Five years ago, the standard advice was "buy SaaS, no need to reinvent the wheel." Today, growing companies are finding that the wheel works — it just doesn't fit on their road. This article explains why more businesses are moving from off-the-shelf tools to custom software, when it makes sense, and what it costs.
What changed
Two factors have shifted the balance toward custom development:
Development costs dropped. Modern frameworks (Next.js, Drizzle, Tailwind), cloud services (Vercel, Supabase), and AI-assisted coding mean that a web application which used to cost €80,000 can now be built for €16,000–€32,000. The difference isn't quality — it's tool productivity.
SaaS prices keep climbing. Salesforce license fees increase 10–15% annually on average. Slack's Enterprise plan costs €480 per user per year. For a company with 30 employees, that's €14,400 per year — for chat. Many companies pay more per month for 3–5 SaaS tools than a single custom application would cost to build.
When SaaS falls short: 6 real situations
1. Your process is your competitive advantage
A construction company uses SaaS tools everywhere the process is commodity — communication (Slack), documents (Google Workspace), accounting. But their quoting and job tracking system is custom. That methodology is their intellectual property — and a generic platform would force them to simplify an approach they've refined over fifteen years.
2. You need an integration that doesn't officially exist
Your e-shop, CRM, and accounting from three different vendors. Each has an API, but none has a native integration with the others. Zapier handles it at 80% — until you hit transaction limits, polling delays, and the inability to handle exceptions. As we explain in our REST API article, a custom integration is more reliable, faster, and you control it.
3. SaaS forces you to change your process to fit the software
"This would be great, but we can't set it up this way in our system." We hear this on every other consultation. The company has an established process that works. The SaaS tool doesn't support it — so they modify the process to fit the software. Instead of the software serving the business, the business serves the software.
4. You're paying for features you never use
The base plan gets you in at €20/month. But API access? Enterprise only. Automated reports? Professional only. Custom dashboards? Business only. You end up paying three times what you planned — and using 20% of the features.
Realistic example: A marketing agency paid €180/month for a project management tool. They used tasks, calendar, and time tracking. The other 80% sat untouched. A custom application with exactly this scope cost €7,200. Payback: 40 months — and from that point on, the app costs only hosting (approximately €20/month).
5. Your data is locked in with the vendor
When you cancel your subscription, you can export your data — but in a format you can't build anything from. CSVs with IDs that reference nothing. JSON without relational links. Vendor lock-in means the longer you use a SaaS, the harder it is to leave.
Custom software = your data in your database, on your server, in a standard format. You can migrate, extend, or switch anytime.
6. You're growing and the system isn't growing with you
In the beginning, Shopify was enough. Now you need B2B price lists, individual customer discounts, automatic syncing with your accounting system, a custom shipping module. Each plugin costs €20–80/month. You have eight. And it still doesn't do exactly what you need.
Decision framework: SaaS or custom?
| Criterion | SaaS | Custom Software |
|---|---|---|
| You need a solution in under a month | Yes | — |
| Process is standard (invoicing, email, chat) | Yes | — |
| Process is your competitive differentiator | — | Yes |
| You have specific integration requirements | — | Yes |
| You plan 10+ users long-term | — | Yes (lower TCO) |
| Data is strategic | — | Yes |
| Budget under €4,000 | Yes | — |
| Budget €8,000+ and clear requirements | — | Yes |
What custom software costs: realistic price ranges
| Project type | Timeline | Cost | Example |
|---|---|---|---|
| Simple internal app (5–20 users) | 4–8 weeks | €6,000–€12,000 | Order entry, invoice approval |
| B2B portal | 6–12 weeks | €12,000–€24,000 | Product catalog, ordering, history |
| Complex business system | 3–6 months | €20,000–€60,000 | CRM + invoicing + warehouse + reports |
| Platform for external users | 4–8 months | €32,000–€80,000 | Marketplace, SaaS product |
For comparison: 5 SaaS tools at €120/month per user = €72,000/year for 10 users. A custom system with similar scope pays back in 2–3 years — and then the operating cost is just hosting.
What happens when you choose wrong
Real story: A mid-size building materials distributor implemented an enterprise ERP for €160,000. Implementation took 18 months. After a year, they discovered they weren't using 60% of the modules and the rest had to be wrapped in Excel. Total costs including lost productivity: estimated €320,000.
Lesson: a bad enterprise implementation is more expensive than building custom from scratch.
What the custom development process looks like
In our complete guide to web application development, we describe this step by step. Short version:
- Analysis (1–2 weeks): We map processes, requirements, and integrations. Output: technical design and cost estimate.
- Design (1–2 weeks): Wireframes, database architecture, technology selection.
- Development (4–16 weeks): Iterative development with weekly demos. You see progress, not wait 3 months for a "big reveal."
- Testing (1–2 weeks): Acceptance testing, fixes, deployment.
- Operation: Hosting, monitoring, maintenance. On your server or in the cloud.
Key difference from SaaS: after development, you own the code. No monthly license fees. Operating costs at hosting level (€40–200/month depending on scale).
When to start thinking about switching
If you found yourself in three or more of the situations described above — it's time to think about a change. You don't have to switch immediately. Just sit down and calculate: how much you pay monthly for SaaS, how many hours per week your team spends working around their limitations, and what a solution that does exactly what you need would cost.
At BASAD Studios, we build custom web applications for Czech and Slovak businesses. From internal systems to client portals. If you're considering whether custom development is the right path for you, get in touch or check out our web application service.