English learners often wonder whether to use in development or under development when describing a project, website, product, or new technology. Both expressions are grammatically correct and commonly used to describe something that is being created, planned, or improved. Although they have slightly different nuances in some contexts, their meanings frequently overlap.
The main difference is that in development often describes the stage or status of a project, while under development can emphasize the process of developing something. For example, a company might have a new product in development, while a website might display an “Under Development” notice. However, both expressions can be used in many of the same situations, so this distinction is not a strict grammatical rule.
Understanding in development vs under development helps you choose natural wording in everyday conversations, academic writing, business communication, and technical documents. This guide explains both expressions, compares their meanings, provides practical examples, and explores related phrases such as in progress, under construction, and in the works.
Quick Answer: In Development vs Under Development
In development and under development both mean that something is being created, planned, or improved. The first often emphasizes a project’s current stage, while the second can emphasize the ongoing development process. Both are correct English expressions, and either may be appropriate depending on the context. Neither phrase is universally better than the other.
Why Do People Confuse In Development and Under Development?
People confuse these expressions because both communicate a similar idea: something is not yet complete and is undergoing development.
The confusion mainly comes from the prepositions in and under. Although these words have different meanings in other contexts, they can introduce phrases with similar meanings when combined with development.
Consider these examples:
- The new mobile application is in development.
- The new mobile application is under development.
Both sentences are grammatically correct. They tell readers that the application is still being created or improved.
The first sentence may present development as a stage in the application’s life cycle. The second may place more emphasis on the ongoing process. In ordinary communication, however, the difference is often minimal.
Some explanations suggest that in development refers to informal work, whereas under development requires a structured plan or official supervision. This is not a reliable grammatical distinction. Either phrase can describe a formal business project, a creative idea, or a technical product.
The best choice depends on the context, established usage, and the meaning you want to emphasize.
1. What Does In Development Mean?
In development means that something is being planned, created, designed, tested, or improved and has not yet reached its intended final state.
The expression is widely useful in business, technology, entertainment, education, and research. It can describe a new product, a mobile application, a film, a training program, or an idea that is being developed.
Examples of In Development
- The company has three new products in development.
- A new educational program is in development.
- The film is still in development.
- Our team has several software features in development.
- A new treatment is in development.
- The organization has a new business strategy in development.
In each example, the phrase describes the status of something that is not yet complete.
When Should You Use In Development?
Use in development when you want to describe a project’s current stage or indicate that a product, idea, or creative work is being developed.
This expression is particularly common in the following contexts:
- Software development: A new application is in development.
- Product development: The company has two new products in development.
- Film development: A new movie is in development.
- Business planning: A new marketing strategy is in development.
- Research and innovation: Several new technologies are in development.
For example:
“The company has a new mobile application in development.”
This sentence communicates that the application is being created but does not specify exactly how much work has been completed or when it will be released.
Is In Development Formal or Informal?
In development is suitable for both formal and informal communication.
You can use it in business reports, product announcements, academic writing, technical discussions, and everyday conversations.
For example:
“Our team is working on several features that are currently in development.”
This sentence sounds natural in a professional software update.
2. What Does Under Development Mean?
Under development means that something is undergoing a process of development, creation, construction, or improvement.
The phrase can describe physical projects, such as buildings and residential areas, as well as nonphysical projects, such as websites, software, business plans, and educational programs.
Examples of Under Development
- The new highway is under development.
- This website is currently under development.
- Several residential buildings are under development.
- The software is still under development.
- The proposed housing project remains under development.
- A new training program is under development.
These examples show that the expression is not limited to construction. It can refer to a wide range of development activities.
When Should You Use Under Development?
Use under development when you want to describe something that is undergoing development or transformation.
It is especially useful in contexts involving:
- Websites: Our website is under development.
- Infrastructure: The highway project is under development.
- Real estate: The residential area is under development.
- Technology: The new software is under development.
- Business projects: The company’s expansion plan is under development.
For example:
“The land is under development for a new shopping center.”
This sentence describes land that is being prepared or transformed as part of a development project.
Remember that under development does not necessarily mean physical construction is taking place. A project may still be undergoing planning, design, testing, or other preparatory work.
