When One App Copies Another: Feature Copying, IP Risks and Contracts for UK Businesses

You spot a rival app using a flow that looks very familiar. Or your product team wants to build a feature that already exists in a competitor’s platform. The immediate instinct is often wrong in both directions. Some founders assume that if a feature is visible in the market, it is free to copy. Others assume any lookalike app feature must be illegal. A third common mistake is signing a developer, agency or white label contract without being clear on who owns the code, designs and data.

In the UK, the legal answer is usually more specific than “copying is allowed” or “copying is banned”. Different parts of an app can be protected in different ways, and some elements are not protected at all. Copyright, trade marks, passing off, confidential information, database rights, patents in limited cases, and your contracts can all matter.

This guide explains what “when one app copies another” really means for UK businesses, what legal issues to check before you sign, where founders commonly get caught, and how to reduce risk whether you are building, buying, licensing or challenging a copied feature.

Overview

Feature copying is not automatically unlawful in the UK, but copying specific protected expression, misusing confidential information, or creating misleading market confusion can trigger real legal risk. The safest approach is to separate the idea from the protected implementation, then make sure your contracts match what your business actually needs.

• Whether you are copying an idea, a workflow, code, screen designs, branding, content, or data structure
• Who owns the IP in your app, including work created by developers, agencies and contractors
• Whether any confidential information was used to build the feature
• Whether branding, names or interface choices could confuse customers
• What your development, licence, white label and supplier contracts say about ownership, reuse and restrictions
• How to document independent creation before you sign a contract or release an update
• What to do if you think another app has copied your product too closely

What When One App Copies Another Means For UK Businesses

“When one app copies another” usually means a business is worried about one of two things: either you want to build a similar feature without infringing rights, or you think a competitor has taken too much from your app. The answer depends on what has actually been copied.

Ideas are treated differently from expression

UK law does not usually give businesses a monopoly over a general idea, concept or function. A booking app, marketplace flow, chat tool, dashboard layout logic or subscription model may be commercially distinctive, but that does not mean the idea itself is protected.

The legal risk rises when the copying moves from the idea into the specific expression of that idea. That can include:

• source code or code structure
• screen text, help content or onboarding copy
• graphics, icons, illustrations or animations
• very specific screen layouts or visual design choices
• brand names, logos, slogans or app store presentation
• customer lists, pricing models or data compiled in a protected way

This is where founders often get caught. A team may say, “We are only copying the feature”, when in practice they are also reusing wording, design assets, developer output or internal know-how that belongs to someone else.

Copyright may protect code, artwork and content

Copyright can protect original code, graphics, written content and other creative elements in an app. It does not usually protect a broad idea like “users can swipe to save”, but it may protect the actual code, images and text used to implement that feature.

If your business hires freelancers or an overseas development team, copyright ownership is a practical issue, not just a legal theory. Without a clear written assignment or suitable contract terms, the business paying for the work may not automatically own all of it. Before you spend money on setup or a redesign, check who actually owns:

• the app codebase
• UI and UX designs
• wireframes and prototypes
• marketing copy and app store materials
• documentation and technical specifications

Trade marks and passing off deal with confusion

If another app uses a name, logo, colour combination or branding style that makes customers think the apps are connected, trade mark issues may arise. Passing off can also matter where a business has built up goodwill and a rival misrepresents a connection.

This often matters more than founders expect. Two apps can have similar functions without a problem, but a copied app icon, near-identical name or lookalike landing page can create a stronger claim than the feature overlap itself.

Confidential information can be the real problem

A copied feature dispute is not always about public-facing design. Sometimes the issue is that a founder, employee, consultant or agency used confidential information obtained during a pitch, trial, pilot project or acquisition discussion.

If a feature was built using non-public material, the question becomes whether the information was confidential, whether it was shared under restrictions, and whether those restrictions were broken. That is why NDAs, pilot agreements and contractor terms still matter, even where formal IP rights are unclear.

Database rights and patents can arise, but less often

Some app businesses assume they can patent any digital feature. In reality, software patentability in the UK is limited and very fact-specific. Database rights can also matter where a business has invested substantially in obtaining, verifying or presenting database contents.

