15 Trusted and Leading iPhone App Development Companies

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With consumers becoming increasingly mobile, companies must have their own fully-functional mobile apps. A mobile app lets you engage customers in new ways, gather valuable customer insights, streamline processes, and increase brand relevance.

But with so many iPhone app development companies to choose from, finding the right one is like looking for a needle in a haystack. We’ve selected 15 of the most trusted iOS development companies today to help you jumpstart your search.

Trusted and Leading iPhone App Development Companies for Your Next Mobile Project:

Top iPhone App Development Companies

iphone app development companies

1. NinjaPromo


Ninja Promo is a digital marketing agency and full-service mobile app development company established in 2017. They have worked with major brands worldwide and offer a wide range of services, including iPhone app development.

They are also an award-winning marketing agency with a team of iOS experts at the ready. Whether you’re a startup looking to increase your digital footprint or an established brand looking for scalability, Ninja Promo will provide end-to-end services from ideation, development, integration, and management of your iPhone app.

Industries they serve include fintech, cryptocurrency, retail, e-Commerce, lifestyle, travel, e-Learning, gaming, entertainment, healthcare, logistics, distribution, social networking, and telecommunications.

ninja_promo (1)


NinjaPromo is a leading digital marketing agency dedicated to elevating your brand through multi-channel marketing solutions, branding and creative design.



London, New York, Dubai, Singapore, Hong Kong, Vilnius

Best for:

Small Business, Midmarket and Enterprise

Minimum Campaign Size: $50.000+
Google Ads
Unity Ads
YouTube Advertising
Social Media
Paid Social
Paid Media
Influencer Marketing
PR & Outreach
Video Production
Video Marketing
Community Management
Website Development
Mobile App Development
Web Design
Mobile App Design
Blockchain Development
Attention to details
Extensive expertise due to a powerful team of specialists
Evaluation of the market situation in order to offer the customer the best end-to-end marketing effectiveness
Minimum Campaign Size: $50.000+
ninja_promo (1)


NinjaPromo is a leading digital marketing agency dedicated to elevating your brand through multi-channel marketing solutions, branding and creative design.

2. Clay


Clay is a UI/UX design and branding agency based in San Francisco. They design and build engaging digital products used by millions. Some of the big brands they’ve worked with are Coca-Cola, Meta, Google, Slack, and MoneyLion.

They provide front-end and back-end development services for iOS and Android mobile apps, websites, B2B or enterprise software, and apps for wearables. They differentiate themselves from other agencies by offering branding, user interface (UI) and user experience (UX) design, and development skills under one roof.

They also conduct extensive research to learn the best way to represent your products to your market and create apps that are easy to use and visually pleasing. Their team of experts can bring designs to life and give you the best value for your investment.


Clay is a UI/UX design and branding agency in San Francisco.

Industry Focus

10 - 50

300 Broadway, San Francisco, CA 94133

Best for:


Minimum Campaign Size: $100.000+
Industry Focus
Financial services
Business services
Web Design
Web development
Digital Strategy
UX/UI Design
Mobile App Development
UX Research
Mobile & Web Development
Motion Design
2D/3D Graphics
Design Systems
Brand Identity
Minimum Campaign Size: $100.000+


Clay is a UI/UX design and branding agency in San Francisco.

3. Nine Hertz

Nine Hertz

Nine Hertz is a mobile app development company that designs high-quality iOS and Android apps. They also create hybrid apps such as react native apps, flutter apps, wearable apps, and cross-platform mobile apps.

They work with brands from various industries like eCommerce, games, education, banking, sports, travel, food and restaurants, healthcare, and transportation. When it comes to iPhone app development, they can create customized mobile solutions from scratch and turn them into highly engaging iOS apps.

Their developers are well-versed in the iOS ecosystem and the latest Apple technologies so that you can get a high-performing iOS app. They can also improve an existing app and adapt it to the latest UI and UX trends. They’ve launched over 1800 projects for more than 450 clients globally across their 14 years of experience.

4. Naked Development

Naked Development

Naked Development is a creative development agency based in California whose primary focus is creating fully functional and beautiful mobile apps. They combine brand strategy with product design UI and UX to develop hyper-focused and targeted apps that bring brands closer to their target market.

They also have multi-code-lingual engineers who can turn ideas into engaging apps. They’ve already launched 327 apps for brands like UPS, Bank of America, Henkel, Quicksilver, and American Red Cross. One of their featured work is a money-saving iPhone app for New World Savings which aimed to help the younger generation get into the habit of saving money.

5. Codup


Codup has over ten years of experience developing high-performing and feature-rich iPhone apps. Clients trust their customer-centric and results-oriented approach, which has earned them multiple awards in the industry.

As a full-service software development company, they also create other solutions such as eCommerce development, API integration, and PHP development, all geared to help clients create a holistic digital strategy. When it comes to iPhone app development, they provide an end-to-end solution that includes UI and UX design, consulting and prototyping, automated quality assurance (QA) and testing, and maintenance and post-warranty support.

