What Does AI-Built Software Actually Cost? A Transparent Breakdown

If you've ever asked "how much does custom software cost?", you've probably gotten the most frustrating answer in business: "it depends."

And it does depend. But that doesn't mean the conversation has to end there. The software development market has real price ranges, predictable cost drivers, and -- increasingly -- transparent pricing models that let you budget with confidence.

This article breaks down what software actually costs across different approaches in 2026: traditional agencies, freelance developers, in-house teams, and AI development platforms. We'll be specific about numbers, honest about trade-offs, and transparent about where our own pricing fits in.

The Four Approaches to Building Software

Before comparing costs, let's define what we're comparing.

Option 1: Development Agency

You hire a company that employs developers, designers, and project managers. They take your requirements, plan the project, build the software, and deliver it. Agencies range from boutique shops (5-15 people) to large firms (100+ people).

Option 2: Freelance Developers

You hire individual developers directly, typically through platforms like Toptal, Upwork, or personal networks. You manage the project yourself or hire a freelance project manager.

Option 3: In-House Development Team

You hire developers as employees. They work exclusively on your software, understand your business deeply, and are available for ongoing development.

Option 4: AI Development Platform

You provide a brief describing what you need. The platform uses AI to generate, test, and deploy production-ready software. Human oversight and approval workflows ensure quality.

Cost Comparison: A Concrete Example

Abstract comparisons aren't useful. Let's use a specific, realistic project:

The project: A client portal for a professional services firm. Clients can log in, see their project status, view and download documents, submit requests, and receive notifications. The firm's team can manage projects, upload deliverables, and track time. Roughly 15-20 screens, user authentication, role-based access, email notifications, and document storage.

This is a mid-complexity business application -- not trivial, but not rocket science either.

Agency Cost

Typical range: EUR 35,000 - 90,000

| Phase | Estimated Hours | Cost (at EUR 120-150/hr) |
|-------|----------------|--------------------------|
| Discovery & requirements | 40-60 hrs | EUR 4,800 - 9,000 |
| UX/UI design | 60-80 hrs | EUR 7,200 - 12,000 |
| Frontend development | 120-160 hrs | EUR 14,400 - 24,000 |
| Backend development | 80-120 hrs | EUR 9,600 - 18,000 |
| Testing & QA | 40-60 hrs | EUR 4,800 - 9,000 |
| Project management | 40-60 hrs | EUR 4,800 - 9,000 |
| Deployment & documentation | 20-30 hrs | EUR 2,400 - 4,500 |

Timeline: 3-6 months

Ongoing costs: Hosting (EUR 50-200/month), maintenance and updates typically billed at hourly rates (budget EUR 500-2,000/month for ongoing development and bug fixes).

Pros:

• Full team with diverse expertise


• Structured project management


• Usually contractual guarantees


• Can handle complex requirements

• High upfront investment


• Long timelines


• Communication overhead between your team and theirs


• Scope creep and change requests can inflate costs significantly


• You're competing with their other clients for attention

• "Discovery phase" billed before any commitment to build


• Change requests billed at premium rates


• Post-launch support not included in initial quote


• Hosting and infrastructure managed at markup

Freelancer Cost

Typical range: EUR 15,000 - 45,000

Freelance developer rates in Western Europe in 2026:

| Experience Level | Hourly Rate | Monthly (full-time) |
|-----------------|-------------|---------------------|
| Junior (1-3 years) | EUR 50-80 | EUR 8,000-12,800 |
| Mid-level (3-7 years) | EUR 80-120 | EUR 12,800-19,200 |
| Senior (7+ years) | EUR 120-175 | EUR 19,200-28,000 |

For our client portal project, a competent mid-level freelancer might estimate 200-350 hours of work.

Timeline: 2-5 months (but often slower due to part-time availability or context switching between clients)

Ongoing costs: You'll need hosting (EUR 20-100/month) and budget for ongoing freelancer hours for updates and fixes.

Pros:

• Lower rates than agencies (no overhead markup)


• Direct communication, no middlemen


• Flexible engagement models

• Single point of failure -- if they're sick, on vacation, or quit, development stops


• You manage the project (or pay someone to)


• Quality varies enormously -- vetting is critical


• Usually specialized in either frontend or backend, rarely both at a high level


• No built-in QA process unless you set one up

• Project management time (yours)


• Finding and vetting the right person (weeks of interviews)


• Knowledge loss if the freelancer becomes unavailable


• Integration work if you need multiple specialists

In-House Team Cost

Typical range: EUR 180,000 - 400,000 per year (for a minimal team)

A minimal viable team for building and maintaining custom software:

| Role | Annual Cost (NL/BE, incl. employer costs) |
|------|------------------------------------------|
| Full-stack developer | EUR 70,000 - 100,000 |
| Frontend developer | EUR 60,000 - 90,000 |
| Part-time designer | EUR 25,000 - 40,000 |
| DevOps / infrastructure | EUR 35,000 - 50,000 (shared/part-time) |

Total: EUR 190,000 - 280,000/year for a small team, plus tooling, hardware, office space, training, and management overhead.

Timeline for our example project: 2-4 months (assuming the team is hired and onboarded, which itself takes 2-4 months)

Pros:

• Deep business knowledge over time


• Available for ongoing development and support


• Full control over priorities


• No per-project negotiation

• By far the highest ongoing cost


• Recruitment is time-consuming and uncertain


• Underutilization risk -- what does the team do between projects?


