing sprints is available at any time on request.
06Can we split the project into phases to limit the risk?+
Yes, and we recommend it. We start with an MVP (minimum viable product) that covers the most important processes — usually ready in 8–10 weeks. Real user feedback then flows into phase 2. This reduces risk and secures ROI early.
Free assessment workshop — no obligation
In 60 minutes, we analyze your current situation and show you exactly which solution makes sense for your business — with a binding quote within 5 business days.