SaaS — Software as a Service — means accessing software over the internet on a subscription, rather than buying a license and installing it on your own servers. Email, accounting tools, CRMs and point-of-sale systems increasingly work this way, and for good reason: the provider handles hosting, security patches and updates, while the customer simply logs in and works.
For businesses, the appeal is straightforward. There's no upfront cost for servers or infrastructure, no in-house IT team required to keep things running, and access from anywhere — a real advantage for businesses with multiple locations or staff who need to work remotely. Updates and new features arrive automatically instead of requiring a costly, disruptive upgrade project every few years.
The trade-off is that you're depending on the provider's reliability and internet connectivity — a genuine consideration in areas with inconsistent power or internet infrastructure. This is why well-built SaaS products for African markets are increasingly designed with offline-tolerant features and lightweight interfaces that work reasonably well on modest connections, rather than simply porting a design built for reliable fibre elsewhere.
For a growing business deciding between building internal tools from scratch and adopting a SaaS product, the calculus is usually similar to the off-the-shelf-versus-custom question: if your operational needs are fairly standard, a mature SaaS product will almost always be faster to deploy and cheaper to run than reinventing the same functionality privately.