I Build Apps for Web & Mobile. 20 yrs of experience, new to freelancing. Core skills - Building ecommerce apps, reading mobile apps, games and AI automation.
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I Build Apps for Web & Mobile. 20 yrs of experience, new to freelancing. Core skills - Building ecommerce apps, reading mobile apps, games and AI automation.
See MoreI'm passionate about creating engaging and thoughtful gameplay experiences and enjoy collaborating with teams to achieve our shared goals. My background in AR/VR developm...
See MoreOptimus Fintech is an AI-powered payment reconciliation platform that automates financial data management for finance and accounting teams. The company streamlines paymen...
See MoreI'm an App Developer expert based in San Francisco, United States. I specialise in Amazon Web Services, and bring hands-on experience to every brief.
See MoreHello! I'm James Coll, a seasoned Software Architect and Engineer with a strong background in designing and developing scalable software solutions. Over the years, I have...
See MoreHi, I’m Rahul Hatkar, an AI/ML Engineer based in San Francisco who specializes in building production-grade AI systems, agents, and retrieval-augmented generation pipelin...
See MoreBased in San Francisco, United States, I'm an App Developer expert focused on Amazon Web Services, CSS, and Docker. I take a clear, collaborative approach to every projec...
See MoreI’m a software developer with 4+ years of experience building scalable banking and retail platforms using Java, Spring Boot, React, and cloud-native architectures. I spec...
See MoreI am a Senior Software Engineer with about 6 years of experience. My work emphasizes scalable thinking, operational efficiency, and transparent execution through automati...
See MoreI'm Ali Hadwan, a Software Engineer with a B.A. in Computer Science. I love building full-stack applications using React, TypeScript, and Flask, focusing on scalable, use...
See MoreI'm Marc Merino, a software engineer with a passion for building scalable backend systems, data pipelines, and cloud-based solutions. I enjoy mentoring teammates, improvi...
See MoreI am a full-stack engineer with 10+ years of experience building scalable, data-driven web applications and interactive SaaS dashboards. I specialize in React, Next.js, a...
See MoreWe have over 14,500 App Developers who've worked in many different industries and cover various styles and skillsets.
Start your searchProjects that brands and startups post most often.
End-to-end build of a v1 product: front-end, back-end, and deployment.
Build your MVPShort engagement to clear a backlog of bugs and stabilise a release.
Stabilise your releaseAdd LLM-powered features to your product, copilots, semantic search, or summarisation.
Integrate AIReact Native or Flutter app for iOS and Android from your existing spec.
Build your appDevelopment specialisms and the cross-functional roles you'll often hire alongside.
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Reviews
“Ritik has done a good job in developing and publishing mobile app and his production support after deployment is helping me to manage app better.”
Abhijeet @ Yoday
Jul 27, 2026
“We had a great experience working with Nitin Jha. He is a skilled Flutter Developer who quickly understood our requirements and delivered a high-quality, user-friendly mobile application on time. His professionalism, technical expertise, and responsiveness throughout the project were outstanding. We highly recommend Nitin...”
sapna @ jemini
Jul 26, 2026
“Mark Scicluna is a great developer. I confidently endorse Mark’s capabilities and character.”
Theodore @ Rhizomenet Pty. Ltd.
Jul 24, 2026
“*"Working with Piyush was a smooth experience. He delivered a clean, professional website on time and was responsive throughout the project. Highly recommended for anyone looking for quality web development services."*.”
shraddha @ swastik clinic
Jul 23, 2026
“Jaskaran singh built my website from start to finish, and the entire process was smooth and professional. He understood exactly what I needed, delivered on time, and the final result exceeded my expectations. The site looks clean, works flawlessly, and was exactly what my business needed. I highly recommend him to anyone...”
tirath @ tirath electronics
Jul 15, 2026
“Omais is a highly skilled and reliable freelancer who did a fantastic job on my Web App project. I trusted him with complex technical tasks, including working directly within a Windows Server VPS environment, and he handled everything seamlessly. He is professional, efficient, and delivers great results. I highly recommend...”
Julio @ Two Brothers Flooring, LLC
Jul 13, 2026

Clients Rate Twine App Developers 4.97 / 5.0
on average across 917917 reviews
3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
Within 24 hours, you'll see a shortlist of vetted App Developers matched to your project.
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Funds are held in escrow and only released when you approve the deliverables. If the work isn't right, your money doesn't move. 10% commission on payments up to $10,000, just 5% on anything above.
Pick the role, the experience level and how long you need. We’ll show you what similar projects have cost on Twine. It’s a guide, not a quote.
Estimates only. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
$5,500 – $15,000
Full possible range for a mid-level App Developer over 2–4 weeks
Common questions answered before you post a project.
An App Developer specializes in creating, testing, and maintaining applications for mobile devices and desktops. They work closely with clients to understand their needs and translate them into functional software. Responsibilities include:
App Developers can work on various platforms, including iOS, Android, and web applications, ensuring a seamless user experience across devices.
Exceptional App Developers possess a combination of technical skills, creativity, and interpersonal abilities. Key qualities include:
These attributes enable them to deliver innovative solutions and contribute positively to project success.
Typical day rates for App Developers in United States vary by experience level:
These are indicative ranges based on Twine project data. Final budgets depend on project scope and are agreed directly with your freelancer.
To recognize the perfect App Developer, assess their portfolio for relevant project experience and quality of work. Look for testimonials or reviews from previous clients to gauge reliability and professionalism. Conduct interviews to evaluate their understanding of your project and their approach to problem-solving. Additionally, consider their communication style and responsiveness, as these traits are essential for effective collaboration. Finally, ensure they have the technical skills required for your specific application needs.
When interviewing an App Developer, consider asking the following key questions:
These questions will help you gauge their expertise and fit for your project.
To hire an App Developer in San Francisco, start by defining your project requirements, including the type of application, desired features, and budget. Utilize platforms like Twine to access a pool of skilled professionals. Post your project and specify the timeline and budget. Review portfolios and invite developers to apply based on their expertise and experience. Conduct interviews to assess their skills, communication style, and compatibility with your project. Finally, ensure that you discuss the project scope and expectations clearly before finalizing the hire.
Hiring a freelance App Developer typically offers more flexibility and cost-effectiveness compared to an agency. Freelancers often have lower overhead costs, allowing them to offer competitive rates. They can provide personalized attention and quick turnaround times. In contrast, agencies may offer a broader range of services with a team of experts, ensuring diverse skill sets and resources. Agencies can handle larger projects but might charge higher fees and involve more bureaucratic processes. Consider your project size, budget, and specific needs when making a decision.
A well-structured project brief or job description for an App Developer should include the following elements:
Providing clear information will help attract suitable candidates and ensure alignment on project expectations.
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