The verdict in three sentences
An internal web application industrializes your processes: approval workflows, roles and permissions, dashboards, integration with your existing IT system. In 2026, a Berlin mid-market company invests 50,000 to 150,000 EUR for a robust app delivered in 5 to 9 months. The decisive ROI factor is not technology but change management: an unadopted app is a dead loss.
Low-code vs custom for a mid-market company
Low-code (Power Apps, Retool, OutSystems) speeds up building simple internal tools but shows its limits on complex workflows, performance at scale and deep IT integration. Custom meets those demands at a higher budget.
| Criterion | Low-code | Custom 2026 |
|---|---|---|
| Initial budget | 20,000 - 60,000 EUR | 50,000 - 150,000 EUR |
| Annual licenses | 15,000 - 50,000 EUR/yr | 0 (infra 3,000-12,000) |
| Complex workflows | Limited | Unlimited |
| Deep IT integration | Partial | Full |
| Performance at scale | Medium | High |
| Delivery time | 2 - 5 months | 5 - 9 months |
| Vendor dependency | High | None |
For a mid-market company whose processes are strategic and high-volume, custom avoids costly recurring licenses and the low-code glass ceiling.
The building blocks of a 2026 internal app
A mid-market internal app is built from standard blocks whose pricing varies with complexity.
| Functional block | 2026 estimate EUR |
|---|---|
| Multi-level approval workflow | 12,000 - 30,000 |
| Granular roles & permissions | 8,000 - 20,000 |
| Dashboards & reporting | 10,000 - 28,000 |
| IT integration (ERP, HR, API) | 12,000 - 35,000 |
| Document management | 6,000 - 18,000 |
| Change management & training | 5,000 - 15,000 |
IT integration (ERP, HR tool, directory) is often the most underestimated line item: allow a margin, because internal APIs hold surprises.
Mini case study
Julien, operations director at an industrial mid-market company in Berlin (140 employees), wants to replace a purchase-approval flow run over email and spreadsheets. He invests 95,000 EUR in a custom app: multi-level workflow, per-department permissions, real-time dashboards, ERP integration. Each purchase approval dropped from 3 days to 4 hours. Across 400 approvals/month, the procurement team saves about 160 hours/month. At a loaded cost of 40 EUR/hour, savings reach 6,400 EUR/month, i.e. 76,800 EUR/year — the app pays for itself in under 18 months, before counting reduced errors and supplier delays.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
Low-code or custom for a mid-market company?
Low-code suits simple, non-critical tools. As soon as workflows get complex, volumes rise or IT integration is deep, custom becomes cheaper over 3 years despite a higher upfront budget.
How much do hidden low-code licenses cost?
Between 15,000 and 50,000 EUR/year depending on users and connectors. Over 3 years these licenses can exceed the cost of a custom build you own with no fees.
Why is change management crucial?
Because ROI comes from adoption, not code. Training, internal champions, clean UX and internal communication determine whether the app is actually used — otherwise the budget is wasted.
How long for a mid-market internal app?
Between 5 and 9 months in 2026, depending on the number of blocks and depth of IT integration. A department-by-department rollout (pilot then generalization) reduces risk and speeds adoption.
How do we integrate the app with our ERP?
Via the ERP's APIs or a dedicated integration layer. This is the priority to scope during discovery: an audit of existing systems prevents nasty surprises and schedule drift.
Let's scope your project. Describe the processes to tool, your existing systems and your user count: we price an internal app between 50,000 and 150,000 EUR with a change-management plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
