Top 100 App Developers

itCraft provided custom CRM development for a Polish commercial GPS provider. The client was undergoing a period of rapid growth, and needed a dedicated system to keep up with demand. After an audit of the client's business practices and goals, itCraft developed automation solutions for several administrative functions. The client especially appreciated itCraft's communication skills and willingness to listen to suggestions.

"They were very good at communicating. We could tell they have extensive experience in consulting as they listened closely to our needs. " – Co-Owner, GPS Company

A group of university students decided to start a dating app company. When the students contacted Stfalcon, all they had was the concept. Stfalcon worked with the students’ idea and designed and developed apps for both iOS and Android.

“They built us a more advanced product than we sought to do because they were so enthusiastic about our project.” – Co-Founder, Dating App Startup

BiTE Interactive partnered with a technology company to develop the clinical research associate application to streamline costs and reduce overhead to be more efficient throughout the client’s generation process.

“The time and attention they spent to understand our underlying needs were outstanding. It’s easy to get prescriptive and say “based on my experiences…” but they set aside their preconceived notions understood our process through documentation, stakeholder interviews, and collaborative reviews. This due diligence prevented us from jumping to the end results.” – Executive Director, Product Team, Mobile Tech Platform

A Canadian military nonprofit partnered with 247 Labs Inc. to build a job search platform for veterans integrating back into civilian life. 247 Labs Inc. was hired as a subcontractor responsible for delivering backend development with a focus on analytics, as well as longterm maintenance. 247 Labs Inc. used MongoDB and MySQL to develop the backend of the platform, including an automated matching functionality and improved on-site search. Following 247 Labs Inc.'s work, the military nonprofit noticed significant audience growth. 

"Initially, we migrated around 7,000 candidates to the new platform. It reached 10,000 users by February 2018, which was a confirmation of the site’s design and usability. Our employer count also increased, from 300 at the time of migration to 450 by February 2018." - Program Manager, Military Nonprofit

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

Koombea transitioned a home improvement company's e-commerce website to Shopify Plus. Using Ruby on Rails, the team created an intermediate platform to facilitate the migration between Shopify and the client's back office. Since launching the new site, the client's sales have skyrocketed.

"We have the most stable e-commerce platform. We had a huge increase of 700% in sales." — CIO, Home Improvement Company

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
 

Salvaging an already struggling project, Daffodil developed and successfully scaled a number of apps for a food service company. The team’s services were retained after impressing the client with their resourcefulness, efficacy, and customer-centric approach.

“They’ve got the right team to try and build out the solution at a reasonable, affordable rate. They're very focused on delivering quality work.” – CTO, Food Distributor

An internet bookstore wanted to create an online solution for people wanting to read on mobile devices. Better Software Group developed the app from beginning to end, doing wireframing, coding, and programming.

"They are very strong at UX, graphic design, application design, and knowledge of current trends. They have impressive creativity, quick problem solving, and time management. It's good value for the quality of work done." — Director of Development, Internet Bookstore

A beauty salon hired Digiryte for their digital development services. The agency developed a customized software that included automated billing, customer reviews, and more. The software is easy to use and has brought in new customers. 

"I’ve shown my website to a few people, and they’re all impressed. I can use the software with ease, and it captures all the data that I wanted. People come to the salon after seeing the look and feel of the webs."–VP Technology, Beauty Salon

A grocery store wanted to create a mobile customer rewards system, and knew developers, but didn’t know any that excelled in mobile app development. They found Shockoe and were really impressed with them.

“Having the owner and the core team members being in on all the calls and really taking the time to make sure we were taken care of was very impressive.” – IT Manager, Grocery Store Chain

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

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

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

An essential oil company hired Excellent WebWorld to develop mobile apps and a website. The client's platform allows users to collect recipes and manage their inventory of essential oils. They developed iOS and Android apps as well as a website for backend administration. The apps were well received by the client's customers.

"Within six weeks of our launch, we had over 500 users and the feedback was overwhelmingly positive. Many people commented that the user interface was intuitive and pleasant, so their UI designer did a fantastic job. " - CTO, Essential Oil Company

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

An event planning firm needed CodigoDelSur to build them a clean and effective website. The agency helped with a lot of advancements including, design upgrades, and bug fixes. As a result, the website saw an increase in traffic and engagement.

