When does the math on custom software beat a stack of SaaS subscriptions? A worked example for a 30-person UAE business over five years.
Custom software has a higher up-front cost than SaaS. That part is true. What is also true: over a five-year window, for a business of meaningful size, the cost crosses over and custom comes out cheaper. The crossover point is closer than most people think.
Below is a worked example for a 30-person UAE business — large enough to feel SaaS pricing, small enough that custom software is still on the table.
HubSpot Sales Hub Professional: ~AED 1,800/user/month for 10 sales seats = AED 18,000/month
Monday.com Pro: ~AED 50/user/month for 30 seats = AED 1,500/month
Zoho Books Premium: ~AED 200/month base + 5 users = AED 800/month
Slack Pro: ~AED 30/user/month for 30 seats = AED 900/month
Misc add-ons (PandaDoc, Calendly Teams, etc.): ~AED 1,500/month
Total: roughly AED 22,700/month, or AED 272,400/year. Over five years with conservative price increases: ~AED 1,500,000.
Discovery + build: AED 200,000 fixed price (mid-band of what we typically charge for a multi-module platform replacing the equivalent stack).
Hosting + monitoring + retainer: ~AED 7,000/month = AED 84,000/year. Over five years: AED 420,000.
Total over five years: AED 200,000 + AED 420,000 = AED 620,000.
Custom is cheaper than the SaaS stack from approximately year 2 onward. By year 5, the custom platform has saved approximately AED 880,000 versus the SaaS bill — and the codebase is owned by the business, not licensed.
Two important caveats. First, this comparison assumes the SaaS stack actually fits the business. If it doesn't (and for most operationally-distinctive businesses it doesn't), the SaaS spend is buying a tool that doesn't quite work, while the custom platform is buying one that does. Second, this comparison ignores the productivity cost of context-switching between four tools, which is real but hard to put a number on.
Below ~10 employees: SaaS is almost always cheaper because the per-seat math is favorable and you cannot amortize a build cost across enough people.
When your processes really do look like everyone else's: an off-the-shelf tool was built for that, and rebuilding it is paying to recreate the existing solution.
When the business is changing direction: custom software fits today's process. If today's process is being replaced next quarter, build later, not now.
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