Custom software, SaaS or low-code?
The three options solve different problems. The question is not which is more modern, but how different your process is, where the data must stay and who maintains it later.
First, identify the type of problem
If the process matches the industry standard (bookkeeping, invoicing, standard attendance), a mature SaaS product is usually the least effort. If the process is part of your competitive advantage (quoting rules, routings, subcontract settlement), forcing it into a generic tool creates manual workarounds. If the process is still changing and business users need to adjust forms, low-code is the cheapest to adapt.
In short: the more standard the process, the more you can buy; the more distinctive it is, the more you need to own it.
What each option really is
- SaaS: fast to start, annual subscription, vendor handles upgrades. The trade-off is adapting your process to the product, with limits on deep integration and custom reporting.
- Low-code: forms, approvals and dashboards are quick to build, and business users can participate. Complex logic, performance and long-term maintainability depend on the platform.
- Custom development: modelled on your business, with control over permissions, interfaces and data ownership. It requires clear requirements, ongoing maintenance and delivery quality checks.
Five criteria
- Process distinctiveness: does this workflow directly create revenue or cost advantage? If yes, custom is worth considering.
- Data ownership and compliance: can customer records and process parameters sit in a third-party cloud?
- Integration: do you need two-way sync with ERP, MES, finance or external platforms? More interfaces expose more product limits.
- Three-year cost: compare subscription, implementation, change requests and manual labour, not only the first-year quote.
- Who maintains it: with an internal technical team you can accept more flexibility; relying entirely on a vendor favours stability and replaceability.
Common mistakes
Treating a low price as low cost while staff spend hours exporting spreadsheets. Buying several systems without a shared customer, material and supplier coding scheme. Running core transaction logic on low-code until nobody can explain the fields. Writing requirements as screens only, without roles, permissions and exception flows.
A workable sequence
Map the current process and data flow, mark the three most labour-intensive steps, then check whether those steps are industry-standard. Run a narrow pilot (one workshop, one product line, one customer type) and decide from the result whether to configure further, extend with low-code, or move to custom development.
If custom development is the answer, split scope into "must launch" and "phase two" so the main flow closes first.
Questions we often hear
Is custom development always more expensive than SaaS?＋
Not necessarily. Upfront cost is usually higher, but if the business relies on manual workarounds, repeated exports and several overlapping subscriptions, the three-year total can approach or exceed a custom build. Compare subscription, implementation, labour and process cost together.
Can low-code replace custom development?＋
Low-code fits processes that are fairly standard but change often, and where business users adjust forms and approvals. Complex permissions, deep integration, high volume or specialised calculation still need code. A common pattern is low-code around the edges with core logic in a maintained application.
Which module should we start with?＋
Start with the module where data breaks most clearly, involves the fewest roles and can be accepted within two or three months. Proving one complete flow before expanding is easier to control than launching every module at once.
Need help judging the options?
Describe your workflows, existing systems and the most labour-intensive steps, and we can assess configuration, low-code or custom development.
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