These rights are less common in day-to-day SME disputes than copyright, branding, confidentiality and contracts, but they should not be ignored if your product relies heavily on proprietary datasets, technical methods or specialised backend architecture.

Independent creation matters

If your team created a similar feature independently, that may be important evidence. Similarity alone does not always prove unlawful copying. Competitors in the same market often solve the same user problem in similar ways.

Before you sign a contract with a developer or approve a product brief, keep records that show your process, such as:

• dated product specs and design drafts
• meeting notes and internal decision logs
• instructions given to agencies and contractors
• evidence that no competitor code or assets were reused
• version history showing your feature development over time

Legal Issues To Check Before You Sign

Before you sign a contract connected to app development, licensing, outsourcing or white labelling, make sure the document deals clearly with ownership, permitted reuse, confidentiality and liability. Many disputes about copied features are really contract disputes in disguise.

Development contracts

If an external developer or agency is building your app or a new feature, your contract should say who owns the deliverables and when ownership transfers. Do not assume payment alone gives you full rights.

The contract should clearly address:

• ownership of custom code and design work
• whether pre-existing tools, libraries or frameworks are excluded
• whether the developer can reuse elements for other clients
• open source software use and licence compliance
• warranties that the work does not knowingly infringe third party rights
• an obligation to help if an IP complaint arises

Open source is especially worth checking. A developer may use third party components lawfully, but the licence terms can still affect how you can distribute or commercialise the product.

White label and SaaS supply agreements

If you are buying or reselling technology rather than building from scratch, your rights may be narrower than you think. A white label arrangement can allow you to brand a platform without giving you ownership of the underlying product.

Before you accept the provider’s standard terms, check:

• whether you are getting a licence or ownership
• what customisations you can make
• whether you can take your customer data if the contract ends
• whether the supplier can reuse your feedback or feature requests
• whether there are restrictions on reverse engineering or benchmarking
• what happens if a third party claims the software infringes their rights

Founders often invest in branding, sales and onboarding around a licensed app, then discover later that they cannot keep the custom features or migrate easily.

Employee and contractor IP terms

If the copied feature issue involves your own team, your internal contracts matter. Employees and contractors should have clear confidentiality and IP clauses that fit their role.

Employees and contractors are treated differently in law, so use the right documents. Before you rely on a verbal promise from a developer, designer or product adviser, make sure your paperwork covers:

• ownership of work product
• confidentiality during and after the engagement
• return or deletion of materials on exit
• restrictions on using your internal materials elsewhere, where legally appropriate
• moral rights waivers where relevant for creative work

Confidentiality agreements and pilots

If you are showing a new app feature to a potential partner, investor, reseller or enterprise client, the main risk may be idea leakage combined with practical implementation detail. An NDA will not stop all competition, but it can help define what information is confidential and what use is prohibited.

For pilot projects and demos, it is sensible to document:

• what material is confidential
• who can access it
• whether testing feedback can be reused
• whether screenshots, recordings or technical documentation can be retained
• what happens to data and materials after the pilot ends

Brand protection and naming clauses

If your concern is app cloning with lookalike branding, trade mark checks matter before you sign brand, design or marketing agreements. If you have not cleared or protected the name, your position may be weaker than expected.

Before you invest in branding, check whether:

• your app name is available for use in the UK
• you should apply for a trade mark
• your designers are creating original brand assets
• your agency contract transfers ownership of logos and visual identity work

Privacy and data use terms

Some app copying disputes involve data as much as design. If a supplier, developer or reseller has access to user data, analytics or behavioural information, your contracts should define who can use that data and for what purpose.

In the UK, privacy compliance can sit alongside IP concerns. If a provider uses customer data from one client environment to improve another product, the issue may involve confidentiality, contract limits and UK GDPR-style transparency obligations as well.

Common Mistakes With When One App Copies Another

The biggest mistake is treating app copying as a single legal issue. In practice, founders often miss the real pressure point, which is usually ownership, confidentiality, branding confusion or weak contracts.

