Off-the-shelf SaaS platforms are right for most businesses most of the time. If your process is fairly standard and the platform cost is reasonable, buying makes more sense than building — especially early in your business lifecycle.
Software Decision Guide | South Africa
Custom vs Off-the-Shelf Software: What South African Businesses Actually Need to Know
Honest, vendor-neutral guidance on when to buy and when to build.
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Most businesses default to buying. That is not always wrong.
The calculation changes when your process is genuinely non-standard, when the platform costs are compounding (per-user fees times 50 users times 5 years), when you need deep integration with systems the platform doesn't support, or when vendor lock-in is becoming a strategic risk.
This guide helps you run that calculation honestly.
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Signs a SaaS platform is the right answer
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Your process is fairly standard and the platform supports it well out of the box
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Your team size is small and the per-user cost stays reasonable
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You do not need deep integration with other systems
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The vendor's roadmap is improving the product in ways you need
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You want someone else responsible for hosting, uptime, and security
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You are pre-revenue or early-stage and flexibility matters more than control
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Signs custom software is the better answer
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Your process has industry-specific or company-specific logic that no platform handles well
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You are spending significant time on workarounds in the SaaS platform
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Per-user licence fees are becoming a major cost line as your team grows
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You need deep integration with other systems the platform does not support
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You operate in a regulated industry with specific data residency or security requirements
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The SaaS platform cannot be significantly customised without their enterprise tier
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Vendor lock-in is becoming a strategic concern — you would not be able to leave easily
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The real cost comparison
A custom CRM that costs R150,000 to build versus HubSpot Professional at R3,500/month per user for 10 users breaks even in 4.3 years — and after that you pay nothing in licences. If the platform cost scales with users, the crossover happens faster.
But that comparison only holds if the custom system is properly maintained and the business does not need the SaaS platform's advanced features. If you spend R30,000/year in developer time maintaining the custom system, the real comparison shifts.
We help clients run this calculation honestly — including our own fees — because the right answer for your business is what matters, not whether you end up using our services.
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Web Design Pretoria
Website design and web application development for South African businesses.
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The parent framework. Independent technology advice and custom software for South Africa.
View service ???Get an honest assessment for your business
We will tell you honestly whether you should buy or build — even if that means you do not need our development services.
FAQs
Questions you probably have.
Can you help us migrate from a SaaS platform to custom software?
Yes. We handle data export, migration, and custom system build as a single project. Most SaaS platforms have API or CSV export options that we use for data extraction.
How do we maintain custom software when the original developer is unavailable?
We write clean, documented code and use mainstream technology stacks. Any competent developer team should be able to maintain our work. We also provide source code handover and documentation as a project deliverable.
What if we start with SaaS and want to move to custom later?
That is a valid strategy. We help clients migrate from SaaS platforms to custom systems regularly. Starting with SaaS gives you a clear picture of what your actual requirements are before you commit to a custom build.
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