Business rules and modules
Approval flows, calculation rules, user scenarios and dependencies between modules form the basis of the development effort.
A custom software budget is shaped not only by the number of screens, but by the business problem to solve, process complexity, user roles, integrations, data volume and operational risks.
Approval flows, calculation rules, user scenarios and dependencies between modules form the basis of the development effort.
ERP, CRM, payments, external APIs, legacy systems and data migration increase the scope of analysis, testing and error handling.
Role-based access, audit logs, SSO, high traffic, redundancy and regulatory requirements directly affect the technical architecture.
The ranges are based on this calculator's assumptions and exclude VAT. The final price is set in a quote prepared after a requirements analysis.
| Project type | Typical scope | Estimated price | Timeline |
|---|---|---|---|
| Simple admin panel (MVP) | 1–3 modules, single role, standard interface, backend and database | €6,800 – €9,200 | 12–16 weeks |
| Automation system | 1–3 modules, multiple roles, workflows, external API connections | €13,200 – €18,000 | 22–29 weeks |
| Comprehensive admin panel | 4–8 modules, multiple roles, brand-specific UI/UX, reporting | €14,800 – €20,200 | 25–33 weeks |
| CRM / work tracking system | 4–8 modules, workflows, reporting, notifications | €18,800 – €25,400 | 31–41 weeks |
| Customer / dealer portal | 4–8 modules, ERP or accounting integration, reporting | €19,000 – €25,800 | 31–41 weeks |
| SaaS platform | Multi-tenant architecture, subscription payments, product research, cloud and DevOps | €29,800 – €40,600 | 47–62 weeks |
| Enterprise system | 9–15 modules, ERP, SSO, audit log, advanced security | €46,600 – €63,200 | 69–91 weeks |
Adding an iOS and Android mobile client increases the budget by about €4,600 – €6,400, and migrating data from a legacy system by €2,400 – €3,200. For business applications that run in the browser, see our web application development page; for the full process, see custom software development. You can also try your own scenario in the calculator above.
Successful projects don't start with coding; they start with discovery, process analysis, prioritization and a verifiable MVP scope. Controlled growth based on feedback after the first release reduces budget risk.
Explore our custom software serviceThe price of custom software is calculated based on the type (admin panel, CRM, SaaS, automation, customer portal or enterprise system), the number of modules, user roles, and the design and backend scope. Requirements such as ERP, accounting, CRM, payments, SSO, real-time data, reporting and mobile apps are separate effort items.
This tool provides an approximate project budget and timeline. Cloud resources, third-party licenses, SMS or email usage, maintenance and support, data cleansing and internal onboarding may not be included in the initial development estimate.
When comparing quotes, look not only at the initial development cost but also at the ongoing costs after the software goes live.
| Cost | Amount / frequency |
|---|---|
| Servers and cloud services | Monthly; grows with users, data volume and redundancy |
| Third-party services such as SMS, email and maps | Per use or monthly subscription |
| Payment provider fees | Percentage per transaction if you take online payments |
| External software licenses | Yearly, for ERP API access, reporting or security tools |
| Maintenance and support | Usually 15–20% of the initial development cost per year |
| User training and onboarding | Time your team spends during the transition |
Based on this calculator's assumptions and excluding VAT, an MVP admin panel starts at around €6,800, a CRM or work tracking system at €18,800, a SaaS platform at €29,800 and multi-module enterprise systems at €46,600. The final price is set in a quote prepared after scope analysis.
Off-the-shelf software has a lower upfront cost, but per-user license fees grow with your team and your processes have to fit the software. Custom software requires a higher initial investment, but has no license fees and fits your processes exactly. For companies with many users or unique processes, custom software is usually more cost-effective over a 2–3 year total cost of ownership.
It is calculated by analyzing business rules, number of modules, user roles, screens, integrations, security, reporting, infrastructure and quality requirements.
A simple MVP can take a few months. Enterprise systems with many modules, extensive integrations and high security requirements need a longer development schedule.
No. The tool gives a preliminary feasibility range. A final quote is prepared after analysis, user stories, data model, integration documentation and technical architecture decisions.
Cloud or server usage, third-party licenses, maintenance, support and new releases are usually planned separately from the initial development budget.
Maintenance covers security updates, bug fixes, monitoring, backups and small improvements. Annual maintenance is usually budgeted at 15–20% of the initial development cost. Servers, licenses and new features are not included.
The difference usually comes from scope. Before comparing, check whether business analysis, UI/UX design, testing, documentation, source code handover, server setup and post-launch support are included in the quote.