# SaaS vs custom software: which should you choose?

> Compare off-the-shelf SaaS and custom software across speed, cost, flexibility, ownership and operational fit.

**Kısa cevap:** Use off-the-shelf software when most requirements are standard and adapting the process is acceptable. Custom software becomes rational when unique workflows, critical integrations or repeated manual work create a measurable constraint. Start with the smallest scope that can validate the decision.

*Software · 7 min · güncellendi: 2026-08-02*

## Quick decision table

| Criterion | Off-the-shelf SaaS | Custom software |
| --- | --- | --- |
| Start | Fast | Requires discovery and build |
| Initial cost | Usually lower | Higher |
| Flexibility | Within product limits | Designed for the workflow |
| Maintenance | Vendor | Product owner and team |
| Data model | Standard | Business-specific |

## Start with SaaS when

- The problem is common and already well solved
- Speed matters more than differentiation
- Your process can adapt to the product
- You do not want to own a software product

## Consider custom software when

- Teams repeatedly move data between tools
- Licensing or seat models block growth
- The customer experience depends on a unique workflow
- Critical integrations cannot be made reliable with available tools

## Reduce risk with an MVP

Custom does not mean building the complete system at once. A small first release can validate the riskiest assumption with real users and give the next development decision evidence.

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İlgili hizmet: [MVP and product development](https://theboldmark.com/en/mvp-product)
Kaynak: https://theboldmark.com/en/guides/saas-vs-custom-software