React Native app development / iOS & Android
I help founders build mobile MVPs and owners improve existing React Native apps. From the first flow to backend integration, testing and handover—work directly with the engineer doing the build.
Free · 20 minutes · No obligation
Your engineer, from the first call.
Across software projects · Upwork & Fiverr
Chirag Gupta 6+ years in software engineering
A few of the teams I've worked with
Your starting point
You do not need every technical answer before we talk. Start with what the app needs to do, or show me where it gets stuck.
01 / For founders
Start with one useful customer workflow, such as booking a service, accessing a membership or sharing a plan. Define what the MVP must do and which ideas can wait.
02 / For app owners
Bring the failing flow, build error or feature request. A code review establishes whether a focused fix, dependency update or larger change is appropriate.
The work / RoamLine
In development · Website waitlist openRoamLine is in development for iOS and Android. Its public website accepts waitlist sign-ups. The screenshots are product previews from that website.
A road trip app bringing routes, shared itineraries and expenses into one place. The documented implementation includes ordered trip stops, membership-based access, backend place discovery and directions, and separate expense and settlement records.
The documented data model keeps ordered stops within a trip, while vehicles, expenses, settlements and tracking sessions have their own records. That gives each part of a journey a clear place in the system.
Accepted trip membership and roles govern access. An invitation alone does not grant membership, so sharing a plan and authorising access remain distinct steps.
Backend services mediate place discovery and directions. Route and suggestion caches are invalidated around edits, keeping route changes connected to the calculations they affect.
Development work and product previews. App-store release, production usage and business outcomes are not established by this example.
Built on good working relationships
Clear communication. Thoughtful execution. Clients who come back.
Client feedback from other software projects. RoamLine is a separate project in development.
Working with Chirag on RetroYugi was a great experience overall. Super available, helpful and easy to work with from day one. What I appreciated the most was definitely the follow-up care and his adaptability during the whole process — always present, quick to adjust when needed and proactive in finding solutions.
Chirag did an outstanding job on my website. The documentation was thorough, the attention to detail was impeccable, and the project was bug-free. Polite, responsive, and delivered everything right on time.
Working with Chirag has been a phenomenal experience. Throughout our multiple projects, Chirag consistently demonstrates professionalism and punctuality, delivering top-quality work on time. I highly recommend Chirag for any development tasks and eagerly await our future collaborations.
He is an incredibly talented developer. He goes above and beyond to make everything perfect. The task I had was complicated but he completed it with ease. I HIGHLY recommend him. I will be using his services for all my projects.
Chirag is an incredibly knowledgeable individual who effortlessly imparts his expertise and provides invaluable suggestions based on his vast experience. I am genuinely grateful for his guidance and eagerly anticipate the opportunity to collaborate further.
Once again, Chirag proved to be dependable and skilled. His steady performance and professional approach make him incredibly easy to work with. Looking forward to the next one!
Chirag has a good grip on the technical aspect of development. He was quick to understand the requirement and delivered as expected on Time. I would like to work with him again.
Chirag delivered good work on this Angular upgrade project and I enjoyed working with him. His communication was top-notch, he delivered the project even earlier than planned, and his skills were reasonably strong. I enjoyed working with Chirag and will likely have additional jobs for him in the future.
Chirag's expertise in multiple technologies is truly impressive. His ability to seamlessly combine these skills to create robust and visually appealing web applications is commendable. Chirag's code is clean, efficient, and well-structured, reflecting his strong technical skills and commitment.
Really great experience. Very communicative throughout the project, letting me know what he’s done so we don’t get sidetracked. Patient, knowledgeable, and very helpful. We are in discussion for the next project. Highly recommend.
Great work. Fast turnaround and was responsive to every queries and adhere deadlines. Highly recommended.
Exceptional services, consistently professional. Impressed by his professionalism and dedication. Look forward to future collaboration.
Chirag consistently delivered quality work, and met deadlines. His professionalism and reliable performance made working with him a great experience.
