How to Protect Your App’s Source Code and Interface?

For any tech startup, intellectual property (IP) is not just a legal formality, but a key asset that directly impacts company valuation and investor appeal. But what exactly constitutes your product’s IP? It is not just the business idea, but concrete objects: source code, unique UI/UX design, and, of course, the brand name.

Each of these elements requires its own specific protection mechanism. Misunderstanding the difference between copyright, patents<span style="font-weight: 400;", and trademarks can leave your most valuable assets unprotected. This guide is designed to give IT project founders a clear understanding of how to build a comprehensive and reliable IP protection system.

Section 1: Protecting Source Code: Your Primary Asset

For any IT company or startup, source code is the core of the business. It is not just a set of computer instructions, but the result of thousands of hours of intellectual labor, embodying the unique logic, architecture, and functionality of your product. That is why code protection is priority number one. Fortunately, the law provides a powerful and relatively easy-to-use tool for this — copyright.

Subsection 1.1: Code as a Literary Work: The Foundation of Protection

It may seem strange, but from a legal perspective, a computer program (regardless of the programming language) is protected by copyright similarly to a literary work, such as a novel or an article.

• How does it work? Just as a writer uses words to create a unique text, a programmer uses commands, operators, and functions to create a unique text of code. This text is the result of creative labor and possesses its own structure, style, and originality.
• What does this mean for you? It means that protection arises automatically from the moment the code is written and does not require mandatory registration. As soon as you save the code file, you become the copyright holder (or your company, if done within the scope of employment).
• Scope of protection: Protection extends to both source code (human-readable text) and object code (the compiled version executed by the computer).

Subsection 1.2: What exactly does copyright protect?

This is a critical nuance to understand to avoid false expectations. Copyright protects the specific, literal implementation of your idea, but not the idea or principle of operation itself.
What is protected:

• The code text itself: Direct copy-pasting of your code by another developer is a direct infringement.
• Structure and sequence: Protection covers not just the text, but the unique structure of your program, the sequence of commands, and architectural decisions, provided they are original.
• Preparatory materials: Schematics, flowcharts, and technical specifications created during development are also subject to copyright.

What is NOT protected by copyright:

• Algorithms: The general method or sequence of steps to solve a problem. Another programmer can take your algorithm and implement it from scratch by writing their own unique code.
• Functionality: The idea of “creating a food delivery app” or a “filter products by price” function is not protected.
• Programming languages and standard libraries: These are tools, not the result of creative work.

Subsection 1.3: Practical steps to fix authorship of code

Since rights arise automatically, the main task is to be able to prove your authorship and the date of creation in case of a dispute. Here are some practical steps every developer and startup should take:

1. Using version control systems: Private repositories on GitHub, GitLab, or Bitbucket are excellent evidence. Each commit records the author, exact date, and time of changes, creating an undeniable digital footprint of the development process.
2. Internal documentation: Always include comments in the source code with information about the author (or the rights-holding company), the date of creation, and license terms (e.g., © 2025 BrandR. All rights reserved.).
3. State copyright registration: This is the most reliable way to obtain “ironclad” proof. You submit an application to the IP office along with a printout of part of your code (depositing it). In return, you receive an official certificate, which serves as irrefutable proof of your authorship on a specific date in any court. This is especially important before raising investment or closing major deals.

For more details on the basics of this tool, which is universal for all creators, we wrote in the article: «Copyright in Ukraine 2025: Everything you need to know from inception to registration».

Thus, your source code is automatically protected by copyright from the moment it is written, prohibiting direct copying. However, to reliably prove your rights in the event of a dispute, you must use fixation tools—from maintaining a repository to state registration, which is the most reliable way to confirm your intellectual property.

Section 2: Protecting the Interface (UI/UX): Two Levels of Protection

If the source code is the “brain” of your app, then the user interface (UI/UX) is its “face” and “body.” It is what the user sees, feels, and interacts with. In the modern world, where the functionality of many products is similar, a unique, intuitive, and aesthetically pleasing interface design becomes a key competitive advantage. Therefore, its protection is no less important than code protection. There are several legal tools for this that work at different levels.