Is Under Development Grammatically Correct?
Yes. Under development is a correct and established English expression.
For example:
“The new platform is under development, and additional features will be introduced later.”
The sentence clearly communicates that the platform is still being developed.
The phrase is also common in short notices, including “Website Under Development,” when a website is not yet ready for visitors.
In Development vs Under Development: Comparison Table
The following table summarizes the meanings, similarities, and typical uses of both expressions.
| Feature | In Development | Under Development |
| Basic meaning | Being created, planned, or improved | Undergoing development or improvement |
| Typical emphasis | Project stage or current status | Ongoing development process |
| Grammatical correctness | Correct | Correct |
| Software and applications | Common | Also common |
| Websites | Correct | Correct |
| Business projects | Common | Common |
| Films and creative projects | Particularly common in industry discussions | Possible, depending on context |
| Construction and real estate | Correct | Common |
| Requires official supervision | No | No |
| Means the project is unfinished | Usually | Usually |
| Can the phrases be interchangeable? | Often | Often |
Important: The distinction between project status and ongoing process is a helpful way to understand the expressions, not a strict rule that determines which phrase must be used.
Both expressions can describe the same project without changing its essential meaning.
When to Use In Development vs Under Development
Choosing between the two expressions becomes easier when you consider the subject and the situation.
Use In Development for Products and Creative Projects
In development is a natural choice when discussing products, films, applications, and other projects that are progressing toward completion.
Examples:
- The company has a new smartphone in development.
- A sequel to the popular film is in development.
- The developers have several new features in development.
- A new educational course is in development.
This wording is particularly useful when reporting a project’s status or describing what an organization is working on.
Use Under Development for Websites and Infrastructure
Under development is a useful choice when describing websites, construction projects, residential areas, and other things undergoing development.
Examples:
- Our website is under development.
- The new highway is under development.
- The residential community is under development.
- A new public transportation project is under development.
These sentences communicate that the relevant project is still being developed.
However, the phrase is not restricted to physical projects. It is equally acceptable to describe software or a business strategy as under development.
Can You Use Both Expressions for Software?
Yes. Both in development and under development are appropriate when discussing software.
For example:
- The new application is in development.
- The new application is under development.
Both sentences indicate that the application is not yet complete.
You can also use either expression in a product announcement:
“Our team is developing a new feature that is currently in development.”
“Our team is developing a new feature that is currently under development.”
The first example is generally more concise because it avoids repeating the same idea through developing and in development. A better version would be:
“Our team has a new feature in development.”
Which Phrase Is Better for a Website Notice?
Both expressions work, but Website Under Development is a natural, concise option for a temporary website notice.
Other possible notices include:
- Website Under Development
- Website in Development
- Coming Soon
- Website Under Construction
These notices are not completely interchangeable.
Website Under Development suggests that the website is still being created or improved. Coming Soon emphasizes that the website or service is expected to become available in the future. Website Under Construction often suggests that the site is being built or substantially changed.
Choose the notice that accurately describes the website’s current status.
12 Examples of In Development vs Under Development
These practical examples demonstrate how both expressions work in different situations.
1. Software Development
- The new software is in development.
- The new software is under development.
Both sentences are correct and indicate that the software is still being developed.
2. Website Development
- Our online store is in development.
- Our online store is under development.
Both phrases work when describing an online store that is not yet complete.
3. Construction Projects
- The residential project is in development.
- The residential project is under development.
Both are possible. If the focus is specifically on physical building work, under construction may be more precise.
4. Mobile Applications
- A new mobile application is in development.
- A new mobile application is under development.
Both sentences communicate that the application is being created.
5. Film and Entertainment
- The new film is in development.
- The new film is under development.
Both are understandable, but in development is particularly established in film-industry discussions about projects being planned or prepared before production.
6. Road Projects
- The highway project is in development.
- The highway project is under development.
Both expressions can describe the project’s status. If workers are actively building the road, under construction may be more specific.
7. Business Strategies
- A new business strategy is in development.
- A new business strategy is under development.
Both sentences indicate that the strategy is still being prepared or refined.
8. Educational Programs
- A new learning program is in development.
