How much does custom software cost? The 6 things that really drive the price

The honest answer to “how much does it cost to build an app?” is “it depends on what you build.” On its own, that answer isn’t very useful. In this article we explain, in plain language, what actually drives the price of a custom software or AI project, so you know what to look for when comparing quotes.

1. Scope: screens, features and user types

Scope is the biggest price driver. How many screens will there be, how many user roles (customer, staff, admin), and which actions will they take? The gap between a small tool that automates one task and a platform that takes payments, produces reports and has an admin panel is often measured in multiples.

2. Integrations

Every system your software needs to talk to, accounting software, CRM, e-commerce platform, payment provider, messaging channels like WhatsApp, adds work. If the other system has a well-documented API, integration moves quickly; if not, extra work is needed to move the data.

3. AI usage

AI projects have two cost lines: building the system and running it. Cloud-based models are usually billed per use, so the more the software is used, the higher the monthly bill. Open-source models running on your own hardware have no per-use fees but may need powerful hardware. The right choice depends on your usage volume and privacy needs.

4. Level of design

There is a real difference in effort between a clean, functional interface and a custom, animated, on-brand experience. Investing in design usually pays off on screens your customers use directly; for internal tools only your team uses, a simple design is often enough.

5. Where it runs

Software can run on your own computer, your own server or in the cloud. The cloud starts fast and scales easily but comes with a monthly cost; your own server gives full control over your data but needs setup and maintenance. This choice affects both the upfront cost and long-term running costs.

6. After launch: support and maintenance

Software isn’t finished on delivery day. Security updates, changes in connected systems and new needs all require regular maintenance. When you ask for a quote, always ask how support and maintenance will be handled.

The most effective way to lower cost: start small

Instead of trying to build everything on day one, starting with a first version (MVP) that solves the core problem reduces both budget and risk. Feedback from real users makes it clear what to invest in next.

Questions to ask when getting a quote

• Which features does the quote include, and which does it leave out?
• Which steps and what timeline will the project follow?
• What will AI and hosting cost per month, roughly?
• How will support and maintenance work after delivery?

At Webitro, instead of a fixed price list, we first listen to your idea, pin down the scope together and send you a clear, itemised quote.