Subsection 2.1: Copyright on design: protecting visual embodiment

Just like code, the graphical user interface (GUI) is the result of creative work and is therefore protected by copyright. The law treats it as a composite work, including many individual objects.
What exactly is protected by copyright in the interface:

• Graphical elements (UI Kit): Uniquely drawn icons, buttons, illustrations, fonts. Each of these elements is an independent work of fine art.
• Composition and layout: The original arrangement of blocks, menus, buttons, and other elements on the screen.
• Audiovisual effects: Unique screen transition animations, button click sounds.
• Text content: Original texts, instructions, and interface tooltips.

In other words, copyright protects your interface from literal copying of its appearance. If a competitor creates an app that looks like an exact copy of yours, it will be a direct infringement of your copyright, even if their code is written from scratch. As with code, the most reliable way to secure your rights to the design is state copyright registration, where you deposit screenshots of your app’s key screens.

Subsection 2.2: Industrial design: when your design is an innovation

Sometimes copyright protection is not enough, especially if your interface is not just pretty, but a truly new and original design solution. In such cases, it is worth considering a more powerful tool—registration of an industrial design.

• What is it? An industrial design protects the external appearance of a product, which in the digital world can be an app icon or a unique interface. The main criteria for registration are novelty (a similar design was not publicly available in the world before the filing date) and individual character (the overall impression it makes on an informed user differs from others).
• What does it provide? An industrial design patent grants you a monopoly right to use this design. Unlike copyright, it protects not only against exact copying but also against the creation of similar designs that create the same overall impression. This is a significantly stronger level of protection.
• When is it appropriate? Registering an industrial design makes sense if your UI/UX is your key innovation and competitive advantage. Classic examples are Apple app icons or the iPhone home screen, which were protected specifically as industrial designs.

Subsection 2.3: UI/UX patterns and ideas: what remains free?

It is important to understand that neither copyright nor industrial design allows you to monopolize generally accepted principles and elements of interface construction. These elements, known as UI/UX patterns, are a kind of “alphabet” for designers and belong to everyone.
What cannot be protected:

• The idea of using an “infinite scroll” news feed.
• The principle of placing a shopping cart in the top right corner of a site.
• Standard elements: the “hamburger” menu icon, the magnifying glass icon for search, standard calendar appearance.
• General interaction logic (UX): for example, a “three-step” registration process.

You can only protect your unique visual implementation of these standard elements, but not the principle of their existence and functioning.

Thus, for complete and reliable protection of your app’s interface, you need to use a two-level approach. Copyright automatically protects it as an original work of art from literal copying. To protect a unique and innovative design from the creation of similar imitations, you should consider registering an industrial design. This creates a multi-layered defense for the “face” of your product.

Section 3: Protecting the Name and Logo: Don’t Forget the Brand

Developers and technical specialists are often so focused on code perfection and interface convenience that they forget about another critical asset—the brand of their product. A unique name and recognizable logo are what users will use to search for, recognize, and recommend your app. However, by relying solely on copyright, you leave your name completely unprotected. For brand protection, there is a separate, indispensable tool—trademark registration.

Subsection 3.1: Why doesn’t copyright protect the app name?

This is one of the most common and dangerous mistakes in the IT environment. Many startups believe that since their code and design are protected by copyright, the product name is automatically protected too. This is not true.

As we have analyzed in detail, copyright does not extend to individual words, short phrases, names, or titles. These objects, in the view of the legislator, do not have a sufficient level of creative character to be monopolized as a work.

• What this means in practice: A competitor can create an app with completely different code and design, but with the same or a very similar name to yours. They will not infringe your copyright, but they will create huge confusion in the market, poaching your users and parasitizing on your reputation.
• Example: You created a successful financial planner “FinGo.” A competitor releases their product “Fin.Go” or “Fingo Finance.” Users searching for you in the App Store might mistakenly download their app.

Subsection 3.2: Trademark — the only reliable tool

The only way to obtain an exclusive, monopoly right to use the name and logo of your IT product is to register them as a trademark.
What this provides for an IT project:

• Protection in the App Store and Google Play: With a TM certificate, you can file official complaints against clone apps that use your name or a similar one. Marketplaces generally take such complaints very seriously and quickly remove violators.
• Domain name protection: TM registration is a basis for resolving domain disputes. If someone registered the domain fingo.ua, you, as the owner of the “FinGo” TM, have a high chance of winning it back.
• Protection against “cybersquatting”: You prevent a situation where someone registers your name for themselves and then demands a ransom.
• Increased trust: For investors, partners, and large corporate clients, having a registered TM is a sign of a serious and stable business.

