Serious app development in Germany costs typically €20,000 (pilot/MVP) to €250,000+ (complex platform) in 2026. The hourly rate for senior-led DACH development sits at €100–150/h. Below: exactly how the price breaks down — and an interactive calculator for your own investment range.
This table is for senior-led development in Germany — cross-platform with Flutter — at an effective €100–130/h. Sources: kigazon.com, itPortal24.de, gAIm Solutions, groenewold-it.solutions (all 2026).
| Tier | Examples | Investment range | Duration |
|---|---|---|---|
| Pilot / MVP Lean MVP or pilot — single platform or cross-platform, small backend, standard auth. | Appointment booking, customer login with self-service, field-service app with offline mode. | 20.000 – 50.000 € | 2–4 months |
| Business app Mid-sized business app — cross-platform with custom backend, roles, push, payments, standard integrations. | Service platform with admin dashboard, B2B ordering app, maintenance app with ERP integration. | 40.000 – 100.000 € | 4–7 months |
| Complex platform Complex platform — multi-tenant, real-time telemetry, compliance (GDPR/MDR/CRA), multiple frontends. | IoT platform with BLE telemetry and self-service portal, MDR-compliant health app, MES integration. | 100.000 – 250.000 € | 7–12 months |
| Enterprise Enterprise platform — dedicated cloud, AI components, multiple interfaces, custom security architecture. | Software-Defined Vehicle companion with OTA, regulated industrial IoT platform with on-prem AI. | 250.000 € + | 12+ months |
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The formula is simple. Senior-led DACH development costs €100–150/h (small agency), €150–200+/h (large agency). IntegrIT sits at the lower end at €100–130/h — possible because we don't run a pyramid hierarchy with three layers of managers per developer.
Cross-platform with Flutter is 30–50% cheaper than two separate native apps. Native is not automatically better — for most B2B apps Flutter is performant enough, and the cost difference often decides whether a project happens at all.
A pure display app is cheap. Add real-time sync, offline mode, multi-tenancy, or complex business rules and effort multiplies. Concretely: live chat adds 80–150 hours; a real-time dashboard 200–400 hours.
Standard UI with Material/iOS libraries: 10–15% of total cost. Custom design with own design system: 20–25%. Premium pixel-perfect brand-driven design: 30%+.
BaaS (Firebase, Supabase) saves backend effort for MVPs. Custom backend with NestJS or similar gives full control but costs more. Multi-tenant architectures with roles, audit trail, and EU compliance typically add 30–50%.
Each integration costs 30–60 initial hours: payment, ERP/CRM, identity providers, analytics, maps. Complex ERP connections (SAP, Microsoft Dynamics) often run 80–200 hours.
Development is only 60–70% of total cost of ownership. These items are forgotten in many initial budgets — and lead to nasty surprises later.
A lean MVP for a single platform with cross-platform development (Flutter), simple backend, and standard auth typically costs €20,000–€50,000 in Germany with a senior-led team. That's about 200–400 development hours at €100–130/h and a 2–4 month timeline.
The formula is hourly rate × effort. At IntegrIT Solutions the rate is €100–130/h (senior-led, no large-agency overhead). Effort depends on complexity, platforms (cross-platform vs. two native apps), design level, backend architecture, and number of third-party integrations.
Two separate native apps (iOS + Android) typically cost 30–50% more than one cross-platform app with Flutter. Cross-platform shares 85–95% of code between platforms — native means duplicating most of the business logic.
Pilot/MVP: 2–4 months. Mid-sized business app: 4–7 months. Complex platform: 7–12 months. Enterprise (multi-tenant, AI, compliance): 12+ months. Realistic project plans include a 20–30% buffer for App Store reviews, sign-off cycles, and requirements sharpening.
Hosting (€50–500/month depending on user count), app-store fees (Apple $99/year, Google $25 once), maintenance and updates (15–20% of initial development cost per year), plus third-party licenses (Sentry, Maps APIs, payment providers, etc.).
In the DACH market, €100/h is the floor for senior-led agency development. 2026 benchmarks: senior freelancer €80–130/h, small agency €100–150/h, large agency €150–200+/h. IntegrIT Solutions sits at the lower end of the agency band — full senior quality without large-agency overhead.
Offshore rates (€15–35/h) are tempting — total cost is often disappointing. Reasons: communication barriers raise hour count by 30–50%, missing GDPR/regulatory understanding causes costly rework, lower code quality doubles maintenance cost. One specific study (itPortal24, 2026): projects with Indian offshore teams often exceed initial budget by 3–4×.
Fixed price works when requirements are clearly bounded — typically after a kickoff workshop where scope, architecture, and acceptance criteria are pinned down. With very open requirements, time-and-material with sprint caps is healthier than fixed price; otherwise both sides end up in renegotiation.
A free initial call with Felix Maier (founder, 10+ years senior full-stack). You sketch your project; we give an informed estimate with concrete assumptions and reference projects from the portfolio.