Assuming features themselves are automatically protected

A feature can be commercially valuable without being legally exclusive. If your business relies on a product advantage, legal protection often needs to be layered. That may include trade marks, confidential development processes, carefully controlled access, and clear contractual ownership of code and designs.

If you assume the feature itself is enough, you may underinvest in the supporting protections that actually help when a competitor catches up.

Using a competitor as the design spec

Teams often tell an agency to “make it like this app but cleaner” or “copy this journey with a few changes”. That instruction creates obvious evidential risk if a dispute arises later.

A safer product process is to define the user problem and desired outcome, then produce your own materials from scratch. Keep your internal brief focused on function, not replication.

Paying for development without securing ownership

Founders regularly spend serious money on app development and still do not own what they paid for. This happens with freelancers, offshore teams and rapid agency builds.

If the contract is silent or unclear, ownership may stay with the creator or be split in awkward ways. That makes it harder to challenge copiers, sell the business, raise investment or switch suppliers.

Ignoring confidential information risks during talks

Early-stage businesses often share product mock-ups, roadmaps and technical logic in partnership meetings without written terms. If the other side later launches a similar feature, proving misuse becomes harder.

An NDA is not a magic fix, but no paperwork is usually worse. Before you sign heads of terms, start a pilot or send full product documentation, decide what can safely be shared and on what terms.

Focusing on code and forgetting branding

Sometimes the strongest complaint is not that a feature was copied, but that the rival product looks and sounds close enough to confuse users. Founders can miss this because they focus on backend originality while the customer sees the icon, name and interface first.

If customers might think the apps are linked, your trade mark and passing off position may be worth assessing alongside any copyright concerns.

Accepting supplier terms that limit your options

Many SaaS and platform agreements let the supplier reuse aggregated learnings, product suggestions or generic improvements. That may be commercially acceptable, or it may undermine the very edge you are trying to build.

Before you sign, read the clauses on feedback, derivative works, usage data, restrictions on reverse engineering, termination rights and exit rights. This is where businesses often give away leverage without noticing.

Threatening legal action too early

Not every similar feature justifies a formal complaint. If your rights are weak or your own paperwork is missing, an aggressive letter can escalate matters without improving your position.

A better first step is often internal evidence gathering. Work out exactly what was copied, what rights may apply, who owns those rights, and what your contracts say. A measured response usually puts you in a stronger position.

FAQs

Is it illegal to copy an app feature in the UK?

Not necessarily. A general feature or idea is not usually protected on its own, but copying code, graphics, content, confidential information or branding can create legal risk.

Can I build a similar app if a competitor already has it?

Usually yes, if you create your own implementation and avoid infringing protected material or causing confusion in the market. The detail of how your team builds it matters.

Do I own app code if I paid a freelancer to create it?

Not automatically. You should have a clear written contract that assigns ownership or gives your business the rights it needs.

What if another business copied my app design?

Start by identifying exactly what was copied, such as branding, artwork, screen text, layouts or code. Then review ownership, evidence of creation, any confidentiality obligations and whether customer confusion is likely.

Can an NDA stop someone from copying my app idea?

An NDA can help protect confidential information, but it will not usually stop someone independently creating a similar public-facing concept. It works best where you are sharing non-public detail under clear restrictions.

Key Takeaways

• When one app copies another, the legal issue is rarely the idea alone. The real question is what specific material, branding, data or confidential information was taken.
• Copyright may protect code, graphics and written content, while trade marks and passing off may help where customers could be confused.
• Confidentiality can be central if a feature was developed using information shared during pitches, pilots, supplier talks or internal team access.
• Before you sign a development, SaaS, white label or contractor agreement, check IP ownership, reuse rights, warranties, indemnities, open source use, confidentiality and exit terms.
• Independent creation records can make a real difference. Keep product specs, version history and clear internal briefs showing how the feature was developed.
• Many disputes that look like IP disputes are actually caused or worsened by weak contracts and unclear ownership.
• If you are reviewing or negotiating when one app copies another and want help with IP ownership, developer contracts, confidentiality terms, trade mark risk, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.