“I’ve had no problems with anything, which is rare. Their [CodigoDelSur’s] Agile project management has been second to none, and the customer service has been fantastic.” – Digital Marketing, Event Planning 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

A tech startup veteran was working on a new fanfare app company and wanted to start with a native mobile app. Impiger Technologies came through to deliver both iOS and Android versions of the app.

“I got into it thinking it was short term but I’m definitely viewing it as a long term partnership. I have developers and project managers that are dedicated to my project.” – Co-Founder, Fanfare App Company

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

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

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

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

A large power equipment manufacturing company hired Quytech to develop an Android mobile app and a web app to help salespeople be more efficient in the field. The app collects data about the salesperson’s presentation and shares it with the home office.

“Quytech delivered what we asked them. The work is good, and we’ve received fewer complaints or requests for changes from the users.” – Engineer, Large Power Equipment Company

Dot Com Infoway was hired by a comprehensive platform for fitness enthusiasts to interact, share knowledge, track personal performance, set fitness goals and stay motivated by sharing workout pictures. Dot Com Infoway marketed and branded all the aspects of the app. Dot Com Infoway was instrumental in taking the app to the masses through an end-to-end marketing campaign that included ASO optimization, keyword analysis, multi-channel strategies, country targeting, A/B testing of creative assets, KPI-based campaigns. As a result, the recorded significant growth and success. 

“Dot Com Infoway has taken the time to understand our requirements and has delivered beyond our expectations.” – Owner, Fitness App Startup

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

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

The founder of a money transfer service had an idea for quick and seamless international money transfers and brought Prismetric on board to build both the iOS and Android apps.

“They are great to work with and always ready to make necessary changes without extra cost. The results were perfect, and I am satisfied with the project.” – Founder, Money Transfer Service

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

3Advance rebuilt a website for a legal nonprofit to update security, improve email capabilities, and streamline UX. The website is a free service for journalists who have First Amendment or Freedom of Information questions.

“Feedback from users has been very positive. It was our first professional site; our old site was very static, and on this one, everything is updated without having to refresh a single URL.” – Legal Defense Director, Advocacy Nonprofit

Postlight created web and mobile applications for a financial news provider. They handled all development, carefully following the client’s guidelines. Feedback for the app has been positive.

“In terms of project management and communication, everything was phenomenal. I couldn’t ask for anything more. They’re incredibly polished and professional.” – Global Head of Digital Innovation, Financial Services Company

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

One of Toptal's most impressive clients is a machine learning and artificial intelligence platform for marketing. The sophisticated nature of the project required expert developers familiar with cutting-edge technology and complicated programming principles, and Toptal's freelance screening service enabled the client to find freelancers with the right skills quickly. The varying needs of the project made Toptal the right choice because they could easily expand and shift the focus of their development team.

"Toptal made it easy to work with the team. If there was ever anything wrong, it was fixed quickly." – Co-founder, Advertising Technology Firm

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

A healthcare company was building an online tool to facilitate more efficient collaboration between doctors, but Safari didn't support the features they were looking to implement. After deciding to build an iOS app, they hired Future Mind to develop the app and include screen- and video-sharing capabilities, integrated the app with the existing healthcare system, and managed the testing process.

"The workmanship was excellent, as were their depth of knowledge and professionalism. Future Mind came in, gave us tons of change recommendations for certain areas, did the work, wrote the tests, and hit deadlines. Everything went well with this project." — Senior Software Engineer, Healthcare Company

INLOOPX developed a mobile banking app for a bank in the Czech Republic. The app included fingerprint and face recognition technology and integrates with Apple Watch. The partnership is ongoing, and the app won an award in the Czech Republic.

“They have performed great and are responsive. I have no complaints.” – Head of Mobile Banking & Experience, Czech Republic Bank

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

RipenApps developed a website and corresponding native Android app for an IT services company. They also developed a data management system to improve operational analytics and provided visual and written content. They delivered an efficient, user-friendly design. 

