Custom Software vs. Off-the-Shelf SaaS: An Honest Framework
Custom software is not always the answer. Sometimes a ₹2,000-a-month subscription is genuinely better. Here is how I advise clients to decide.
I build custom software for a living, so you would expect me to always recommend it. I don't. Some of the best advice I give in discovery calls is to not hire me and use a ₹2,000-a-month tool instead. Custom software is a serious investment, and it is only the right one under specific conditions.
When off-the-shelf wins
If your process is standard, SaaS products have refined it over thousands of customers. Invoicing, basic appointment booking, email marketing: you will not beat these tools on features per rupee, and you should not try.
The rule is simple. If you can change your process slightly to fit a good tool, and that tool costs less per year than a custom build costs once, use the tool.
When custom software wins
Custom wins when your process is your competitive advantage. A coaching institute whose batch and test methodology differs from everyone else should not flatten it to fit a generic LMS. A manufacturer whose scheduling logic took a decade to refine should not outsource it to a tool that treats every factory identically.
Custom also wins on arithmetic at scale. Per-student, per-seat and per-order pricing means your software costs grow with your success. At some point, and it can be calculated exactly, owning the asset becomes cheaper than renting it forever.
And custom wins when integration is the real problem. When your team spends hours copying data between five tools that refuse to talk to each other, the glue is the product.
The questions I ask in discovery calls
Is this process genuinely different from your competitors, or does it just feel that way? What does the SaaS alternative cost over five years at your projected scale? What happens to your data and workflow if that vendor doubles prices or shuts down? How many hours per week does your team spend working around your current tools?
Honest answers to those four questions usually make the decision obvious, in one direction or the other.
The hybrid path most businesses actually take
In practice the best architecture is often boring: use excellent off-the-shelf tools for standard functions, and build custom software only for the core process that makes you money. That is where an engineer who understands business earns their fee.
Written by Abhinav Saxena, founder of Kodinav, an independent software studio. Need this built properly? Book a free discovery call.