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Square

App development cost calculator

Pick what you are building and get an instant cost and timeline range. Everything below is derived from our published EUR 35-55/hour band and the hour bands we actually plan against, so you can check the arithmetic yourself rather than take a number on trust.

What are you building?
Platform
Complexity

Indicative cost range

€5,250 – €13,250

Rough timeline: 8–16 weeks·Estimated effort: 150–240 hours

Indicative only, from our public €35–55/hr band, not a quote. A written estimate for your actual scope is free.

Get a scoped estimateTalk to us

How the estimate is calculated

There is no pricing table behind this calculator. Cost is always hours multiplied by our published hourly rate, and nothing else:

estimated cost = hours x EUR 35-55/hour

Each option you pick maps to an hour band drawn from work we have actually delivered. That band is multiplied by the rate band to produce a cost range, then rounded outward to the nearest EUR 250 so the range shown always contains the computed one. Timelines come from effective engineering hours per calendar week for the team size the project needs, not from a calendar we pick to look fast.

The rate basis

Square bills EUR 35-55 per hour depending on seniority and engagement length. That band is the only price input here. A longer delivery calendar does not earn a discount, because the same scope costs the same hours; only genuinely expedited delivery carries a premium, and it is a real coordination cost rather than a markup.

A worked example

A standard-complexity web MVP, taking the arithmetic step by step:

Hour band for a standard web MVP
150 to 240 hours
Low end
150 h x EUR 35/h = EUR 5,250
High end
240 h x EUR 55/h = EUR 13,200
Rounded outward to EUR 250
EUR 5,250 to EUR 13,250
Delivery
8 to 16 weeks

The same build taken to full production quality instead of an MVP runs 380 to 560 hours, which is EUR 13,250 to EUR 31,000 over 11 to 25 weeks.

Indicative hour bands by project type

These are the bands we plan against, before the platform multiplier. Multiply by EUR 35-55/hour for the cost range.

Project typeSimpleModerateComplexEnterprise
Web application120-200 hEUR 4,000 - EUR 11,000220-360 hEUR 7,500 - EUR 20,000380-600 hEUR 13,250 - EUR 33,000650-1000 hEUR 22,750 - EUR 55,000
Mobile app160-260 hEUR 5,500 - EUR 14,500280-450 hEUR 9,750 - EUR 24,750480-720 hEUR 16,750 - EUR 39,750800-1200 hEUR 28,000 - EUR 66,000
E-commerce100-180 hEUR 3,500 - EUR 10,000200-300 hEUR 7,000 - EUR 16,500350-550 hEUR 12,250 - EUR 30,250600-900 hEUR 21,000 - EUR 49,500
SaaS platform250-400 hEUR 8,750 - EUR 22,000420-650 hEUR 14,500 - EUR 35,750700-1050 hEUR 24,500 - EUR 57,7501100-1600 hEUR 38,500 - EUR 88,000
AI / ML150-260 hEUR 5,250 - EUR 14,500300-500 hEUR 10,500 - EUR 27,500550-850 hEUR 19,250 - EUR 46,750900-1400 hEUR 31,500 - EUR 77,000
Custom / other80-150 hEUR 2,750 - EUR 8,250180-300 hEUR 6,250 - EUR 16,500320-520 hEUR 11,000 - EUR 28,750550-900 hEUR 19,250 - EUR 49,500

What moves the number

Three things account for most of the spread. Complexity is the largest: an enterprise build is several times a simple one in the same category, because of integrations, roles, permissions and edge cases rather than screen count. Platform is next.

Building for web is the baseline. Mobile adds 10% for store review, device fragmentation and release overhead, and doing both adds 35%.

Not included: third-party licences and subscriptions, paid data sources, app store fees, hardware, and ongoing hosting. Design is included at the level a working product needs; a bespoke brand system is scoped separately.

Want the real number?

The calculator sizes a budget. A written estimate scoped to your actual requirements is free, and usually lands within a few days of a first conversation.

Talk to us

Frequently asked questions

  • How much does it cost to build an app?
    It depends on whether it is an MVP or a full production product, the platform, and complexity. A standard-complexity web MVP works out at 150 to 240 hours, which is EUR 5,250 to EUR 13,250 at our EUR 35-55/hour rate. Taken to full production quality the same build is EUR 13,250 to EUR 31,000.
  • What does an hour of development cost?
    Square bills EUR 35-55 per hour depending on seniority and how long the engagement runs. That single band is the only price input in every figure on this page.
  • How long does it take to build an app?
    A minimum viable product typically ships in 8 to 16 weeks; a full production build runs 11 to 25 weeks. Timelines come from effective engineering hours per calendar week, so a bigger scope moves the date rather than the rate.
  • How much does an e-commerce site or a SaaS product cost?
    A working shop with payments and order management is usually 100 to 300 hours. A SaaS platform with multi-tenancy, billing and roles starts higher, from 250 hours. The full table of bands by project type is published above.
  • How accurate is the calculator?
    It is an indicative range, not a quote. It applies our public hourly band to a typical effort range for what you select. Real scope, integrations and design detail move the number, which is why a free written estimate follows.
  • What is not included in the estimate?
    Third-party licences and subscriptions, paid data sources, app store fees, hardware and ongoing hosting sit outside the figure. Design is included at the level a working product needs; a bespoke brand system is scoped separately.
  • Is this a binding quote?
    No. It is a public, instant estimate to help you size a budget. A binding number comes from a written estimate scoped to your actual requirements, which is free.