Custom App Development

Email. Phone Call. Screen Share. Or even meet in person. Let’s schedule a time to talk. We’ve been there and done that, we just have to know you and your idea.

All code developed by OST is the property of our customer after the final payment is made on the last deliverable. End of story.

At OpenSource Technologies (OST) we take the protection of your Intellectual Property (IP) very seriously. To begin with, we sign a Mutual Non-Disclosure Agreement (NDA) to ensure that all your ideas, business information, and project details remain confidential. This agreement provides a legal framework that prevents any misuse or unauthorized sharing of your IP. Throughout the development process, all documentation, code, and assets remain your property, and you retain full ownership once the project is completed and final payment is made.

Yes, we can provide you an NDA of our own or review and sign yours.

Protecting your app idea is an important first step in the App Development process. While the idea itself may not be legally protected, working with a trustworthy development partner can make all the difference. At OpenSource Technologies, we begin every Custom App Development project by signing a Mutual Non-Disclosure Agreement (NDA) to safeguard your concept. We also ensure all project documentation and source code are clearly attributed to you, giving you full ownership and control over your app from start to finish.

At OpenSource Technologies, we pride ourselves on being a Custom Mobile App Development Agency that values transparency, collaboration, and client success. From the very beginning, we maintain clear and open communication about your project’s scope, budget, timelines, and goals. Every phase of the custom app development process—from ideation and design to deployment and support—is handled with a focus on quality and accountability.

What truly sets us apart is our client-first approach. We don’t just build apps—we work with you to ensure that every decision made aligns with your business vision and delivers measurable results. Our team offers expert guidance, scalable solutions, and full ownership of your project, so you’re always in control.

The cost of hiring a Cross Platform Mobile App Development Company depends on various factors such as the complexity of your app, feature requirements, platform choices, and development timelines. Typically, prices can range from a few thousand to tens of thousands of dollars.

At OpenSource Technologies, we believe in complete transparency. Clients can track the progress of their custom app development at any stage of the project. We provide clear communication, milestone-based updates, and full access throughout the process. Most importantly, we give 100% code ownership to our clients upon project completion—ensuring you have total control over your product now and in the future.

Custom iOS App Development Services include the complete app development lifecycle—from ideation and design to development, testing, and deployment on the Apple App Store. These services are tailored to meet specific business requirements, brand identity, and user expectations. At OpenSource Technologies, a leading Custom Mobile App Development Agency, we use modern technologies like Swift and Objective-C to build high-performance iOS apps that are scalable, secure, and user-friendly.

Our services cover UI/UX design, native or hybrid app development, API integration, multi-device testing, and full support with App Store submission. We ensure every custom iOS app aligns with your business goals and delivers a seamless user experience.

Android App Development Services involve designing, building, and maintaining powerful mobile applications specifically for the Android platform. As a top Custom Android App Development Company, OpenSource Technologies delivers tailored Android apps that match your business goals and provide excellent performance across a wide range of devices.

Our team handles everything from planning and design to development using Java or Kotlin, rigorous testing, and deployment on the Google Play Store. As a full-service Custom Mobile App Development Agency, we also offer post-launch support and updates to ensure long-term success. Whether you’re starting from scratch or improving an existing app, we deliver reliable, scalable Android solutions built to perform.

Native app development focuses on building separate applications for iOS and Android using platform-specific technologies like Swift for iOS and Kotlin or Java for Android. These apps offer excellent performance and seamless integration with device features. For example, businesses looking for Custom iOS App Development Services often choose native development to deliver the best user experience on Apple devices. Similarly, Android App Development Services are ideal for building powerful, device-optimized applications for Android users.

On the other hand, cross platform app development allows developers to write a single codebase that runs on both iOS and Android. This approach is ideal for faster development, lower costs, and easier maintenance. As a Cross Platform Mobile App Development Company, OpenSource Technologies helps you choose the best strategy—native or cross-platform—based on your business objectives, budget, and scalability needs.

The time to build a custom mobile app depends on its complexity, features, and desired platform. A basic MVP (Minimum Viable Product) can take around 6–10 weeks, while a fully-featured app may require 3–6 months or more. A reliable custom iOS and android app development company or custom mobile app development agency typically starts with MVP development to validate the idea quickly, then expands based on feedback. Factors like UI/UX, backend setup, and third-party integrations affect the timeline. Partnering with the right agency ensures a streamlined process aligned with your business objectives.

Yes, we can! As part of our Custom iOS App Development Services, OpenSource Technologies (OST) provide full support in publishing your app to the Apple App Store. From preparing the required assets and creating developer accounts to App Store compliance and submission, our team ensures a smooth launch process. Whether you’re building an MVP or a full-scale solution, our Custom App Development approach includes testing, optimization, and post-launch support to meet Apple’s strict guidelines. We simplify the process so you can focus on growing your business while we handle the technical side.

Yes, we offer comprehensive post-launch support and maintenance services as part of our Custom App Development solutions. Whether it’s fixing bugs, improving performance, or updating features, our team ensures your app stays optimized and user-friendly. Our Custom Mobile App Development Agency is committed to your long-term success.

Yes, OST specializes in integrating advanced features like AI and machine learning into custom apps. Whether you need predictive analytics, chatbots, recommendation systems, or image recognition, our Custom Mobile App Development Agency can tailor solutions to your business goals. We also support industry-specific needs—such as using AI-augmented insights in Hospital Information Systems—to enhance diagnostics, patient management, and operational efficiency. With deep expertise in Custom App Development, we ensure your application leverages intelligent automation and real-time data processing to deliver smarter user experiences and better decision-making capabilities.

Businesses can start by identifying areas where AI can enhance their app—such as personalization, automation, or data insights. Partnering with a Custom Mobile App Development Agency is key to defining the right strategy. At OST, our Custom iOS App Development Services guide businesses through AI integration, from MVP planning to deployment, ensuring the app is scalable, efficient, and aligned with user needs and long-term goals. To see real-world examples, visit our Case Study page.

The main programming languages for iOS app development are Swift and Objective-C. Swift is Apple’s modern, fast, and secure language, widely used for building new iOS apps. Objective-C, though older, is still maintained for apps with legacy codebases. The choice between the two depends on your app’s goals, complexity, and future updates. Experienced development agencies typically use Swift for most projects due to its performance and developer-friendly features.

AI is widely used in app development to improve user experience and functionality. Common examples include chatbots for customer support, voice recognition for hands-free control, personalized content recommendations, and image or facial recognition. AI can also help analyze user behavior to offer smarter suggestions and automate repetitive tasks, making apps more efficient, responsive, and engaging. To see real-world examples, visit our Case Study page.

For mobile app development, we utilize a wide range of modern technologies tailored to your project’s goals. This includes native languages like Swift for iOS and Kotlin for Android, as well as cross-platform frameworks like Flutter, React Native, and Ionic for faster deployment. We also integrate backend technologies such as Node.js or PHP, and databases like Firebase or PostgreSQL. Depending on your needs, we can include APIs, cloud services, and AI integrations for enhanced functionality.