How Much Does It Cost To Develop A Mobile App In 2026?

Updated: 27th March 2026

How Much Does It Cost To Develop a Mobile App In 2026?

If you are looking into getting a mobile app developed, one of the first questions that comes up is usually cost. How much does it actually cost to make an app in the UK? There is no set figure. The price depends on what the app needs to do, how complex it is, which platforms you target, and who you choose to develop it. A basic calculator app and a shopping app with payments and integrations will sit in very different price brackets.

This article explains the main factors that affect app cost, gives example price ranges, looks at typical timescales, and outlines ways to reduce cost. It also touches on ROI and how to choose the right UK app developer.

How Does Functionality Affect App Cost?

Every extra piece of functionality needs designing, building and testing, so more features generally mean higher cost. Some types of functionality are also more complex to implement than others.

Examples of functionality that can increase cost include:

• Push notifications
• GPS and maps
• Near Field Communication (NFC) for contactless scanning
• In‑app purchases or subscriptions
• Secure login and user accounts
• Integrations with third‑party systems or APIs

Cost is also affected by whether the app runs on its own or needs a server connection.

• A standalone app is self‑contained. All data resides within the app on the device. There is no connection to an external server.
• A connected app talks to a web‑based portal or other systems. For example, it might integrate with an ecommerce platform or a custom admin system.

Connected apps need both the mobile app and some form of backend or web portal. This extra work on the server side increases overall app development cost.

The way users move through the app also has an impact. Some apps may have only a few screens. Others may have many screens and complex user journeys. A higher number of screens usually means more design, more development, and more testing time.

What Else Affects App Development Cost In The UK?

Aside from functionality, there are several other factors that affect app development cost in the UK.

Platforms And Devices

The number of platforms and device types you want to support makes a difference. For example:

• Android
• iOS (iPhone, iPad)
• Tablets
• Smartwatches or other devices

Covering several platforms and device types means more effort in terms of design, coding and testing. By contrast, building for Android alone keeps the scope tighter than building for both Android and iOS.

Design And Branding

Design requirements also affect cost.

Some companies only have a logo. Others have detailed brand guidelines and existing digital designs.

Costs tend to increase when:

• Brand guidelines are limited and a full visual style needs creating
• A very rich, animated or highly customised user interface is required
• There are many stakeholders who need to review and approve designs

If you already have clear brand guidelines and are happy with a clean, straightforward interface, less design work is needed, which helps keep app cost down.

Technology Stack And Cross‑Platform Development

The development approach has a significant impact on app cost.

In broad terms, you can:

• Develop native apps for each platform separately, or
• Use a cross‑platform framework to share most of the code across Android and iOS

We use Microsoft .NET MAUI, a modern cross‑platform framework. It allows us to build apps for Android and iOS from one shared codebase, while still delivering a native‑like experience on each platform.

For many SMEs, this approach is cost‑effective. You avoid paying for two completely separate codebases and reduce long‑term maintenance effort.

If you would like more technical detail, see our article on What .NET MAUI is and why to use it for app development.

Types Of Mobile App Developers and Their Rates

Different types of developers charge different rates. Typical hourly rates are:

• Overseas / offshore – £20 to £35 per hour
• Independent UK‑based freelance app developer – £35 to £70 per hour
• Small UK app development agency – £70 to £90 per hour
• Medium app development agency – £90 to £120 per hour
• Larger app development agency – £120 to £220 per hour

There are pros and cons to each option.

Cheaper options such as offshore teams or freelancers can appear attractive. However, they often carry higher risks around communication, quality control, and long‑term support.

App development agencies usually provide a more structured service. This often includes project management, design, testing and ongoing support. You are paying for that structure, but it tends to reduce project risk.

As agencies grow larger, their overheads increase. This usually results in higher rates. For many SMEs, a smaller specialist UK agency offers a good balance between reliability, expertise, and app cost.

How Much Does It Cost To Develop a Mobile App In 2026?

Assuming you choose a UK app development agency, the cost to design and develop a low to medium complexity mobile app in 2026 will typically be:

• Between £5,500 and £55,000

This is a wide range, but it reflects real projects. A simple calculator app, an ecommerce app, and an internal field‑service app all sit at different points on the scale.