Subsection 3.3: Key Nice Classification classes for IT: 9 and 42

When filing a TM registration application for a software product, it is necessary to correctly choose the Nice Classification classes. For the IT sector, there are two main, “gentleman’s set” classes that cover most needs.

1. Class 9: This is the class for goods. It protects your software product as such. This includes:
   • Downloadable software.
   • Mobile apps.
   • Computer programs recorded on media.
2. Class 42: This is the class for services. It protects your activities related to the software product. This includes:
   • Software development.
   • Software as a Service (SaaS).
   • Cloud computing.
   • IT consulting and technical support.

Registering a TM in both of these classes simultaneously creates reliable and comprehensive protection for most IT projects.

Thus, the technical uniqueness of your product is worth nothing without a strong and protected name. While your code is protected by copyright, your name remains vulnerable. Trademark registration is not an option, but a mandatory step for any IT project that plans to become a recognizable brand, attract users, and build a long-term reputation in the market.

Section 4: Can an algorithm be patented?

We have figured out how to protect code, interface, and name. But what if the “heart” of your product is not just quality code, but a truly unique and innovative algorithm? Can you protect the logic itself, the way of solving a problem, so that no one can replicate it, even by writing code from scratch? Here we enter the territory of patent law. And we will note immediately: software patenting is possible, but it is an extremely complex process with very high requirements.

Subsection 4.1: Software patenting in Ukraine and the world: a high bar

In most countries of the world, including Ukraine, the EU, and the USA, there is a general rule: computer programs as such are not patentable. Why? Because patent law is intended to protect technical solutions in the material world, and a program is essentially a set of instructions, close to a mathematical method or a game rule, which are not patentable.

However, there is an important exception to this rule. You can obtain a patent for an invention implemented by a computer (computer-implemented invention). This means you are not patenting the program itself, but the method or system where this program is a key element that solves a specific technical problem. This is a very fine line, and it is where most software patent applications “stumble.”

Subsection 4.2: Main criterion: presence of “technical character”

For your algorithm or program to qualify for a patent, they must meet the main criterion—having a “technical character.” This means that the program must not just process information, but produce a further technical effect that goes beyond the ordinary interaction of a program and a computer.

Let’s break it down with examples to understand the difference:

• Does NOT have technical character (and is not patentable):
  • Business method: A new way of conducting an online auction.
  • Game rules: An algorithm for a computer game.
  • Learning method: A program for learning foreign words.
  • Information presentation: A new way of sorting news in a feed.
    These things, although they may be innovative, do not solve a technical problem.
• HAS technical character (and is potentially patentable):
  • Physical process control: A program that controls a robot vacuum cleaner, optimizing its route.
  • Physical data processing: An algorithm that analyzes data from a medical sensor (e.g., ECG) to detect anomalies.
  • Improving computer performance: A new data encryption method that increases security, or a new video compression algorithm that reduces processor load.

As you can see, in all patentable examples, the program is part of a larger process that has a clear technical result in the real or digital world. We wrote in detail about the fundamental difference between these tools and what they protect in the article: «Copyright, Trademark, Patent: What protects your idea?».

Thus, patenting is a tool not for any software, but only for truly breakthrough technological solutions. For the vast majority of IT startups, whose innovations lie in the sphere of business logic, interface convenience, or marketing models, a reliable and sufficient protection will be a combination of copyright on code and design and a trademark on the brand. A patent is a weapon for deep technological innovations.

Conclusion

Thus, protecting your IT product is not some single magic solution, but a complex, multi-layered strategy. There is no single “magic” document that would protect everything at once. Reliable legal protection is built on the correct combination of several tools:

• Copyright — this is your base level of protection. It automatically protects your source code and interface design from literal copying.
• Trademark — this is your protection in the market. It protects your name and logo, making your brand unique and invulnerable to clones.
• Patent — this is a tool for deep innovations. It protects unique technologies and algorithms, but only provided they have a technical character.

Building such a comprehensive protection system at early stages is one of the best investments in the future of your startup.

Your IT product is a valuable asset that requires reliable protection. The BrandR team will help conduct a full audit of your intellectual property and develop a comprehensive strategy for its protection. Contact us for a consultation!