Top 100 iPhone and iOS Mobile App Developers

Atmosphere Apps worked with a digital equipment company to create a mobile app that facilitated communication between two sales teams after the client acquired a company. The project included developing the app to be compatible with iOS, Android, mobile phones, and tablets. The client said that 60% of its intended users downloaded the app a couple weeks after its launch.

"They’re tremendous. I highly recommend Atmosphere Apps. ...The platform is very flexible. We had a list of requirements, and then I gave more detailed specs. What was really important was that they were always flexible." – Senior Product Manager, Digital Equipment Firm

hedgehog lab created a series of successful apps for a large Norwegian energy company. Designed for both iPhone and iPad, the apps were made to inspire creativity and engagement within key audiences. Workmanship aside, the client also recognized their professionalism and proactive approach.

"We really enjoyed working with the hedgehog lab team. Their company is efficient, helpful, friendly, and delivered perfectly on time to a very high standard." – Web Editor, Norwegian Energy Corporation

WillowTree worked with a cinema to maintain an existing mobile app and eventually rebuilt the app, integrated a loyalty program, and made it easy for customers to purchase tickets. The client appreciated WillowTree’s willingness to work with an existing app instead of redeveloping the whole project.

“The biggest success for us was having WillowTree take over the app. After that, they integrated our entire loyalty program into it, which was already the biggest of its kind in the movie industry.” – Vice President of Media, Cinema

Rightpoint provided web development services to create an internet portal. The team used Azure to build the platform, which tracks internal projects and invoices. Their efforts have streamlined efficiency by automating several previously manual processes.

“They took an 85-year old process and improved it efficiently.” — Team Member, Steel Fabricating Company

A California-based content discovery startup hired ArcTouch to design a content discovery platform and iOS app. They provided feedback on the startup's user stories, created wireframes, and developed the platform and app. The project was completed ahead of schedule.

“We’re astonished at the quality of the work. We’re a small company, and we weren’t expecting the same level of service a Fortune 500 company might enjoy. We were amazed by their design and the effort that went into every screen.” – Senior Project Manger, Content Discovery Startup

Dogtown Media created an app prototype for a fashion company. The owner wanted an app that supplemented the company’s presence on social media and enabled customers to make purchases. Dogtown Media went on to develop an iOS app, which has not launched yet.

“[Dogtown Media] really take the time to listen to the details and to make changes. They’re mindful of customer service and satisfaction. They were always flexible and accommodating, and presented a great prototype.” – Owner, Fashion Retailer

Fueled designed a bidding-style app for a company that deals with nightlife reservations. They built the app from scratch, taking into consideration what the company wanted, as well as giving advice. The app had a lot of functions, such as a list of venues, submission options, and tools that allowed notifications to be sent from venues.

“They’re incredibly efficient in the work that they do and know what they're doing in design, coding, and executing their ideas. They have a great understanding of what's current and get things done very quickly compared to others.” – Founder, Mobile App

Charged with creating a mobile app for managing and integrating government databases, Appinventiv provided mostly backend development to build the solution. The client appreciated the depth of their expertise, adaptiveness, and ultimate success.

"AppInventiv does their work flawlessly, and as of right now, I can’t find anything that they need to improve." – Product Head, Political Engagement App

Intellectsoft created an e-commerce app with matching backend infrastructure, then integrated it into the client’s blockchain technology. Transforming the given creative demands into a satisfactory product under a strenuous deadline was deemed impressive, as were their communication skills and determination.

“We've given them a challenge, and they've met it, which is why Intellectsoft has become our leading service provider for technology development.” – Program Manager, Holding Company

Atomic Object created an iPad app for a drug testing administration. The app stored data from athlete drug-testing. They handled development from beginning to end, with constant input from the client.

“Atomic Object exhibited similar traits as our company. They were about the same size and had a wealth of experience based on past projects. We liked their leadership team and loved their presentation. … They took the time to understand who we were.” – CEO, Drug Testing Administrator

Partnering with a major hotel group based in Hong Kong, Hyperlink InfoSystem created a series of web and mobile solutions to increase productivity and efficiency of the hotel staff. With a mastery of frontend to backend development, they presented a cost-effective and successful solution well before the deadline.

“We are fully satisfied with our experience with Hyperlink InfoSystem. ... They were always prompt in their response to our queries and gave us good suggestions and solutions throughout the development phase.” – IT Director, Global Hotel Group

FreshWorks Studio collaborated with in-house developers to build a website that allows for a national system of organ donation registry. They worked on the front- and backend, building an API to connect it to a mobile app. Now, they do maintenance and support demonstrations of the system to project partners.

