What really drives the cost of a mobile app
Screen count doesn't tell the whole story. Here are the real factors behind a mobile app budget and how to keep it under control from day one.
“How much does an app cost?” is the first question we hear and the hardest to answer in a single sentence. Not because we want to dodge it, but because two apps with the same number of screens can have completely different costs.
Here are the factors that actually matter.
1. Logic, not screens
A login screen looks simple. Behind it there may be Google and Apple sign-in, password recovery, SMS verification and different user roles. Complexity lives in the rules, not the pixels.
When we estimate, we break every feature into business rules: who can do what, what happens when something fails, what data is stored and where.
2. Integrations
Payments, maps, shipping, ERP, CRM, e-invoicing — every integration means documentation to read, edge cases and testing. Integrations with legacy systems or poorly documented APIs are usually the least predictable part of a project.
3. Platforms
iOS, Android, web, admin panel. Cross-platform technologies like React Native or Kotlin Multiplatform cut the effort significantly, but every platform still has its own rules for publishing, notifications and permissions.
4. Design depth
A design built on standard components costs less than an experience with custom motion, illustration and micro-interactions. Both can be the right choice — it depends on what the product needs to say, and to whom.
5. What happens after launch
Apps are never “done forever”. Operating systems update every year, libraries age and users ask for new features. A realistic budget includes maintenance.
How to keep the budget under control
- Start with an MVP. Launch only the features that validate the idea, then invest based on real data.
- Prioritise with your technical team. Sometimes a “small” feature is expensive and a “big” one is cheap.
- Ask for phased estimates. You know exactly what you get at each step and can decide as you go.
- Keep ownership of the code. If you change teams, you don’t start from zero.
In short
The cost of an app is the sum of the decisions you make about it. The clearer those decisions are up front, the more accurate the estimate — and the fewer the surprises.
If you have an idea and want a concrete estimate, get in touch. After a short call we’ll send you a phased proposal.