Our expert analysts identified the leading mobile app developers in California that create high-performance apps that engage and retain their user base. Filter listings by city, team size, cost of services and reviews to personalize your search. Choose the best partner for your brand and take advantage of these agencies' expertise and experience.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
IT Solutions for Promising Businesses
We are a full-cycle IT development company that designs and creates perfect solutions based in the US with HQ in Walnut, California. Our experience in diverse marketplaces allows us to offer high-level service to our clients with a clear understanding of their need for flexibility, speed, and agility...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- UI/UX Design
- Web Development
- Show more
- Location
- Walnut, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPtolemay Services
Data sourced from the agency's DesignRush profileSamsung Knauf Tilda RetailCRM Coca-Cola Roonyx INC Sola Technaxis Arsidian LLC Cumulative Business Solutions LLC Tegen LLC
Ptolemay Reviews & Testimonials

Mobile App Development Review from Vladimir Drogan
They are the top app developers Ive ever worked withI'm most impressed with Ptolemay's ability to properly plan the process, manage their work, and communicate early about what it will take. They're clearly experienced, understand what's needed, and are truthful and honest about it. With Ptolemay, I don't have to worry about the ongoing process since all updates are easy to access.

Mobile App Development Review from Ekaterina Rebus
They are true experts in mobile app development!The most important thing to us when working with any company is that they take responsibility for the work they do and show a high level of expertise in their field. We have never worked with a company that has demonstrated such dedication to their craft as Ptolemay. They have always shown up prepared and ready to get started on the project at hand, and they have even gone above and beyond in order to produce exceptional products.
Анастасия Головенко's Review Sourced from Google
We cooperate with Ptolemay for the last couple of years in terms of outstaffing demands. As we have already worked on more than 6 big projects, they have proven themselves as a reliable partner that provide high quality developers. Despite the difficulty of the position we need, they are always ready to involve their team to help us cover the demand. Even though any cooperation tend to have its own issues and misunderstanding, the Ptolemays’ team has always been open for resolving problems and finding compromise
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Build Games That Players Love.
Double Coconut is a San Franciscobased boutique game development studio founded in 2012. The agency specializes in full-service game design and co-developmentfrom casual mobile and web titles to casino, mid-core, and Web3 games. Their projects have reached over 5 million players and generated...
Top Services:
- Software Development
- Web Design
- Mobile App Development
- Blockchain
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDouble Coconut Services
Data sourced from the agency's DesignRush profileMicrosoft WB Cartoon Network Ellen Degeneres MIT IBM SAP iWin Addicting Games Penn Gaming
Make the Boring Part Easy.
Chainlift is a specialized web development firm offering tailored solutions for front-end, back-end, and middleware development. Dedicated to empowering startups, small businesses, and entrepreneurs, Chainlift is committed to elevating great ideas to new heights...
Top Services:
- eCommerce Development
- Mobile App Development
- Web Design
- Location
- Oakland, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsChainlift Services
Data sourced from the agency's DesignRush profileThe Utzat Group GEM Theatre SoCal Powerlifting
Chainlift Reviews & Testimonials
Jacob Zaionz's Review Sourced from Google
Chainlift has been nothing short of a blessing for me and my business! I've had so many questions and they've been continually patient and informative at every step of the way. They even set me up with weekly reports on search engine rankings to provide me with insights about how we're performing in our market. 11/10, would recommend to a friend!!!Thank you, Chainlift!!!
Justin Melbourne's Review Sourced from Google
I discovered Chainlift through their videos on YouTube and was immediately impressed with their LiftKit system.I’m in the process of transferring my personal and professional websites over to their system so that they can put my best foot forward.The team has been very professional and provided personal approach to my projects.
Kelly Pratt's Review Sourced from Google
Would highly recommend Chainlift for any web design and development needs. They were a huge help to us when we needed support building a new website. Communication was great throughout the entire process, the team is highly knowledgeable, and we are thrilled with the final results of the project.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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