“Do we subscribe to ready-made software or build something of our own?” — that debate fills many meetings. Both can be right. The mistake is choosing only by the first month’s price, without counting how your team really works — especially when sensors, warehouses, remote meter reading, or an online store tied to stock appear.
What SaaS means in practice
SaaS (subscription software) = you use the app in the cloud, pay monthly/annually, the vendor runs servers and updates. Fast start, low upfront cost. Examples: generic CRMs, online accounting, design tools.
It fits when your process looks like thousands of other companies and you do not want to run infrastructure.
What custom software means
Custom software = a web (or mobile) application built around your flows: roles, reports, ERP links, LoRaWAN meters, customer portals. Higher initial investment, but the tool follows the company, not the other way around.
It fits when the process is a competitive edge or subscriptions force parallel Excel.
When SaaS is the smart choice
- Standard process (simple invoicing, email marketing)
- Small team, limited time for an IT project
- You want to test an idea without a big commitment
- Critical integrations already exist in the product
When custom beats subscription
- Daily copy-paste between three or four apps
- Hardware (sensors, meters) with no native integration
- Access rules or reports no “Enterprise” plan includes
- Subscription cost × years exceeds a focused custom MVP budget
- You want data and code under control (hosting in Romania, export, continuity)
Myths we often discuss
“Custom is always prohibitively expensive.” Not always. A focused MVP can compare to 2–3 years of subscriptions plus lost hours.
“SaaS is always safer.” Depends on vendor and configuration. SaaS still means passwords, export, GDPR.
“We must pick 100% one side.” Many companies are hybrid: SaaS for HR or marketing, custom application for operations and IoT.
Short decision list
- Is our process unique or identical to others in the market?
- How many hours per week do we lose manually between systems?
- What if SaaS doubles price or removes a feature?
- Do we need links to sensors, accounting, eCommerce?
- Are we optimising this quarter or control over three years?
Most answers toward uniqueness and lost hours → a serious custom software conversation.
Total cost of ownership — not just the subscription
Note: licences × years + lost hours + cost of errors + export limits. Sometimes SaaS wins. Sometimes, by year 3–4, custom software is cheaper than “pay and adapt”. We do simple maths together, no fancy spreadsheet — just honesty.
When SaaS becomes risk
The vendor changes terms, removes an API, raises price per seat. If the whole business runs there, negotiation is hard. With custom on controlled hosting, you at least have export and continuity — not magic, but options.
Subscription vs investment — accounting view
SaaS is recurring expense, easy to stop. Custom has a visible upfront cost but can be amortised over years as an IT asset. Talk to your accountant; we quote in phases, not one black-box invoice.
Map the process before code
Sometimes we recommend two weeks of “whiteboard mapping”: steps, exceptions, who approves. It cuts expensive rework. SaaS can even be a prototype — see what is missing, then order exactly that gap.
Vendor lock-in — read the fine print
Export formats, API limits, data retention after cancel — read before you bet the company on one login screen. Custom is not automatically free of lock-in (hosting matters too), but you usually have more options if the relationship ends.
Industry-specific SaaS can be the right answer
Vertical tools for hotels, clinics, or logistics sometimes fit perfectly. Custom shines when you mix several domains — e.g. online sales plus warehouse sensors plus client portal — where no single SaaS covers the whole story.
One takeaway
Choose SaaS when the process is standard; choose custom when the process is the product. Most companies land between — and that is fine if the split is intentional.
How IOTNetWEB helps
We say plainly what makes sense: stay on subscription, go hybrid, or build tailored software — web platforms, monitoring, online stores, hosting. No ideology, clear steps and numbers.
Not sure which path you are on? Send a short description of how you work today — we answer in plain language, no pressure.
Posted on Aug 11, 2026.