"They’re responsive and client oriented, making sure project needs are met. They deliver on what they promise and always bring the right people to the table. The entire team is incredibly impressive."

From minimum viable product (MVP) to finished product, STRV developed a smart fragrance app for iOS and Android. The product engaged users and immediately stood out on the market, while the team’s speed, efficiency, and comprehensive expertise impressed the client during the entire cooperation.

“It’s been impressive for us to work with STRV because they’ve been able to problem-solve different aspects that had never been touched or done before in this industry. It’s rewarding to work with an incredible team of smart people who can solve problems that don’t exist yet.” – Co-Founder & CMO, Fragrance App
 

CitrusBits designed a virtual vision board app for a company. The company provided the design elements, and CitrusBits focused on the technical aspect. The client said CitrusBits was extremely proactive. The app has received great reviews and engagement is increasing.

“Citrusbits was the only company that was willing to take on the challenge. Many companies said the subliminal aspect of the app was impossible. CitrusBits said, ‘We can make it happen,’ and they did.” – Owner, App

Netguru developed a native iOS and Android app, from minimum viable product (MVP) to outstanding finished product. Their customer-centric approach and company culture wowed the client, as did their responsive project management and transparency.

“People are really impressed by the system. In terms of ease of use, it’s a dream.” – Co-Founder, Healthcare Tech Firm

Magora developed two apps and provided a range of services to a conference organizer, including web and graphic design, full-stack development, and database maintenance and development. The client appreciated Magora's expertise, timeliness, and overall efficiency in project communications and completion.

“I would say they are the best outsourced firm we’ve ever worked with. Their project management skills are great – very transparent and very responsive to communication about fixes being urgent.” – Founder, IT Conference Organizer

Zco developed an app for both iOS and Android to showcase the products of a large electrical parts manufacturer. Their prompt turnaround and response time, competitive pricing, and immaculate deliverables resulted in an experience that was “overwhelmingly positive.”

"Their technical expertise is spot-on and they're highly responsive, even post-launch." – Senior Product Manager, Manufacturing Company

Apadmi developed an app that enables customers of a large digital retailer to make in-store purchases and manage their accounts. From technical development to ongoing support and expertise, the client enjoyed the company's skill and flexibility and continues to trust in their partnership.

“Our collaboration has led to a number of successes with the mobile app — I wouldn't change a thing.” – Channel Manager, Global Financial Service

Brainvire recoded applications and translated an ERP system for a national retail chain. They used React Native to build the applications and Magento and Odoo for the ERP. The client was satisfied with how their work helped expand its digital footprint. 

"Their expertise helps us define the roadmap in terms of where we’re going and how we can expand our digital footprint." – CTO, National Retail Chain

A retail software company hired TTT Studios to develop iOS and Android applications. They integrated these scalable applications with a POS, e-commerce backend, and multiple APIs. The app helped users manage memberships and loyalty points. The client was pleased with their expert suggestions and flexible approach.

“They were solid, professional, and knowledgeable. Their development approach was creative.” Director of Marketing, Retail Software Company
 

Over a five-year span, SimbirSoft developed numerous web and mobile apps for brands in the client’s portfolio. The end-product enjoyed positive reviews and helped the client meet revenue goals, while the team’s service-oriented attitude and flexibility were also appreciated.

“It is always pleasant to deal with the SimbirSoft team. A devoted manager who is always in touch with us also creates this sense of comfort. Their speed of delivery and the quality of their work is excellent.” – Project Manager, Russian Publishing Company

An electronics manufacturer hired Master of Code Global for help with Android app and backend website development. They also tested the client’s existing products. Master of Code Global’s work allowed the electronics company to sell 6,000 units of product.

“Master of Code Global's work is competitively priced, but they're also experts in their field. They understood our requirements without me having to explain every little process to get to a result.” – CEO, Electronics Manufacturer

Konstant Infosolutions created several mobile CRM and ERP apps to be used across a multi-channel network of 4,700 distributors, partners, and retailers. Their timeliness, planning process, and understanding of the client’s needs resulted in an ongoing partnership to develop a cloud migration and mobile expansion.

“The approach has been fantastic and the deliverables are quite impressive.” – CIO, Construction Corporation

Space-O created a robust healthcare technology app for an emergency medical service (EMS) organization for iOS, Android, and Windows. The company met each milestone with ease, impressing the client with their technological savvy and skills in communication and resource and project management.

“I can't even explain how impressed I am now working with them. ... This service goes above and beyond.” – Chief Information Officer, Healthcare Tech Firm

Y Media Labs developed mobile apps for a financial services firm on both iOS and Android to complement the existing web-based platform. The team’s responsiveness and focused approach gave the client early confidence and ultimately returned a premium finished product.