Chirag never fails to impress! Working with Chirag is always a pleasure, and he consistently delivers exceptional results. His attention to detail and clear communication make it easy to work with him, and I am constantly impressed by his precision. I have the utmost respect for Chirag's skills.
Good working relationships. Across borders.
United States
Canada
India
United Arab Emirates
Israel
Netherlands
Italy
AustraliaThe scope / Agreed around your product
React Native and Expo for the app. The engineering around it makes the whole journey work—from signing in to a useful result.
Build shared app flows for iOS and Android: onboarding, navigation, forms and the core customer task. Check platform differences and native-module requirements before choosing the implementation.
Review your repository, reproduce problems and assess dependencies before proposing changes. Add features, repair broken journeys or plan React Native and Expo upgrades around what already works.
Connect your existing APIs or build the agreed backend and database. Include authentication, server-side access checks, validation, loading states and useful handling of failed requests.
Scope maps, location, camera access or notifications when they support the product. Review permissions, device behavior, privacy requirements and external service costs before committing to them.
Agree on target devices and OS versions, then test critical journeys, account permissions and failure cases. Check real-device behavior alongside automated coverage where it provides useful protection.
Prepare agreed build profiles, signing and environment configuration in your accounts. Support test distribution and store submission when scoped, then hand over the repository, setup instructions and known issues.
The process
A practical process for a new mobile MVP or an existing app. We agree on the deliverables, estimate and milestones before implementation.
Discover
Discuss the users, core task, target platforms and constraints. For an existing app, inspect the repository, reproduce issues and check connected services before recommending work.
Scope
Define essential screens, API contracts, supported devices and acceptance criteria. Record dependencies, deferred features, release responsibilities, milestones and the estimate.
Build & test
Implement in reviewable steps across the app and backend. Test the agreed flows, access boundaries, permissions and network failures on the target platforms, and review progress together.
Release
Produce the agreed builds, verify test distribution and support submission if included. Hand over code, configuration guidance, deployment steps and remaining issues; agree on maintenance coverage separately.
Before we start
Scope, platforms, ownership and what release actually involves.
Yes. We define the essential user journeys and assess which parts can share a React Native codebase. Platform-specific capabilities, target devices and the release scope are agreed before implementation.
Yes, after reviewing the source code, dependencies, connected services and reported issues. I can propose feature work, targeted repairs or an upgrade plan. The review determines what can be retained and what needs changing.
Yes, subject to reviewing the API contracts, authentication and access requirements. The scope can cover existing API integration or new backend endpoints and persistence where required. Credentials and privileged access checks belong on the backend.
Expo is a useful option, but the choice follows the app’s native-module requirements and existing setup. I review device features, build constraints and required SDK compatibility before recommending an Expo or existing React Native workflow.
Both depend on the app’s condition, required journeys, integrations, device features and release requirements. We agree on a scoped estimate and milestones after discovery or code review. Store accounts, hosting and third-party services are separate operating costs.
Testing covers the agreed devices, platforms and critical journeys. Build configuration, test distribution and App Store or Google Play submission support can be included in scope. You control the developer accounts; review decisions and approval timing belong to Apple and Google and cannot be guaranteed.
RoamLine is in development for iOS and Android. Its public website accepts waitlist sign-ups. The screenshots are product previews, and the documented implementation is an engineering example; they do not establish an app-store launch or production user results.
Your project repository and developer, hosting and service accounts remain under your control. Handover includes the agreed setup and build documentation, configuration guidance and known issues. Third-party licenses still apply, and ongoing fixes, upgrades and support coverage are agreed as part of the engagement.
Your mobile app / The next step
Bring the product idea and essential user journey, or your existing app and the flow that needs help. A free 20-minute scoping call helps identify a sensible next step; detailed code review and implementation are scoped separately.
What we can talk through
Free · 20 minutes · No obligation
This first conversation helps define a next step. A specification, quote and delivery plan follow a review of your needs.
Pick a time to talk
