In this article · 9 sections
Key takeaways
- App cost is roughly hours of work multiplied by the hourly rate: features, platforms and design set the hours, and who builds it sets the rate.
- Feature scope is the biggest cost driver. Real-time chat, payments between users, marketplaces, offline sync and AI features are the heaviest.
- As a rule of thumb, a simple app takes about 2 to 4 months of a small team, a medium app 4 to 8 months, and a complex platform 8 months or more.
- Budget for costs beyond the build: developer accounts, hosting, third-party services, yearly maintenance, marketing, support and legal.
- Start with an MVP, reuse proven components and ask for an itemised quote that also lists what is excluded.
“How much does it cost to build an app?” is probably the most common question anyone asks before starting a project, and the most frustrating to answer. Honest answers start with “it depends,” which is true but unhelpful. This article explains what it depends on, so you can estimate a realistic budget for your own idea and judge any quote you receive.
We will not pretend there is one price. Costs vary widely between regions, team types and levels of ambition. What we can do is show you how the number is built, so you can see where money goes and where you have control.
The basic formula
Almost every software estimate comes down to the same equation:
Cost ≈ hours of work × hourly rate
Everything else, such as features, platforms and design, affects the number of hours. Who does the work, and where they are based, affects the rate. Understanding each side helps you make smart trade-offs.
What drives the hours
1. Feature scope
This is the biggest factor by far. Each feature adds design, development, testing and fixing time. Some features look small on screen but are heavy underneath:
- Light: static content screens, basic forms, simple settings
- Moderate: user accounts, push notifications, search, in-app purchases, maps
- Heavy: real-time chat or video, payments between users, marketplaces with multiple user roles, complex dashboards, offline sync, AI features, custom 3D or augmented reality
A useful habit is to ask of every feature, “Is this needed to prove the idea?” Our guide to planning an MVP shows how to cut scope without cutting value.
2. Platforms and technology
Building for iOS and Android separately roughly doubles the front-end work. A cross-platform framework can share a large portion of the code, which usually reduces cost, though not always by half. See native vs cross-platform development for how to choose.
If you also need a web app or an admin dashboard for your team, include that in your estimate. It is easy to forget that most apps need a back-office to manage users, content and orders.
3. Design complexity
Design effort ranges from using standard platform components with a light brand layer to a fully custom visual identity with detailed animations. Custom illustration, motion and a complete design system all add time, but they also add polish and consistency. Good UI/UX design often saves money later, because it reduces rework during development.
4. Backend and infrastructure
Most apps need a server side: a database, APIs, authentication, file storage and sometimes background jobs. The more custom logic, integrations and scale you need, the more effort it takes. Managed services can cut build time significantly for early-stage products.
5. Third-party integrations
Payment gateways, maps, analytics, messaging, social login and external APIs all take integration and testing time. Some come with their own usage fees too, which belong in your ongoing costs.
6. Quality, security and compliance
Testing, security reviews, accessibility work and compliance requirements (for example in health, finance or children’s apps) add hours that are well worth spending. Skimping here tends to cost more later in bug fixes, support load and lost trust.
What drives the rate
Hourly or daily rates differ based on who builds the app:
| Option | Typical strengths | Typical trade-offs |
|---|---|---|
| Solo freelancer | Flexible, often lower cost | Limited capacity, single point of failure, usually one skill set |
| Small studio or agency | Complete team (design, dev, QA, project management) | Higher rate than a freelancer, but less coordination work for you |
| Large agency | Scale and process for complex programmes | Highest rates, can feel slower for small projects |
| In-house team | Deep product knowledge and control | Hiring time, salaries and management overhead |
Location also matters. Rates vary a lot between regions, and a lower rate does not automatically mean lower total cost if communication or quality suffers. Ask for relevant examples of past work and talk to a previous client if you can.
Rough effort ranges
The ranges below are rule-of-thumb effort estimates, not prices. Real projects can fall well outside them, but they help you sense the scale.
| App type | Example | Typical effort |
|---|---|---|
| Simple | Single-purpose tool, content app, basic booking | Roughly 2 to 4 months of a small team |
| Medium | Social or community app, marketplace MVP, subscription product | Roughly 4 to 8 months |
| Complex | Real-time platform, multi-sided marketplace, fintech or health app | 8 months or more |
Multiply the team’s monthly cost by the duration to get a ballpark. If you want a quick starting point for your own project, our project estimator gives an indicative range based on the services, scope and pace you choose.
The costs people forget
The build is only part of the picture. Plan for these as well:
- Developer accounts: Apple charges an annual fee for the Apple Developer Program, and Google charges a one-time registration fee for Google Play. Check current amounts when you sign up.
- Hosting and infrastructure: servers, databases, storage and bandwidth. These grow with your user base.
- Third-party services: SMS, email, maps, analytics and payment processing fees.
- Maintenance: operating system updates, bug fixes, security patches and library upgrades. A common planning assumption is to budget a meaningful percentage of the original build cost each year, and the exact figure depends on the app.
- Marketing and user acquisition: an app nobody knows about does not grow. Budget for launch, app store optimisation and ongoing promotion.
- Support: answering users, moderating content and handling refunds.
- Legal: privacy policy, terms of service and any regulatory requirements.
How to get a useful quote
Vague requests produce vague quotes. To get meaningful estimates:
- Write a short brief. Cover the problem, target users, core features and any deadlines.
- Separate must-haves from nice-to-haves. Ask for pricing on the must-haves first.
- Ask for a breakdown. A good quote lists design, development, testing and project management separately.
- Clarify what is excluded. Hosting, third-party fees, post-launch support and store fees are often outside the quote.
- Compare like with like. A lower number may simply cover less.
- Ask about ownership. You should own the source code, designs and accounts.
Ways to reduce cost sensibly
- Start with an MVP and expand based on real usage.
- Reuse proven components for authentication, payments and notifications.
- Use a cross-platform framework when the app does not need heavy native features.
- Invest in design early to avoid expensive rework.
- Phase the roadmap, releasing in stages rather than building everything at once.
- Decide quickly. Delays in feedback and approvals stretch timelines and raise costs.
Be wary of shortcuts that look cheap now but cost later, such as skipping testing, ignoring security or accepting code you do not own.
Fixed price, time-and-materials or retainer?
- Fixed price works when scope is clear and unlikely to change. The risk is that changes become negotiations.
- Time and materials suits evolving products. You pay for actual work, so you need good visibility and priorities.
- Retainer or dedicated team fits ongoing development, with a steady monthly commitment.
Final thoughts
The cost of an app is the result of choices you make: how much to build, on how many platforms, with what level of design and who does the work. Focus on a clear scope, plan for life after launch, and treat any estimate as a conversation, not a verdict.
If you want to talk through your idea and get a realistic view of scope and budget, contact our team. We reply within 24 hours.
Frequently asked questions
How much does it cost to build a mobile app?
It depends on scope, platforms, design and who builds it. A simple app typically needs 2 to 4 months of a small team and a complex platform 8 months or more; multiply the team's monthly cost by the duration for a ballpark.
Is cross-platform development cheaper than native?
Usually. One shared codebase for iOS and Android cuts front-end work, although savings are rarely a full 50 percent and some features still need native code.
What are the hidden costs of an app?
Developer account fees, hosting, third-party services such as SMS, maps and payments, yearly maintenance, marketing and user acquisition, support, and legal documents.
Should I choose a fixed price or time-and-materials contract?
Fixed price suits a clear scope that is unlikely to change. Time-and-materials suits evolving products where you want flexibility and can stay closely involved.