• Management overhead


• Employee benefits, training, equipment costs

AI Development Platform Cost

Typical range: EUR 1,800 - 42,000 per year

AI development platforms use subscription pricing. Using Turtleship's plans as a representative example:

| Plan | Monthly Cost | Annual Cost | Best For |
|------|-------------|-------------|----------|
| Solo | EUR 149/mo | EUR 1,788/yr | Individual projects, MVPs, small tools |
| Team | EUR 699/mo | EUR 8,388/yr | Growing businesses, multiple projects |
| Business | EUR 3,499/mo | EUR 41,988/yr | Agencies, larger organizations |

For our client portal project, the Team plan would be appropriate, putting the annual cost at roughly EUR 8,400 -- a fraction of any traditional approach.

Timeline: 1-4 weeks for initial build, with continuous iteration

Ongoing costs: Included in the subscription. Hosting, updates, and platform maintenance are part of the package.

Pros:

• Dramatically lower cost


• Much faster delivery


• Predictable monthly expense (no surprise invoices)


• Continuous updates and iterations included


• No people management required

• Limited to what the platform can build (complex or highly specialized systems may exceed capabilities)


• Newer approach -- less track record than traditional agencies


• Dependent on the platform's continued operation


• May not suit every project type

The Hidden Costs Nobody Talks About

Whichever approach you choose, budget for these costs that rarely appear in initial quotes:

Opportunity Cost of Delays

If your software takes 6 months instead of 6 weeks, that's 4.5 months of running your business on spreadsheets, manual processes, or inferior tools. What does that cost in lost efficiency, missed opportunities, or frustrated employees?

For many businesses, the speed advantage of faster approaches isn't just convenient -- it's financially significant.

Maintenance and Evolution

Software is never "done." Budget at least 15-20% of the initial build cost per year for maintenance, updates, and incremental improvements. With agencies and freelancers, this means ongoing hourly billing. With an in-house team, it's already covered (but you're paying whether you need it or not). With platform subscriptions, it's included.

Knowledge Transfer

When you build with an agency or freelancer, they hold knowledge about how your software works. If the relationship ends, transferring that knowledge to a new provider costs time and money. Budget for documentation and transition periods.

Security and Compliance

GDPR compliance, security audits, penetration testing, SSL certificates, data backup verification -- these aren't optional for business software handling personal data. Some providers include these in their pricing; others treat them as add-ons.

Training and Adoption

The best software is useless if nobody uses it. Budget time for training your team, creating user guides, and supporting people through the transition from old processes to new ones.

Total Cost of Ownership: A Five-Year View

Let's project our client portal example over five years, assuming moderate ongoing development needs:

| Cost Category | Agency | Freelancer | In-House | AI Platform |
|--------------|--------|------------|----------|-------------|
| Initial build | EUR 60,000 | EUR 30,000 | EUR 70,000 | EUR 0* |
| Year 1 maintenance | EUR 15,000 | EUR 10,000 | (incl.) | (incl.) |
| Year 2-5 maintenance | EUR 48,000 | EUR 32,000 | (incl.) | (incl.) |
| Annual team/subscription | -- | -- | EUR 200,000/yr | EUR 8,400/yr |
| Hosting (5 years) | EUR 6,000 | EUR 3,000 | EUR 6,000 | (incl.) |
| 5-Year Total | EUR 129,000 | EUR 75,000 | EUR 1,076,000 | EUR 42,000 |

*In-house initial build cost reflects salary during development period
**AI platform build cost is part of the subscription

These numbers illustrate why the approach matters so much for the bottom line. The in-house team makes sense only if you have continuous, ongoing development needs across multiple projects. For a single application or a handful of tools, it's the most expensive option by a wide margin.

How to Choose the Right Approach

Choose an agency when:

• Your project is highly complex or specialized
• You need a structured team with guaranteed availability
• Budget allows for EUR 40,000+ upfront investment
• You value having a contractual relationship with SLAs

Choose a freelancer when:

• Your project is well-defined and moderate in complexity
• You can manage the project yourself
• You have a trusted referral or strong vetting process
• Budget is EUR 15,000-40,000

Choose in-house when:

• Software development is continuous and core to your business
• You need a team permanently available
• You have the management capacity to lead a development team
• Your annual software budget exceeds EUR 200,000

Choose an AI platform when:

• You need business tools, portals, dashboards, or workflow applications
• Speed matters -- weeks, not months
• Budget predictability is important
• You want to describe what you need in business language, not technical specs
• You prefer a subscription model over large upfront investments

Our Pricing Philosophy

Since this article is published by Turtleship, we should be transparent about our own pricing decisions.

Our plans are structured around a simple principle: the cost of AI-built software should be proportional to the value it delivers, not the hours it takes to build. A client portal that saves your team 20 hours per week is worth the same whether it took two days or two months to build.

We publish our pricing publicly -- EUR 149, EUR 699, or EUR 3,499 per month depending on your needs. No hidden fees, no surprise invoices, no "discovery phase" charges before we commit to building anything.

This transparency exists because we believe the traditional model of custom software pricing -- where you don't know the cost until you've already invested weeks in requirements and negotiations -- is broken. You should be able to evaluate whether custom software fits your budget before you start, not after.

The Bottom Line

Custom software costs have ranged from "quite a lot" to "extremely a lot" for the past three decades. AI development platforms are changing that calculus by making professional-quality software accessible at subscription prices.

But cost shouldn't be your only criterion. Consider the timeline (how quickly do you need this?), the complexity (does this need specialized expertise?), the longevity (who maintains this in year three?), and the control (how much oversight do you want over the process?).

The best approach is the one that matches your specific needs, budget, and timeline. We've tried to give you the numbers to make that decision with clarity rather than guesswork.

Whatever you choose, invest in a clear brief. Whether you're paying EUR 5,000 or EUR 500,000, the quality of the outcome starts with the quality of your input. That's the one constant across every approach.