Custom Software vs. SaaS: When Does Building Your Own Actually Make Sense?
As a company that builds custom software, you might expect us to say "always build custom." But that would be terrible advice for most businesses, most of the time.
The truth is: SaaS tools are fantastic for solved problems. If your need is generic — email marketing, basic CRM, accounting, project management — there's probably a SaaS tool that does it better and cheaper than anything we could build.
Custom software makes sense when the answer to this question is "yes": Is your workflow or process a competitive advantage that off-the-shelf tools can't support?
When SaaS Wins
- Standard workflows: Email campaigns, basic sales pipelines, invoicing
- Well-defined categories: E-commerce platforms, help desk systems
- Rapid deployment needed: You need something working this week
- Maintenance burden matters: You don't want to think about updates
When Custom Wins
- Unique processes: Your workflow doesn't fit any template
- Integration complexity: You need multiple systems talking to each other in specific ways
- Competitive moat: The software IS your product or gives you an edge competitors can't buy
- Data ownership: You need complete control over your data
- Scale economics: SaaS per-seat pricing becomes more expensive than owning the code
Real Examples from Our Work
Custom Made Sense: Sgoura Notaries
No document automation SaaS handles Greek notarial documents correctly. The formatting requirements, legal language, and workflow are too specific. Building custom was the only option that actually worked.
SaaS Would Have Been Better: A Prospect We Turned Away
A small e-commerce store wanted us to build a custom inventory system. After reviewing their needs, we recommended Shopify + an inventory app instead. Cost: €50/month vs. €15,000+ for custom. They didn't need custom — they needed to stop over-engineering.
The Hybrid Approach
Often the best answer is: use SaaS for commodity functions, build custom for your unique processes.
Example: A client uses Stripe for payments (SaaS), Google Workspace for email (SaaS), but a custom internal tool we built for their specific operational workflow (custom). They get the best of both worlds.
Questions to Ask Yourself
- Can I find a SaaS that does 80%+ of what I need?
- Is adapting my workflow to the SaaS worse than the cost of custom?
- Will I outgrow the SaaS pricing model within 2 years?
- Is this process a genuine competitive advantage?
- Do I need to own this data completely?
If you answered "no" to most of these, stick with SaaS. If you answered "yes" to several, let's talk.