- A new learning program is under development.
Both expressions are suitable for an educational initiative that is still being created.
9. New Products
- The company has a new product in development.
- The new product is under development.
Both are correct. The first is especially natural when discussing a company’s upcoming products.
10. Scientific Research
- The new technology is in development.
- The new technology is under development.
Both expressions can describe technology that researchers or engineers are developing.
11. Residential Areas
- The new neighborhood is in development.
- The new neighborhood is under development.
Both are acceptable. The second may be particularly natural when emphasizing a property’s ongoing transformation into a residential area.
12. New Features
- A new feature is in development.
- A new feature is under development.
Both expressions work in software updates and product announcements. The choice depends on the writer’s preferred wording and context.
Common Mistakes to Avoid
Although both expressions are correct, English learners sometimes misunderstand their meanings or use them when a more precise phrase would be better.
Mistake 1: Thinking Only One Phrase Is Correct
Incorrect assumption: “In development” is correct, but “under development” is grammatically wrong.
Correct explanation: Both expressions are correct English. They have overlapping meanings and can often be used interchangeably.
Mistake 2: Assuming Under Development Always Means Construction
Under development is not limited to roads, buildings, or land.
For example:
- The website is under development.
- The software is under development.
- The training program is under development.
All three sentences are correct.
Mistake 3: Confusing Under Development With Under Construction
These expressions are related, but they are not identical.
Under development can describe planning, creation, improvement, and construction.
Under construction specifically emphasizes the process of building something, especially a physical structure.
For example:
“The new bridge is under construction.”
This is more precise than “The new bridge is under development” if physical building work is taking place.
Mistake 4: Assuming Development Means Almost Finished
Neither expression tells you how close a project is to completion.
For example:
“The new application is in development.”
This sentence does not indicate whether the application is 10% complete or 90% complete. It only communicates that development is still underway.
Mistake 5: Using Unnecessarily Complicated Sentences
Avoid wordy expressions such as:
- The project is in the process of being in development.
- The website is under the development process of being developed.
Use simple, natural alternatives:
- The project is in development.
- The website is under development.
Clear sentences make your meaning easier to understand.
Mistake 6: Assuming Under Development Requires Official Supervision
Some writers believe that under development can only describe projects managed by an official organization or a formal team.
This is not a grammatical rule.
For example, an individual can develop a personal website, and it can still be described as under development.
Likewise, a major government project can be described as in development.
Memory Trick: How to Remember the Difference
A simple memory trick can help you understand in development vs under development.
In development = Think about a project’s stage.
Imagine a new application moving through planning, development, testing, and release. Saying that it is in development identifies its current stage.
Example: “The new video game is in development.”
Under development = Think about the process.
Imagine a website being created or a residential area being developed. Saying that it is under development emphasizes the process taking place.
Example: “The new residential complex is under development.”
Remember that these are useful associations, not strict rules. You can also say that a residential complex is in development or that a video game is under development.
Easy reminder: Both phrases describe something being developed. Choose the wording that sounds most natural in your particular context.
In Development vs Under Development in American and British English
Both in development and under development are used in American and British English.
There is no general rule that makes in development exclusively American or under development exclusively British. Both expressions are acceptable in standard English, and the choice depends mainly on context and writing style.
For example, writers in either variety can say:
- The software is in development.
- The website is under development.
- The company has a new product in development.
- The housing project is under development.
Other expressions may be more appropriate depending on the situation.
For example, under construction is a familiar expression for a building or road that is being physically built. In the works is an informal alternative for a planned or upcoming project.
If you are writing for an international audience, either in development or under development is generally understandable.
Similar Words and Expressions
Understanding related expressions will help you describe projects and activities more accurately.
1. In Progress
In progress means that something has started but has not yet finished.
Example: “The project is in progress.”
Unlike in development, this expression does not necessarily suggest that something is being created or improved. It can describe almost any ongoing activity.
2. Under Construction
Under construction means that something is currently being built or physically constructed.
Example: “The new office building is under construction.”
This is often the most precise expression when discussing physical construction work.
3. In the Works
In the works is an informal expression meaning that something is being planned, prepared, or developed.