Located in the USA and UAE, they serve a global clientele and have worked with clients like Unilever, Dyson, Steelcase, and Stitch Fix.

6. Surf


Surf is a leading iOS application development agency where you can hire highly experienced iOS developers to create your iPhone apps 20% faster than other agencies. Their app developers have cross-industry expertise and are well-versed in various iOS coding languages.

The team has built over 250 apps with an average App Store rating of 4.71. Their services start with a briefing and deep dive into your customers and business needs, after which they proceed to custom iOS application development. They’ll also handle iOS app testing and provide App Store release and support, ensuring you successfully launch and maintain your app.

Clients who worked with them have attested to increased orders, better visibility, and higher revenue within weeks of launching their apps. These brands include Burger King, SBI Bank, KFC, and Mars.

7. Cubix


Experience world-class agile product development through Cubix, a leading app development company with over 12 years of experience in the industry. They’ve launched over 1200 apps across 50 countries, serving industries like healthcare, education, real estate, eCommerce, finance, restaurant, and gaming.

Some of their notable clients include Canon, Sapient, Suzuki, Unilever, and Dreamworks. Their developers are well-versed in Swift, Realm, Coredata, and Objective C—the languages used to create powerful iOS apps.

Aside from iOS development, they can also provide Android app development.

8. Imaginary Cloud

Imaginary Cloud

Imaginary Cloud offers custom mobile development to help companies scale quickly and efficiently. Their process begins with the product ideation step, where they will help you flesh out your ideas into actionable steps. They then use cutting-edge technology to develop your product and enhance your mobile workflows.

Once your app is launched, they continue to improve the product through a series of audits and ongoing support. They’ve delivered over 300 apps across 15 industries since 2010, proving why they’re an award-winning iPhone app development company.

Brands that trust their process include Nokia, Remax, Sage, and ThermoFisher. They also have offices in London, San Francisco, Lisbon, and Coimbra.

Imaginary Cloud

Custom development with fast, reliable & debt-free processes | Helped +300 business leaders scale through Product Ideation, Development & Improvement | Best-in-class Europe-based developers | Delivering world-class software while reducing up to 50% o...



Portugal, United Kingdom, United States

Best for:

Small and Medium Size Businesses

Minimum Campaign Size: $5.000+
React Native
Google Cloud
Scoping sessions
Product Development Process
Artificial Intelligence
UX/UI Design
Code Audit
UX Audit
Web & Mobile development
Minimum Campaign Size: $5.000+

Imaginary Cloud

Custom development with fast, reliable & debt-free processes | Helped +300 business leaders scale through Product Ideation, Development & Improvement | Best-in-class Europe-based developers | Delivering world-class software while reducing up to 50% o...

9. Sidebench


Sidebench is an award-winning UX, mobile, and web app development company based in Los Angeles, California. They offer digital strategy on top of creating innovative digital solutions for various industries like healthcare, consumer brands, and government entities.

Their mission is to transform how humans interact with technology, which is reflected in their thoughtfully designed products. They begin each engagement with a strategy consultation, where they perform competitive analysis and product validation. The team then proceeds to determine the best UX and UI design and the technical architecture required to bring your vision to reality.

Sidebench can complete web development, mobile app development, front-end and back-end development, and systems integration projects. They also provide ongoing QA support. Some of their notable clients include Children’s Hospital in LA, USC, Oakley, NBC Universal, and Sony.

10. Appetiser Apps

Appetiser Apps

Launching an app is more than just finding and working with an app developer. You need a team of strategists, designers, programmers, and marketers who all work together to make your project successful. Appetiser Apps delivers more than just an app—they give their clients a top-performing solution guaranteed to increase revenue and widen brand reach.

The apps they’ve developed have been downloaded over 5 million times, generating over $100 million in revenue. They are highly recommended for their data-driven design that can grab user attention and make your app stand out in an already crowded App Store.

Appetiser also recognizes the urgency of creating and launching an app quickly, so they’ve created a unique “baseplate” framework that cuts the iOS development time by half while keeping the quality consistently high.

They are experts in SWIFT, the native programming language for iPhone and iPad, ensuring you get a secure, fast, and high-quality iOS app. The firm is based in Australia but works with a global clientele. You can visit their website to request a free consultation.

11. Emblem Technologies

Emblem Technologies

Emblem Technologies is a software development firm that harnesses the power of Agile practices to help clients bring their ideas to life. They are committed to creating cutting-edge technology that helps businesses stay ahead of the curve.

With millions of apps in the App Store vying for consumer attention, standing out is challenging. Emblem Technologies recognizes these challenges, and their experienced team knows what it takes to create remarkable iOS apps. They know that time is precious, so their process also ensures that apps are launched in no time.

