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Sport
Sport Scheduling Platform
UX/UI DesignWeb & Mobile Development+3
MOBILE APP DEVELOPMENT
We ship mobile apps .
Native iOS, Android, and cross-platform mobile apps built with React Native and Flutter. From MVP to 1M+ users, we build apps that convert and retain.
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App Development Process
From Idea to the App Store
Every mobile app we build goes through a rigorous development pipeline: researched, designed, tested across real devices, and optimized for store approval.
DiscoveryMarket Research / User Personas
UX/UI DesignWireframes / Prototypes / Motion
DevelopmentNative / Cross-platform / APIs
QA & TestingDevice Lab / Automation / Beta
App Store LaunchASO / Submission / Approval
Growth & SupportAnalytics / Updates / Scaling
Who is it for?
Full-cycle mobile app development for every type of business
Get the highest quality solutions no matter how big or small your company is. Let us help you unlock the full potential of mobile technology for your business.
Startups
Convert your vision into a sustainable business. Our discovery phase helps to find solutions that fit within the industry and target audience. We find solutions for the shortest time to market while maintaining quality.
01Small & medium businesses
Enhance customers' experience and stay ahead of the competition. Our team will develop a mobile app that aligns with your brand identity, engages users, inspires loyalty, and drives conversions.
02Enterprises
Transform your operations and enhance business productivity. We will work closely with your company to understand your unique requirements and develop a customized mobile app that streamlines operations securely and efficiently.
03WHAT WE DO
Our Mobile App services
- 01
iPhone App Development
We specialize in creating high-quality and user-friendly iPhone applications tailored to your unique requirements, helping you reach and engage your target audience.
- 02
Android App Development
Our team of experts excels in building robust and feature-rich Android applications that are compatible with a wide range of devices, ensuring high user satisfaction.
- 03
Cross-platform App Development
With our cross-platform app development expertise, we can create mobile applications that work seamlessly across multiple platforms, saving you time and cost while reaching a larger audience.
- 04
UI/UX Mobile App Design
We offer top-notch UI/UX mobile app design services that prioritize user experience, ensuring your app stands out with visually appealing interfaces and intuitive interactions.
- 05
AI-enabled Mobile App Development
Harnessing the power of artificial intelligence, we develop intelligent mobile applications that can automate tasks, provide personalized experiences, and deliver enhanced value to your users.
- 06
Mobile App Prototyping & MVP
Our prototyping and Minimum Viable Product (MVP) development services enable you to quickly validate your app idea, minimize risks, and gather valuable user feedback before full-scale development.
- 07
Third-party Integrations
We seamlessly integrate third-party services and APIs into your mobile app, enhancing its functionality and providing access to a wide range of features and services.
- 08
QA & App Testing
We conduct comprehensive quality assurance and app testing to ensure your mobile application is free from bugs, performs reliably, and delivers a seamless user experience on all devices.
Our Process
From concept to the App Store
Our proven mobile app development process with clear milestones and deliverables.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Project Kickoff
Phase 1 of 5
1 weekWe align on your app concept, target platforms (iOS, Android, or cross-platform), and success metrics. Scope, milestones, and communication channels are locked in before any design work starts.
Deliverables
Signed ContractApp Brief & Platform StrategyTeam IntroductionProject Board SetupDiscovery & Design
Phase 2 of 5
2-3 weeksWe research competing apps and store categories, map user flows, and design native-feeling screens that follow Apple HIG and Material guidelines while staying true to your brand.
Deliverables
Competitor & Store ResearchUser Flow MapsHigh-Fidelity App ScreensMobile Design SystemPrototype & Testing
Phase 3 of 5
1-2 weeksA clickable prototype goes in front of real users on real devices. We run moderated tests, capture friction points, and iterate on navigation and onboarding before a line of production code is written.
Deliverables
Clickable PrototypeUsability Test SessionsFindings ReportRevised Screen DesignsDevelopment
Phase 4 of 5
4-6 weeksAI-assisted engineers build the app in React Native, Flutter, or native Swift and Kotlin, wire up your backend and third-party services, and keep quality high with automated tests on every build.
Deliverables
iOS & Android BuildsBackend API & DatabaseThird-Party IntegrationsAutomated Test SuiteLaunch & Growth
Phase 5 of 5
2+ weeksWe handle App Store and Google Play submission, set up crash and analytics monitoring, and stay on call through the first releases so your app launches stable and keeps improving.
Deliverables
App Store & Play ListingsCrash & Analytics MonitoringHandover DocumentationPost-Launch Support Plan
TECHNICAL STACK
Technologies that power your app
We use cutting-edge mobile technologies and frameworks trusted by the world's top app teams to build fast, reliable, and scalable mobile experiences.
React Native
Flutter
Swift
Kotlin
- Xcode
- Android Studio
Firebase
- Expo
TypeScript
- REST APIs
GraphQL
- TestFlight
- App Store Connect
- Google Play Console
- Fastlane
Key Benefits
Reasons to choose Design Key for mobile app development
We know that every app is unique. Therefore, we take the time to study your business idea, target audience, and industry. This allows our managers and architects to create a customized development strategy and build software that aligns with your business goals.
Tailored Solutions, Personal Approach
We know that every app is unique. Therefore, we take the time to study your business idea, target audience, and industry. This allows our managers and architects to create a customized development strategy and build software that aligns with your business goals.
Seamless User Experience
Our UI/UX designers work closely with the development and QA teams to create intuitive, visually stunning interfaces that are implemented into clean and efficient work. Our approach ensures that users will seamlessly navigate your app and accomplish their goals.
Streamlined Development
We apply Agile methodology and work in sprints to make our work productive and easy to track. It helps us build top-notch apps on budget and within the set timeline. Plus, it allows us to adapt quickly to any changes in the project needs.
Transparent Communication
Dedicated managers always keep our clients informed about the project status, every tech decision, and its results. Our business analysts create comprehensive documentation to help our clients navigate the tech parts of their applications.
Fast and Strategic Market Entry
We can help you refine your mobile app idea through the discovery phase and build a minimum viable product (MVP). This cost-effective approach allows startup founders to validate the idea and enter the market wisely.
Ongoing Support and Maintenance
Even after launching the mobile app, we aim to keep it current, safe, and working well on various devices and systems. We have a process for the post-launch phase that enables us to deliver timely hotfixes and ongoing app support.
WHAT OUR CLIENTS SAY
Real results from real clients
0+Projects Delivered
0%Client Satisfaction
0+Team Members
0+Years Experience
"Daniel and his team have worked on several infrastructure development projects for me. They are excellent experts with exceptional client service and communication skills. Able to dig through complex project requirements and produce an end product that exceeds expectations."
Lori Barao
Manager of Operations, MMI Direct
Case studies
Real projects we've shipped
Recent projects we built for clients - each one shipped, in production, and serving real users.
FAQ
Questions? Answers.
Common questions about our mobile app development services.
Ready to get started?
Ready to launch your mobile app?
Schedule a 30-minute intro call with Daniel Killyevo, Founder and Technical Lead at Design Key. We'll discuss your app concept and map out a plan to get it into users' hands.
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