“Y Media Labs really goes above and beyond to work with the client to ensure that the final user experience is great. To this end, they work with best practices and prior experience to improve our offering.” – Mobile Product Lead, Financial Services Platform

nomtek developed a mobile app to encourage the use of the client’s existing software tool, offering their technical expertise and capabilities in app optimization. They impressed the client with their coding, product development, and “tidy” end-to-end project management.

“There is nothing that I can think to improve. Overall, we were pleased by the collaboration. I would give them high marks for every factor.” – CTO at Educational Organization

Mercury Development built an app that car salespeople can use when talking to car manufacturers. The app shows the ideal combination of materials for a car to ensure the frame is lightweight but still sturdy.

“Whether I was talking to some of the leadership people, or the project managers, everyone was always enthusiastic. I never had a problem getting a hold of someone, and I never had any questions about them being realistic around timelines.” – Senior Manager of Digital Marketing, Chemical and Manufacturing Company

ChopDawg.com designed and developed an app for iOS and Android for a real estate tech company, incorporating custom features that allow users to buy and sell real estate independently.

"ChopDawg's team provides invaluable feedback that's significantly improved the overall design of the app. They contributed greatly to the design and flow of the platform, incorporating features that we never would've thought of." – CEO, Real Estate Tech Company

Droids on Roids originally started working with a personal photo and video company that needed sophisticated software development. They started work on an iOS app and eventually delivered both an iOS and Android app.

“They’re incredibly accommodating, and they want to hear feedback and to improve. If there are areas you aren’t happy with, tell them. You’ll be surprised at how flexible they can be.” – CEO, Personal Photo and Video Company

With 10 developers assigned to the project, Algoworks designed and developed a custom web and mobile solution for rush delivery to the app store. After the app launched successfully with 200,000 downloads, the team’s support continued to impress, much as their flexibility, creativity, and quality had before the deadline.

“Working with Algoworks was a great experience in terms of timeliness and quality.” – President, Consumer Product Startup

Under a tight deadline, Ready4S developed and implemented an app solution to give the client’s employees easier access to customer data. The team earned praise for its cooperative approach, project management skills, and quality results.

“I am pleased with our effective cooperation with Ready4S. … I highly recommend Ready4S as a reliable partner.” – Former Sales Support Director, Global Bank

Five paired with a prominent language app to revamp their mobile user experience, from back to frontend. Thanks to the team’s customer-centric design approach, mobile downloads have more than doubled since the app’s relaunch. Five also delivered their work ahead of schedule and under budget, surpassing all expectations.

"They’re a lot more than a vendor; Five truly is a partner." – Head of Consumer Division, Language App

Shakuro helped create a social networking app for a startup. The agency designed and developed the app, as well as maintained the content management system (CMS) for the platform overall. The company was impressed with the quality of the app and has noticed an increase in engagement.

“I think it’s much better to have more of a dedicated team, and that’s why we’ve stayed with them [Shakuro] throughout this period.” – Co-Founder, App

GBKSOFT helped a career development site attract more clients and improve customer satisfaction by creating a high-quality, functioning web-based app with an Angular.Js frontend that allows users to more effectively build their resumes. 

"GBKSOFT went the extra mile to make me happy and quickly fixed any issues." – Owner, Career Development Site 

DMI developed a mobile app on Windows for a large hotel group, providing extensive user experience research and design input such as wireframes and mood boards. Their work stands out for mobile, branding, and data management.

“They tend to think about the end product as a more marketable product. They don't just look at achieving the KPIs [key performance indicators] of the product owner here internally, but also looking to provide fantastic feedback in terms of how certain features or functions can be marketed.” – User Experience Lead, Large Hotel Group

Despite the project’s complexity, e-Legion excelled at developing, testing, and providing support services for a mobile banking app. The client appreciated the team’s timeliness, cost-effectiveness, and capabilities across a range of mobile services.

"We didn't need to spend extra time or money on testing because e-Legion's work was so good." – Director of Development & Electronic Channels at Russian Bank

Andersen partnered with a health technology company to develop a web app that needed frontend refactoring. They provided PHP Laravel development for the web app and supplied Ionic applications that run using data from the client's database. Andersen's expertise and reliable development work allowed several third-party platforms to have API integrations with the app. 

