Grey Chain
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Mobile Application Development
Build your dream app in a few weeks and launch your startup or business to rapidly get users and revenue.
Let us help you Succeed!
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Sectors we have served
We specialize in mobile app solutions for Non-Profit Industry, eCommerce, Healthcare, Finance, Social Media, Entertainment, Education, Government, Utilities, IoT, and Travel sectors.
Travel & Hospitality
We develop user-friendly platforms that enhance booking, management, and customer experience for travel and hospitality services.
Internet of Things (IoT)
Our IoT applications connect devices and systems, delivering seamless automation and real-time data insights.
Industry & Automation
We offer solutions that enhance industrial operations through automation, increasing efficiency and reducing costs.
Healthcare
We create secure, compliant healthcare applications that improve patient care, appointment management, and data accessibility.
Utility
We deliver efficient, user-friendly tools for managing essential services like energy, water, and public amenities.
Social
Our apps foster community building and engagement through intuitive and interactive social networking tools.
Non-Profit App Development
We provide cost-effective solutions that empower organizations to drive change, manage resources, and increase outreach.
Media & Entertainment
Our services create immersive digital experiences, improving content delivery and user engagement in media platforms.
Education & Training
We build interactive learning platforms that enhance knowledge delivery through user-friendly interfaces and scalable systems.
Government
We develop secure, citizen-centric platforms that streamline public services, ensuring transparency and accessibility.
Finance
Our solutions ensure robust, secure, and compliant financial applications, enhancing user trust and operational efficiency.
E -Commerce
We create seamless shopping experiences with intuitive designs and secure payment systems, boosting customer engagement and sales.
Types of App
Development Services
Native App
Development
iOS - Swift
Swift ensures faster performance and enhanced security, providing a seamless and reliable user experience. Its modern language design allows for efficient development, reducing maintenance costs while ensuring future scalability for the iOS apps.
Android - Kotlin
Kotlin offers improved code safety and reduces development time with concise syntax, ensuring a smoother, more efficient app development process. Its full compatibility with Java and modern features make it ideal for building scalable and maintainable Android applications.
Hybrid App
Development
Flutter
Flutter, backed by Google, enables fast and efficient development of cross-platform apps with a single codebase, reducing time and cost. Its rich set of customizable widgets ensures a consistent, high-performance user experience across both iOS and Android.
React Native
React, maintained by Facebook, allows for building highly responsive and scalable user interfaces with reusable components, improving development efficiency. Its flexibility and strong community support make it ideal for creating dynamic web and mobile applications.
App Development
Staff Augmentation
Hire Mobile Developers
App development staff augmentation provides skilled external developers to complement your in-house team, boosting expertise and accelerating project delivery timelines.
Proven methodology for
world-class mobile apps.
Creating world-class mobile apps combines a mobile-first approach, expert mobile UI/UX design, and agile development for continuous enhancements. With proven expertise in App Store and Play Store deployment for compliance and visibility, along with mobile DevOps and cloud-based backend management, we ensure exceptional user experiences and maintain a competitive edge.
Mobile First Approach
Mobile-first design ensures optimal app performance on mobile devices.
Deep Mobile UI UX Expertise
Deep UI/UX expertise optimizes interactions for intuitive, seamless user experiences.
Agile Software Development
Agile methodologies enable rapid, iterative development, flexibility and collaboration.
App Store Deployment
Expertise in app store submission optimizes visibility and compliance.
Mobile DevOps
DevOps integrates workflows, enhances collaboration,enables continuous delivery.
Scalable Cloud Deployments
Cloud infrastructure supports scalable, reliable app deployment and management.
Success Stories
Discover the impact of Our Work. Start your success journey with us!
Sales Catalog Search App with 1400 Products
- Native Android & iOS apps for SAARC Region
- Compressed manuals and details for smaller app size.
- Local on-device search engine
- Increased product visibility, reduced service desk inquiries by 20%.
Globally Awarded Menstrual Tracking AI App
- Non-Profit Free app for global use
- iOS and Android mobile apps; open-source framework
- 30,000+ adolescent girls using the platform
- Increased menstrual awareness and open-source development among girls
Smart Tech Non-Profit Zoo Visits
- Advanced algorithms give personalized & accurate details about exhibits, events, and animal facts.
- Designed to enrich visits with engaging content.
- Available on both iOS and Android for seamless access.
Offering wellness-enhancing Bioenergetic Wearable App
- IoT app for integrated controls and OTAs
- Bluetooth solution for Nikki medical device
- Local on-device search engine
- Increased sales of new wearable
- Expanded into multiple markets, including Europe
Swipe, Stay Updated Personalized News Hub
- High-performance news delivery app
- Short Form News Content & Podcasts
- React Native Hybrid Apps
- Offline Access
Smart & Seamless Travel for students
- Advanced algorithms give personalized & accurate details about exhibits, events, and animal facts.
