Custom system or off-the-shelf software: when each one pays off

Every growing company hits this point. The spreadsheet can't keep up, the team wastes time copying data from one tool to another and someone asks: do we subscribe to off-the-shelf software or build our own?

The comparison almost everyone makes is the wrong one: one option's monthly fee against the other's project budget. The right comparison looks at three things. What each option costs over 5 years, how much of your process it really covers and who keeps the data.

Off-the-shelf software: quick to start, costly to scale

Off-the-shelf software has real advantages. You can start using it tomorrow. The vendor handles maintenance. Thousands of companies have already tested the basic features before you.

The cost, however, grows with the company. Pricing is usually per user, per plan or by volume. And prices go up. According to Vertice, a software procurement platform, in a page updated in July 2026, SaaS price inflation hit 16.4% in June 2026, the highest monthly rate on record, up from 13.2% in the first quarter of the year. Vertice itself puts it in perspective: that's almost 4 times US consumer inflation.

Other numbers from Vertice's SaaS Inflation Index 2026 point the same way:

• SaaS spend per employee reached about $9,100 at the end of 2025, up from $8,700 in 2024 and $7,900 in 2023;
• 60% of vendors deliberately disguise price increases.

And much of what companies pay for doesn't even get used. Zylo's SaaS Management Index 2026, cited in an article updated on March 19, 2026, shows the average organization uses only 54% of the licenses it pays for. Even at companies with up to 500 employees, estimated waste on idle licenses is $3.8 million a year. These are figures from companies Zylo tracks, not the Brazilian market, but the mechanism is the same at any size: licenses bought per user, used by half.

Custom system: costlier to start, truly yours

A custom system flips the math. The investment comes first. As a market reference, Clutch's pricing page shows that the most common range for software projects reviewed on the platform is between US$10,000 and US$49,999, with an average of US$132,480. These are global numbers, useful only as an order of magnitude, and the article on how much a custom web system costs explains what moves that price.

In return, you get:

• Your process, your way. The system follows how the company works, not the other way around.
• No per-user fees. Hiring 20 more people doesn't change your software bill.
• Integration where it counts. The system talks to the ERP, the bank, the payment gateway and the WhatsApp you already use.
• Code and data in your name. No one raises the price or changes the rules halfway through.

There are costs here too. There's the time until the system goes live, the monthly maintenance and the risk of choosing the wrong builder.

How to compare total cost over 5 years

Run both numbers over the same horizon.

Off-the-shelf software: license per user × number of users × 60 months, plus price increases, plus implementation, plus integrations, plus the extra tools to cover what it doesn't do.

Custom system: project price, plus monthly maintenance × 60 months, plus hosting.

Price increases change everything. If prices rose 16.4% a year, the peak Vertice measured, a subscription would cost more than double in 5 years, without you adding a single user.

When off-the-shelf software pays off

• The process is standard across the market: accounting, payroll, email, scheduling.
• Few people will use it, and that number shouldn't grow much.
• You need to start this week.
• The process isn't what sets your company apart from competitors.

When a custom system pays off

• The process is your edge, and bending the company to fit the software would cost you that.
• The per-user bill grows with the team.
• You already stitch together three or more tools, with a spreadsheet in the middle, to complete one flow.
• You need integrations that off-the-shelf software doesn't offer or charges extra for.
• The data is a business asset, and you want to own it.
• You'll sell the software to your own customers, as a SaaS.

There's also a middle ground, and it's often the smartest: off-the-shelf software for what's standard, your own system for the core of the business, with the two integrated.

Ask who owns the data

Before signing up for any off-the-shelf software, get it in writing: can you export all the data? In what format? How long does it stay available after you cancel? What's the cap on annual price increases? If the answers are vague, the cost of leaving will be high.

How we do it at the Studio

LCX, a travel company operating in more than 10 countries in South America, had one system per country. We merged everything into a single system, which went live in 29 days. It's the kind of case where custom solves what several separate tools can't.

On our projects, the price is fixed after discovery and the deadline is written into the contract. The code, files and access stay in the client's name. The dev team is our own. And every system ships with an AI agent that runs daily, flags failures, suggests improvements and checks that the data makes sense.

If your company already pays for several tools and still closes the process in a spreadsheet, it's worth running the numbers on your own system with our custom system development service.