Build vs buy: when custom software beats off-the-shelf SaaS

"Should we build it or buy it?" is one of the most important technology decisions a business makes. As a software studio we could simply say "build", but that would often be bad advice. Here is the honest framework we use.

Buy when the problem is common

If thousands of companies have the same need, such as accounting, email marketing or payroll, a good product already exists. It will be cheaper, more mature and better supported than anything you could build. Buy it, and spend your energy elsewhere.

Build when the process is your advantage

If the way you work is part of why customers choose you, forcing it into a generic tool can make you more like your competitors. Custom software makes sense when:

• Your workflow is unusual, and staff spend hours working around the tool.

• You are paying for several tools and connecting them with spreadsheets and copy-paste.

• Per-user pricing grows faster than your revenue as the team expands.

• You need features or integrations the vendor will not build.

• You need full control over your data, for compliance or for AI use.

Compare the real cost over three years

Compare subscriptions over three years, including expected team growth, with the cost of building and maintaining your own system. Remember to include the hidden costs on both sides: time lost to workarounds with SaaS, and hosting, support and updates with custom software.

The middle path

It is rarely all or nothing. Many businesses keep standard tools for standard jobs and build a custom layer on top: a portal, a dashboard or an automation that connects everything. This often gives most of the benefit for a fraction of the cost of a full build.

Buy what makes you the same as everyone else. Build what makes you different.