- Short Form News Content & Podcasts
- Designed to enrich visits with engaging content.
- Available on both iOS and Android for seamless access.
Personalized CRM for Wellness
- Advanced algorithms give personalized & accurate details about exhibits, events, and animal facts.
- SDesigned to enrich visits with engaging content.
- Available on both iOS and Android for seamless access.
What Our Users Say
Learn how Grey Chain is transforming businesses with Mobile First approach
“Grey Chain has built a well-designed app for iOS users. Their efforts have facilitated a seamless sales process for the client’s team and customers, resulting in record sales performance over the past 13 months. The team’s industry knowledge and flexibility are hallmarks of the partnership. We’ve invested roughly $300,000 in the partnership. They won partner of the year for their work in 2022 and early 2023.
5⭐️ experience!!”
Steve YorkCIO, 1800-Hansons, United States
“The thought leadership and design thinking which they bring in to their deliverables is amazing. They truly partner with us like it is their product and they ensure successful delivery by exhibiting efforts and behaviors far beyond the committed work stack.”
Gautam MehtaVP, SAGE Publishing, UK & India
"Grey Chain’s technical excellence speaks for itself - we are very happy with the finished product and our ability to extend and scale our platform. They truly differentiated themselves by showing great care for our product and goals. Their investment in our outcomes was notable both for its sincerity and for the way it was reflected at all levels of the organization."
Stephen QuadererCEO & Founder, Headero, US
“Their sense of customer service had been really impressive Thoughtful and proactive, Grey Chain Technology delivered its outputs in a time-conscious manner. The end users liked that the app was user-friendly and functional. The team was available and always ready to resolve the client's issues. Overall, their level of commitment was top-notch.”
Dina HananiaGBV Specialist, Care.Org, US
“They focus on working with nonprofit organizations even if the funding streams are a little shaky. We don’t have continuous revenue to pay for a contract up front, so Grey Chain has been really flexible with our payment schedules. We let them know our annual budget can’t exceed a certain threshold, and they work with their management team to adjust the numbers to fit our budget. Overall, their cost for technical quality is always amazing.”
Emily CruzSr. Global Lead for Menstrual Health, Splash International, US
Faq
Have questions?
We've got answers!
Here are some frequency asked questions about mobile app development.
How long will it take to build a mobile app?
The development timeline varies based on the project’s goals and complexity. For a Proof of Concept (POC), we can typically deliver in 2-3 weeks. For a Minimum Viable Product (MVP), which includes essential features and a polished user interface, development can take up to 8 weeks. We also leverage pre-built solutions tailored for common use cases—such as e-commerce, social media, news, sports, and AI-powered apps—which allows us to accelerate the timeline without compromising quality.
Which platform should I target first: iOS, Android, or both?
The best platform to target depends on your audience and business objectives. If you aim to launch a paid or premium app and target users in regions where iOS has a higher adoption, starting with iOS may be ideal. However, if your goal is to reach a broader, global audience, Android provides excellent coverage and reach. We’re here to analyze your specific audience and help you choose the right approach, whether it’s iOS, Android, or a simultaneous launch on both platforms.
What’s the difference between native and hybrid, apps?
Choosing between native and hybrid development depends on the desired performance, user experience, and budget.
- Native apps are built for a specific platform (iOS or Android) using languages like Swift for iOS and Kotlin for Android. They offer the best performance and access to platform-specific features but require separate codebases for each platform.
- Hybrid or Cross-platform apps leverage frameworks like Flutter, allowing a single codebase to run on both iOS and Android with near-native performance. This option is efficient for many use cases, especially when budget or time-to-market is a concern.
- We can guide you in selecting the most suitable approach for your app’s needs.
Will I own the source code and intellectual property (IP) of the app?
Yes, absolutely. Ownership of the source code and all intellectual property (IP) will be fully transferred to you upon project completion. We respect our clients’ proprietary rights, ensuring that your app and its components will not be reused for any other clients or projects.
Do you provide post-launch support and maintenance?
Yes, we offer comprehensive post-launch support to ensure your app runs smoothly from the start. This includes a 4-week free hypercare period immediately after launch, where we address any issues that may arise. Beyond that, we offer tiered maintenance packages—from basic to advanced—customized to meet your app’s evolving needs, ensuring stability, compatibility, and performance over time.
How will we communicate during the development process?
We follow Agile methodologies, which emphasize regular collaboration and transparency. Our team works in 2-week sprints, with a sprint demo at the end of each cycle to showcase progress and gather your feedback. This approach ensures you have continuous visibility into the development process and the ability to make adjustments, creating a seamless, responsive experience from start to finish.
