WillowTree, Inc.®

We Take Mobile Personally™

"WillowTree have been one of the top vendors that we have worked with over the past few years. They have done exceptional work."
— Director, Leading Direct Marketing Firm

"It really felt like a partnership. They brought a fresh enthusiasm to the project."
— Director of Web Services, Leading Public University

Charlottesville, VA
Employees: 50 - 249
$100 - $149/hr
888.329.9875

Appster

The App Developer for Entrepreneurs and Start-ups

"Their communication levels and genuine empathy with the products and companies they work for were outstanding. Appster has a genuine love for creating innovative ideas and apps. They love the passion that budding entrepreneurs and large corporations bring to the table."
— CEO and Founder, Social Startup

"Their commitment to excellence has been exemplary. They have not hesitated to fix and get it right...The quality has been fantastic."
— Founder, Startup Company"

San Francisco, CA
Employees: 250 - 999
$50 - $99/hr
844.277.7837

OpenXcell

Software & Mobile App Development Company

"I’ve dealt with numerous IT development firms and, hands down, this is the first and only firm that has been reliable as far as timeliness of communication and knowledge. I don’t think I would even go to anybody else after doing business with them."
— Founder, Mobile App Startup

"The communication is great, and we are more than satisfied with the quality."
— Project Manager, Development Firm

Ahmedabad, India
Employees: 50 - 249
< $25/hr
888.777.4629

“We are extremely satisfied with Y Media Labs and have returned to them for multiple development projects. Y Media produces great looking and functioning apps.”
— Founder, Educational Mobile App Firm

"Y Media labs has done a great job developing our apps. So far, they have developed 7 of our total 56 applications and we are pleased enough to continue working with them to develop all of our remaining applications."
— Founder, Theme Park App Firm

Redwood City, CA
Employees: 50 - 249
$150 - $199/hr
415.839.8584

Konstant Infosolutions

Web & Mobile App Development Company

"The creative process was awesome. I was impressed because they [Konstant Infosolutions] have no idea what our business is. I gave them a crash course on our business. They grasped the concept very well and very quickly."
— Solutions Specialist, LED Light Manufacturer

"Konstant Infosolutions did their best to make me feel like I was a part of the process even though I couldn't be there physically. I think they did a great job."
— Owner, App Startup Company

Jaipur, India
Employees: 50 - 249
< $25/hr
91.141.2291398

Zco Corporation

A Tried-and-True Development Company

"It has been a pleasure to work with Zco to develop our application, and I would highly recommend them to anyone who is looking for a professional and experienced company that does exceptional work."
— Co-Founder, Fun Face Photos (Entertainment Application)

"We are so satisfied with Zco that we have started a second phase of work with them that is currently ongoing."
— Manager, Global IT Manufacturer

Nashua, NH
Employees: 50 - 249
$50 - $99/hr
603.881.9200

Intellectsoft

Developing serious software solutions

"Working with Intellectsoft has been a very positive experience. They’re a small company, and we found that as a result they were able to give us a great deal of attention. We’re extremely satisfied with the application and we hope to partner with Intellectsoft for future projects."
— CEO, Software as a Service Company

"We are unbelievably happy. I’m very, very happy with the work they delivered."
— Managing Director, Mobile Gaming Start-up

Palo Alto, CA
Employees: 50 - 249
$50 - $99/hr
408.879.7338

Toptal

Hire the top 3% of freelance talent.

"What separates [Toptal]... is that they are great at vetting candidates and at making sure they’re at the top of their game. That’s their secret formula."
— Founder & CEO at MJCZone, Inc.​ (Business Services)

"The developer they assigned to us was extremely intelligent. He had a lot of practical knowledge and an intuitive sense of design."
— Vice President of Sales & Development, Business Services Firm​

San Francisco, CA
Employees: 250 - 999
$100 - $149/hr
888.604.3188

TechAhead

The Mobile App Development Experts

"I was very happy with their work. The software came out better than I anticipated. TechAhead was willing to go the extra mile for me. I was impressed with the way they handle a project, the team they assign to it, the competency that was executed, and the quality of the product at the end."
— Development Manager, Nonprofit Production Company

"TechAhead is a very diverse group with expertise in almost any technology that you can imagine."
— President, Business Intelligence and Data Management Company

Noida, India
Employees: 50 - 249
$25 - $49/hr
91.99.10.224009

PhD Labs

Design. Build. Launch.