“The communication has been very good. Having a consistent team and dedicated resources on the project has been an advantage. They are skilled and have a very good work ethic and morale. We get replies even on weekends.” – CEO, Health Technology Company

A crowdfunded IoT and software startup hired AgileEngine to augment its development staff and write back-end code for a device they had built. AgileEngine built the framework for the device and the accompanying application and developed front-end mobile app that connects to the device. The startup credits AgileEngine's development team with their ability to meet internal goals and deliver a product in a timely manner.

"I’ve worked with remote teams in the past. AgileEngine stands out for the quality of their talent. They have a phenomenal process for ensuring they onboard the best of the best, which they succeed in doing." – CEO, IoT and Software Startup

Dom & Tom worked with a digital agency for a website redesign. Dom & Tom designed and tested code for requested features for the site. The agency felt that the Dom & Tom team was responsive and displayed impressive attention to detail. 

“Their staff was incredibly helpful. They follow up and they’re very attentive. They worked relentlessly to help us complete this project on time and within budget, which was phenomenal.” – Project Manager, Digital Agency

Demonstrating fluency in several coding languages, the team developed a highly successful app that earned 10,000 downloads in two months. The client praised the developers’ work ethic and management’s flexibility and communication skills, calling the project an overall positive partnership.

“They have very good experience in product development. Their code is really good quality. The top management is very approachable.” – Founder, Real Estate Visualization Company

The BHW Group was hired by a social network platform to build its website and mobile apps from the ground up. The founder of the company is very pleased with The BHW Group’s ongoing work.

“If I was to start the process over again, I'd use the same team and not waste any time calling other people.” – Founder, Social Media Company

An exciting global travel company needed to improve their mobile app to stay competitive. Miquido helped the travel company develop a mobile app to improve their customers’ experience.

“They are quick to respond to our needs and ideas, being primarily client-oriented and willing to suggest their improvements and ideas” – E-Commerce Coordinator, Travel Company

Halcyon developed an iOS and Android app to ease addiction treatment through community support. The team’s robust code, quality design, and transparent workflow impressed the client, as did the end-product.

“We are very satisfied with their work. We have incredible reviews on the App Store and a rating of 4.6 stars.” – Co-Founder, Addiction Treatment App

Utility developed a live streaming platform for a new network. The project included UX/UI design, live streaming architecture, and search filtering. As a result of Utility’s work, the network received positive reviews and was acquired by a big name company.

“We provided our goals, told them what we needed, and collaborated during the rounds of UX designs, but they took it all from there and steered the strategies around how to implement and execute everything digitally.” – Director, Network

Despite the ambitious timeline and unforeseen technical obstacles, Innofied Solution returned a high-quality app for both iOS and Android that accommodated the client’s existing wearable app. On time and within budget, the team received praise for their front- and back-end interface designs, as well as positive demeanor.

"The Innofied team was professional, competent, responsive, and dedicated." – Director, Global Healthcare Company

A company dedicated to producing games for tailgating and outdoor activities needed an iOS app and hired Hidden Brains. They were so impressed with the work they decided to enlist their help again to build their website.

“The specs were very well documented, and there was never a question as to what I was getting.” – Owner, Game Manufacturer

Techugo created a native mobile app for a large national bank that enabled users to monitor transactions with heightened security features. After a systematic and streamlined project management process, the client was thrilled by the team’s availability and positive demeanor and the app’s ROI.

“Everything went perfectly. … The users are really happy, and the user experience was improved.” – Relationship Officer, National Bank

A filmmaker startup recruited Majestyk to develop a minimum viable project (MVP) for its platform, which allows students and professors in the film industry to connect, communicate, and submit projects. After the startup had a negative experience with another app development company, Majestyk saved the day, developing a web platform from the ground up.

“Majestyk developed our web platform, starting again from scratch. We plan to develop a mobile app in the future. … They’ve all been helpful in terms of communication.” – Co-Founder and CEO, Film Startup

OpenXcell developed a social media app targeted specifically at mothers for a consumer tech startup. They worked with the client, who had an in-house creative team, to implement their designs. They did all the backend development work and created apps for iOS and Android. The app was a success, surpassing the client’s expectations and gaining more than 1000 users within the first week.     

“If you think about the software development life cycle, I think OpenXcell excels in development. I can only speak from a partner’s perspective, but if you’re willing to put in the hard work with them, they will deliver.” – CEO, Consumer Tech Startup

Impekable designed the interface and illustrations for a dating service app. The company was looking for an agency to expand on the features that the popular app already had. Unlike their experience with other vendors, the dating app said Impekable was able to produce the product quickly.

“I'm most impressed by their ability to create high-quality designs at a very fast pace. Their team not only puts a tremendous amount of focus on client projects, but they're also creative, thought leaders when it comes to design concepts.” – Co-Founder, Dating App