Off-the-shelf or custom software?

Short answer

If your business looks like the standard process in your industry, off-the-shelf software is cheaper and faster. If your process is different, you need to bring several programs together, or your team works around the software in spreadsheets, custom software or a setup on a ready-made core is the better route. The five questions below show which one fits you.

By Anıl Kölmük, founder of Pirdir · Last updated: 27 October 2026 · 2 min read

A single black cube and a single orange cube among light-coloured cubes

The three routes compared

Criterion	Off-the-shelf	Built on a ready-made core	Custom software from scratch
When it fits	Standard process	Partly different process	Entirely unique process
Time to start	Days	Weeks	Months
Upfront cost	Low	Medium	High
Changes	Limited	Easy	Easy, but expensive
Maintenance	With the vendor	With the vendor	In-house or under contract

To compare the three paths on equal terms, work out the total over several years. The default figures are examples; enter the quotes you have for off-the-shelf and fully custom software.

Total cost of the three pathsEuro, excl. VAT

Number of usersYearsOff-the-shelf: monthly fee per user (€)Ready core: setup (€)Ready core: monthly fee per user (€)Fully custom: development cost (€)Fully custom: yearly maintenance (% of development)

Off-the-shelf–

Built on a ready core–

Fully custom–

Calculation: off-the-shelf = users × monthly fee × 12 × years; ready core = setup + users × monthly fee × 12 × years; fully custom = development + development × maintenance rate × years. The ready-core defaults are Pirdir’s prices.

The risk in each route

Off-the-shelf software: if the process doesn’t fit, the team works outside the software in spreadsheets and WhatsApp, and the software falls out of use.

Built on a core: requests beyond the core’s limits need extra development.

From scratch: the scope grows, time and budget overrun, and if the team that built it breaks up, maintenance gets hard.

Before you decide

Draw today’s process as a flow, not just notes on paper.

Use free trials of off-the-shelf products with real work for a week.

Look at which spreadsheets are still kept alongside the software.

If you’re considering custom software, ask for a clickable prototype first.

MapWeek 1

Draw today’s process as a flow. Who does what, in which order; one line per step.

TrialWeek 2

Try off-the-shelf tools with real work. Use the free trials for a week with real records.

GapsEnd of week 2

Count the work left outside the tool. Which spreadsheets and WhatsApp groups are still needed?

PrototypeWeek 3

Ask for a prototype of the custom option. Click through the screens before anything is coded.

DecideWeek 4

Compare the three paths on equal terms. Few gaps: off-the-shelf. Many gaps: a build on a ready core or fully custom software.

An example decision process: in four weeks you choose with tested facts instead of guesses.

Set up alongside it

They connect to the same core and share customers, documents and users.

CRM softwareContacts, calls and deals on one card.

Field service management softwareEvery job in one place, from the first call to the invoice.

Inventory management softwareBarcode stock movements and low-stock alerts.

B2B portalDealer-specific prices, online orders and account balance.

You’ve read the guide; now let’s look at your business.

On a 20-minute call we listen to how your business works, and we send you in writing which route fits you and what it would cost.

Book a call Or describe your software in 3 questions

Frequently asked questions

Ask anything not covered here on the call, and we’ll send the answer in writing too.

Why isn’t off-the-shelf software enough?

Off-the-shelf products are built for an average business. The further your process is from average, the more manual work piles up around the software.

Is custom software more expensive?

The upfront cost is higher. When it’s built on a ready-made core, the gap narrows, and in the long run the cost of manual work has to be counted too.

Is it possible to begin with off-the-shelf software and move to custom later?

Yes. If you start with a product that lets you export your data, switching later is much easier.

Which route does Pirdir recommend?

It depends on the work. If off-the-shelf software is enough, we tell you so; Pirdir builds on a ready-made core and develops from scratch when needed.

Let’s hear about your business in 20 minutes.

The call is free. By the end you’ll know which route fits you, how long it will take and what it will cost.

We listen to your processWhere customers come from, who finishes the job, where things get stuck.

We show you the screenWe walk through the template for your industry, live.

We send a written quoteModules, timeline and price, itemised.

On the call you’ll speak with Anıl and Hatice. They are also the ones who build your software.