They also offer technology consulting, artificial intelligence (AI) and machine learning (ML) development, data governance, enterprise resource planning (ERP) solutions, game development, embedded development, and quality assurance. They are present globally with offices in Delaware, Nevada, England, Pakistan, and Singapore.

12. Rising Max

Rising Max

Rising Max is an IT consulting company in New York City that offers various development services across multiple fields of discipline like mobile apps, web, robotic process automation (RPA), enterprise software, AI chatbots, content management systems (CMS), and more. They also offer QA and Testing to ensure products are launched and work up to par.

They’ve served clients in industries like oil and gas, real estate, banking and finance, logistics and transportation, automotive, healthcare, retail, eCommerce, education, and tourism. Some of their notable clients are NBC, Universal, BMW, Deloitte, and Nestle.

Their team can create a wide variety of iOS apps, such as games, business apps, social apps, multimedia applications, web-based applications, and custom iOS apps. The process begins with the planning phase, followed by a design, development, and testing phase. The project concludes with an app launch and a maintenance contract to ensure the app keeps working as intended.

13. Plego


If you’re looking for an experienced and award-winning iPhone app development company, go to Plego. They have over 20 years of experience building web and mobile apps and have launched over 1000+ iOS and Android apps.

They are experts in UI and UX strategy, visual storytelling, customer and full stack development, cross-platform development and integration, native and hybrid mobile apps, and API development and integration. They also provide security and compliance services.

Based in Chicago, their team will build your apps on-demand and connect them with an external database to complete the mobile integration. This will help you achieve a robust and comprehensive app that can work for both internal and external clients.

You can either engage them on a project basis if you have a particular work requirement or work with a dedicated mobile app development team for larger project scopes. Brands who’ve attested to their top-notch services include Intel, Samsung, Bridgestone, Red Hat, Crate and Barrel, and Comcast.

14. Differenz System

Differenz System

Differenz System has built more than 275 mobile apps for over 139 happy clients. They are a fast-rising software development company committed to providing clients with innovative, creative, and user-friendly products.

They work with clients from concept to deployment to finalization, ensuring you can build your desired app quickly and efficiently. Aside from their knowledge of native applications, they also specialize in cross-platform mobile applications so your app doesn’t have to stay in the iOS App Store. It can also migrate to the Android Play Store and other app stores.

15. Glorium Technologies

Glorium Technologies

Glorium Technologies is a multi-awarded software product development company that provides mobile app development services for brands that need to create iOS, Android, and cross-platform applications. Their team can develop feature-rich native apps that are fully-fledged, stable, and scalable.

They work with venture capital or VC-backed startups across multiple industries like healthcare, real estate, and eCommerce. Each mobile app development process begins with a complimentary consultation where they will ask about the vision for the project.

They also provide UI and UX design services, consulting and prototyping, and automated QA services. Reach out to them by visiting their website.

Final Thoughts

The iOS mobile app development companies listed here are just the tip of the iceberg. To avoid confusion and make an informed decision, you should establish clear criteria for the type of company you need. Consider a potential company’s years of experience, their portfolio, the industries they’ve served, and customer reviews. The price can be a deciding factor, but costs must be relevant to the service and expertise the firm can provide.

Finally, be sure to compare several proposals before making a final decision. This will ensure you get the best value for your investment and achieve a fully-functional iOS app that will meet your goals.

Frequently Asked Questions

What is the cost of iPhone app development?

iOS development firms price their services differently. Some will charge a per-hour rate that can range from $20 to $40 per hour, or a per-project rate that can start at $40,000 to $60,000 for simple apps. Complex apps can go up to $300,000 per project.

The app’s complexity is the primary deciding factor for the price, which is why most firms will require a project brief or a discovery call before providing a quote estimate. Additionally, the cost can be influenced by factors like the app's platform compatibility, integration with backend systems, and any specialized requirements.

The app development cost often includes the initial development and ongoing maintenance, updates, and potential future enhancements. It's crucial to thoroughly discuss your project requirements with potential development companies to get accurate cost estimates tailored to your specific needs.

What language is used for iPhone app development?

Apple specifically built a programming language called Swift for new iOS app developments. Legacy projects still use the Objective-C language, but most new apps have migrated to the recommended coding language.

Why should I develop apps for iOS?

According to Statista, there are over 1.6 million apps on iOS, making around 21.5 billion USD. This shows that iOS has a broad and engaged user base that can provide higher revenue potential. Building useful iOS apps will not only increase your brand relevance but will also bring in extra revenue.

About the Author
Geri Mileva, an experienced IP network engineer and distinguished writer at Influencer Marketing Hub, specializes in the realms of the Creator Economy, AI, blockchain, and the Metaverse. Her articles, featured in The Huffington Post, Ravishly, and various other respected newspapers and magazines, offer in-depth analysis and insights into these cutting-edge technology domains. Geri's technological background enriches her writing, providing a unique perspective that bridges complex technical concepts with accessible, engaging content for diverse audiences.