“Our experience with RipenApps was great. Everything went well. We were happy because RipenApps really understood what we wanted. The most important thing was making the app and website user-friendly, especially for non-technical people, and RipenApps made it happen.” – Founder, IT Services Company 

Waracle developed an intuitive and easy-to-use app to showcase the client’s intellectual capital and real estate information. Faced with a rigid timeline, the firm delivered an innovative and successful product from their deep experience in development.

"Their technical expertise with mobile apps is second to none." – Director, Real Estate Company

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

Sunflower Lab built an admin app to oversee two native Android and iOS apps for a ridesharing platform. They provided strategic guidance and development work, garnering praise for their technical expertise, timeliness, and communication.

“As a business owner, Ronak understands many different industries, but he is also a technologist. He knows how to implement the latest technologies and make the best product possible.” – Co-Founder, Ride Sharing Service

A political polling startup needed help laying out its app and getting it to market. CognitiveClouds developed and designed the app, which aimed to give people a voice in politics by collecting data from the public to share with the political community. They also helped the client publish the Android and iOS versions in the App Store and Google Play Store. 

"I found the development team to be honest and responsive. When mistakes are made, they owned up to them and fixed them. CognitiveClouds impressed me by taking ownership of the project from the beginning and being very committed to all delivery dates." – Founder, Political Polling Startup

Sonin built an app and website for a custom afterlife messages service. They developed the app to be very user friendly, with the ability to upload photos and letters, and to merge audio, video, images, and text. The client was happy with the finished app, and said that it was simple and intuitive. 

“Their technical competency was the most impressive thing. Some of the features we wanted in the app were quite complex.” – Operations Director, Custom Afterlife Messages Service
 

Promatics worked with a facility services provider to create an app that would let them coordinate better with their customers. They delivered iOS and Android apps, backend development for a website, and design.

“I'm amazed they were able to produce such quality results at such a low price. I expected to pay twice as much as they charged. They offered an unending commitment to my product, and the value for money is simply off the charts.” – Owner, Facilities Service Provider

Uptech worked with a video production company to build a live streaming platform. The client found that the platform brought significantly more business to their company. They continued to work with Uptech to add in new user requested features.

“Since we built this platform, I've been tripling my revenue metrics compared to last year. Their work is reliable and professional. I can control and tweak every aspect.” – CEO, Video Production Company

Chelsea Apps built an SDK for a customer feedback corporation. The SDK was to be inserted in customers' own mobile applications for better testing. It needed to be easy-to-understand for development teams to work with easily. Chelsea Apps made an SDK that was compatible for both Android and iOS.

"We're in the early days, but we've had 3 clients sign up to use the SDK and 2 of those clients are releasing updates to there own apps in the next month, so we're excited to see the user feedback, but the developer feedback so far has been great." - CTO, Customer Feedback Co.

December Labs built a mobile application for a communication technology firm in the US. The client maintains a web-based digital platform for government communication and needed mobile experts to integrate their functions into a mobile app. The December Labs team delivered the project on time with the requisite functionality. Furthermore, they did so with minimal interruptions thanks to proactive project management practices.

"They pay attention to detail, try to understand the problem, and come up with solutions instead of just meeting requirements. December Labs thinks through what you tell them to do and suggests alternatives when they are better for the project." — VP of Engineering, Communication Technology Firm

Sigma Software developed and launched an advertising platform for an advertising technology firm. The firm had a general idea for the platform, but needed the technical skills to launch it. Sigma Software provided interface design and coding, using a team of 8-12 developers. The launched ad platform began successfully generating revenue within 6 months and received positive feedback.

"We consider Sigma Software to be a strategic partner and an integral part of what we're doing at this time." – Founder & CEO, Ad Tech Firm

Rantmedia developed an app for a cybersecurity firm. They used the client’s existing assessment methodology, which was spreadsheet based, to develop an app that would perform the same tasks but be much more user friendly while still being extremely secure. The client was still in the testing phase of the project but reported being extremely happy with the product so far. 

“They never encountered something that was too challenging for them to handle, and it was quite a complex program. They were always very accommodating and took on the work with an incredible amount of grace.” – CTO, Cybersecurity Firm
 

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