Your own AI application or an off-the-shelf service: how to choose

What you are buying in an off-the-shelf service

An off-the-shelf service is someone else’s decisions about how the process should run, fixed in an interface. You pay for the fact that they have already been made and tested on many companies.

• Speed. Launch takes days, not weeks.
• A predictable price. The subscription cost is known in advance.
• Someone else’s way of working. The team adapts to the service, not the other way round.

As long as the third point does not get in the way, the off-the-shelf service is the right choice — and nobody should talk you out of it.

The signs that off-the-shelf no longer fits

• Workarounds. The team keeps a parallel spreadsheet because “you can’t do that” in the service.
• Manual transfer. Data is moved from one system to another by hand, every day.
• Paying for the unused. You keep an expensive plan for the sake of one feature.
• A limit on what matters most. The service will not let you do the very thing that sets you apart from competitors.

One sign is a reason to be patient. Three or more mean you are already paying for your own application — just with your employees’ time.

What your own application gives you, and what it costs

What you get

A process built around the way your team works, access to your own data without exports, and the ability to change the logic without waiting for someone else’s update.

What it costs

Development, maintenance and responsibility for its evolution. An application does not end at launch: it gains users, and users have questions.

When it is justified

When the process brings in money or saves substantial time — and when you are ready to run it as a product, not a one-off task.

The middle option people often forget

Between “putting up with off-the-shelf” and “writing our own” there is a third path: keep the off-the-shelf service as the core, and build a small application on top for exactly the part of the process the service does not cover.

• Cheaper. You are not rewriting what already works.
• Reversible. An add-on is easier to replace than a whole system.
• Verifiable. You can see whether the addition paid off before going further.

How to decide in a single meeting

1. Describe the process step by step. No “roughly”: who does what, and in which system.
2. Mark the workarounds. Every place where the team steps outside the service.
3. Count the time. How many hours a week go into these workarounds.
4. Compare with the cost of building. If the time saved pays back the development within a reasonable period, you already have your answer.

Frequently asked questions