"They grasp the concepts; they ask the right questions, and they come back with a design that surpasses expectations."
— Systems Manager, Global 500 Consumer Products Firm

"For us to put the kind of trust in them to help spearhead and develop the first version of our platform, speaks volumes."
— COO, Healthcare Startup

Irvine, CA
Employees: 10 - 49
$100 - $149/hr
949.214.4003

Prismetric Technologies

Delivering Quality Products and Premium Services

"They just take it and run with it, and if they have any questions, they’ll chase me down and ask me. But, they just run with it...really makes me want to work with them again and again."
— CEO, Software Development Firm

"I’m very happy....it was definitely a good experience."
— Mobile App Entrepreneur

Gandhinagar, India
Employees: 10 - 49
< $25/hr
+91-79-40070367

LeewayHertz

Enterprise Class Mobile App Development Company

"I think they're one of the best IT companies I've had a chance to work with."
— Co-founder, Travel & Leisure Firm

"Overall, they have a very good understanding of what works and what doesn’t, and how to make apps easy and intuitive to use."
— Marketing Specialist, Manufacturing Firm

San Francisco, CA
Employees: 50 - 249
$100 - $149/hr
866.907.8883

Softeq Development

Custom software: web, wearable, mobile, embedded

"Softeq puts in the extra work, and really tries to build a deep relationship with their clients. By the end of our project they were anticipating what our problems and needs were going to be, and this allowed us to move much faster."
— Digital Innovation Lead, Fortune 500 Sports Apparel Brand

"Softeq has been a great partner for us...They bend over backwards to make sure their US clients are happy"
— CEO, Digital Marketing Agency

Houston, TX
Employees: 50 - 249
$25 - $49/hr
281.552.5000

Worry Free Labs

We Create Remarkable Mobile Experiences

"They are extremely professional, extremely honest, and they’re going to be there for the long term."
— Owner, Wholesale Startup

"We’re very happy with the caliber of work, communication, and ability to meet deadlines."
— CEO, Technology Startup

New York, NY
Employees: 50 - 249
$100 - $149/hr
646.741.5006

ChromeInfo Technologies

Mobile Development & Testing Company

"They’re very professional about how they approach everything. They’re very methodical and very accommodating."
—Entrepreneur, Mobile Application Developer

"What I found that I really enjoyed about them was their flexibility​"
—Owner and Founder, Small Consulting Services Firm

San Jose, CA
Employees: 50 - 249
< $25/hr
408.786.5369

"We are very satisfied with our partnership with July Systems. July Systems is a much smaller shop than we typically work with, which allows for a more flexible and responsive partnership."
— Vice President of Information Technology, Specialty Retailer

"They take a long-term view and were able to work with us around challenges that popped up along the way. I felt like they were an extension of our company."
— Media Director, Sport Association

Burlingame, CA
Employees: 50 - 249
$50 - $99/hr
650.685.2460

SIMpalm

Mobile App and Web Development Company

"They’re a really good mobile app development company and they are very focused. You can tell they are experts in the field. We’ll definitely be working with them in the future."
— Project Manager, Global Consulting Firm

“SIMpalm delivered exactly what we asked them to do and in the timeframe they had estimated."
— President, Medical Device Design Firm

Silver Spring, MD
Employees: 10 - 49
410.800.3973

Oxagile

Full-cycle software development company

"They embraced the project and embraced the development because it is full of interesting challenges. I can see a real excitement on their part."
— CTO/Cofounder, IT and Services

"They go out of their way, they are respectful. They take care of many of the more difficult parts in the process."
— Technical Director - CTO, SaaS, Risk Management

New York, NY
Employees: 50 - 249
$25 - $49/hr
855.466.9244

Yalantis

Native iOS and Android app development company

"Out of all the development teams we’ve tried, Yalantis has an ability to say no, which is huge. They have the ability to be self-steering, and they have problem solving skills. It’s almost like they’re here." 
— CEO, Business Intelligence Provider

"I think Yalantis provides a great service for their cost, especially relative to other app companies that provide a similar level of development." 
— Co-founder, Online Publication

Dnepropetrovsk, Ukraine
Employees: 50 - 249
$25 - $49/hr

Hyperlink InfoSystem

Best Android & iPhone App Development Services

"I really appreciated the work that Hyperlink Infosystem provided. They were very helpful, responsive, and very fast...Hyperlink Infosystem was available for me 24/7."
— Owner, Taxi App Startup

"I didn’t expect much, but they’ve blown me away with their level of commitment and their quality of service. The quality of code they delivered is bar none – the best I’ve seen provided to me thus far. They do fantastic work." 
— President, Mobile Application Development Company

Ahmedabad, India
Employees: 50 - 249
< $25/hr
+91-8000-161-161