Your app cost will increase if you also need:

• A web‑based portal to manage data or users
• Payment processing
• Secure authentication and role‑based access
• Integrations with other business systems

In many cases, the web‑based portal or admin system is treated as a separate project with its own budget.

If you would like to see how the full process works, our mobile app development guide explains the typical stages from idea to launch.

Example – Standalone Calculator App (Low Complexity)

As a simple example, consider a mobile app which has a few calculators for a specific niche industry. The calculators are free, without any in‑app purchasing. The app is standalone and does not connect to a server.

If an app development agency is used, the number of days required would likely be:

• 12 to 18 days of design and development

Based on common day rates, the cost would range from:

• £6,300 to £30,000

The position in that range depends on the agency rate, the level of polish in the design, and how many rounds of changes are needed.

Example – App Allowing Photographic Prints To Be Purchased (Medium Complexity)

Now take a more complex example.

This app allows users to browse photographic prints, add them to a basket, and purchase them. It uses an API integration with an existing ecommerce platform.

The app needs:

• Product listing and detail screens
• Basket and checkout
• Secure payment
• Integration with your ecommerce platform via an API

If an app development agency is used, the number of days required would likely be:

• 25 to 35 days of design and development

This gives a cost range of:

• £13,125 to £55,500

Again, the range reflects different day rates and scope. Features such as discount codes, order history, or multi‑currency support will affect total app cost.

How Long Does It Take To Develop An App?

Alongside app development cost, timescale is an important factor.

For a simple app, such as a calculator or focused content app:

• Typical timeframe: around 6–8 weeks

This usually includes:

• Clarifying requirements
• Designing key screens
• Development
• Testing on target devices
• Support for App Store and Google Play submission

For a medium complexity app, such as an ecommerce app or an app integrating with existing systems:

• Typical timeframe: around 3–4 months

More complex apps, multiple integrations, or many stakeholders can extend this.

Often, delays come from changing requirements or slow decision‑making, rather than pure development time. A clear brief at the start generally leads to a smoother and quicker project.

How Can You Reduce App Development Costs?

There are several practical ways to keep app development cost in the UK under control.

Start With A Focused Scope

Begin with the smallest set of features that still gives value to your users. This is often called a Minimum Viable Product (MVP).

You can release this first version, learn from real users, and then decide which features to add next. This reduces the risk of paying for features that are rarely used.

Use Cross‑Platform Development

Using a cross‑platform framework such as .NET MAUI allows:

• One shared codebase for Android and iOS
• Less duplicated work
• Easier long‑term maintenance

For many SMEs, this is one of the most effective ways to manage app cost without compromising on quality.

Re‑Use Existing Systems

Where possible, use systems you already have.

For example, if you already use an ecommerce platform, it is usually cheaper to integrate with its API than to recreate the full ordering process inside the app.

The same applies to CRMs and other back‑office systems. Integration normally costs less than rebuilding.

Invest In Planning

A clear brief, agreed user journeys, and early design prototypes make it easier to avoid surprises later.

Changes made at the design stage are relatively cheap. Changes requested when development is nearly complete are more expensive and can affect both app cost and timeline.

Choose The Right Partner

A good app development partner will:

• Help you prioritise features
• Explain the cost impact of decisions
• Suggest simpler or more efficient approaches where possible

This support can save money over the life of the project, even if the hourly rate is higher than some alternatives.

What Is The ROI Of Investing In a Mobile App?

Return on investment (ROI) does not always show up as a simple “extra revenue” number. A mobile app can create value in several ways.

Examples include:

• New sales channels (such as in‑app purchases)
• Better customer experience and loyalty
• Time savings from digitising manual processes
• Improved data about customer behaviour

For some organisations, the app is a direct revenue driver. For others, it mainly improves efficiency or customer satisfaction.

It helps to define your goals early. If you know what “success” looks like, it is easier to decide whether the app development cost is justified.

Apps From F2B Digital

We are relatively small app development agency based in the UK. We use the Microsoft .NET MAUI cross‑platform framework to build mobile apps for Android and iOS in a cost‑effective way.

If you would like to discuss a project or get an idea of app development cost in the UK for your specific requirements, please contact us.