Example: “A new product is in the works.”
It is common in everyday conversation and business communication.
4. In Production
In production generally means that something is being produced or manufactured. film and television, it can refer to the stage when filming or production is underway.
Example: “The new product is in production.”
This can describe a later stage than in development, depending on the industry.
5. Under Review
Under review means that something is being examined or evaluated.
Example: “The proposal is under review.”
A proposal under review is being assessed; it is not necessarily being developed.
6. In the Planning Stage
In the planning stage means that a project is being planned and may not have reached active development.
Example: “The new school is in the planning stage.”
This expression is useful when decisions, preparation, and organization are still the main activities.
7. In Beta Testing
In beta testing means that a product, particularly software, is being tested before a wider release.
Example: “The application is in beta testing.”
This is more specific than in development because it identifies a particular stage of product testing.
8. In Research and Development
Research and development, often abbreviated as R&D, refers to activities involved in researching, designing, testing, and creating new products, technologies, or processes.
Example: “The company invests heavily in research and development.”
Unlike in development, which describes the status of a particular project, research and development often refers to a broader business or scientific activity.
Final Verdict: In Development or Under Development?
Both in development and under development are correct expressions that describe something being created, planned, or improved.
Use in development when you want to describe a project’s stage or status. It is particularly common in discussions about software, films, new products, research, and business initiatives.
Use under development when you want to emphasize an ongoing process of development or improvement. It is also common when describing websites, infrastructure, buildings, and residential areas.
However, the difference is not absolute. Both expressions can be used in many of the same contexts without changing the essential meaning. If you are describing physical building work, under construction may be more precise.
Ultimately, the best expression is the one that communicates your meaning clearly and naturally.
Frequently Asked Questions
1. Is It In Development or Under Development?
Both expressions are correct. In development often emphasizes a project’s stage or status, while under development can emphasize the ongoing process. The right choice depends on the context.
2. What Is the Difference Between In Development and Under Development?
Both phrases describe something that is being created, planned, or improved. In development often highlights a project’s current stage, while under development may emphasize the process. Their meanings frequently overlap.
3. Is Under Development Grammatically Correct?
Yes, under development is grammatically correct. For example, “The new website is under development” means that the website is still being created or improved.
4. Is In Development Grammatically Correct?
Yes, in development is grammatically correct. For example, “The company has a new product in development” means that the company is working on creating the product.
5. Can I Use In Development for a Website?
Yes. You can write, “Our website is in development” or “Our website is under development.” Both expressions indicate that the website is still being created or improved.
6. Which Is Better for a Website Notice: In Development or Under Development?
Website Under Development is a natural, concise notice for a website that is still being built or improved. Website in Development is also understandable, although the first is a familiar choice for a temporary status notice.
7. Does Under Development Mean Under Construction?
Not exactly. Under development can describe planning, creation, improvement, or construction. Under construction specifically emphasizes the process of physically building something.
8. Can In Development and Under Development Be Used Interchangeably?
Yes, the expressions can often be used interchangeably when describing unfinished projects, software, websites, or products. However, the emphasis may differ slightly, and another expression may be more precise in certain situations.
Remember This
- In development: Often emphasizes a project’s stage or status.
- Under development: Can emphasize the ongoing development process.
- Both expressions: Are grammatically correct and frequently interchangeable.
- Under construction: Specifically emphasizes physical building work.
- In progress: Describes an activity that has started but is not finished.
- Best choice: Depends on the subject, context, and intended meaning.
Conclusion
The difference between in development vs under development is subtle because both expressions describe something that is being created, planned, or improved. In development often highlights the stage of a project, while under development can emphasize the process taking place. However, these are general tendencies rather than strict grammatical rules, and both phrases are accepted in standard English.
For English learners, the easiest way to remember the distinction is to focus on context instead of memorizing an absolute rule. Use in development naturally when discussing the status of products, software, films, and business projects. Use under development when describing an ongoing development process, including websites, infrastructure, and property. When either phrase fits the situation, both can communicate the same essential meaning.
I am Samantha Rose, a passionate slogan writer who loves creating catchy, meaningful, and memorable slogans that help brands communicate their ideas clearly and creatively.
