Mobile AppFlutterFirebaseNode.js
RentMate
Rental management app for property owners and tenants, covering rent tracking, tenants and reminders.
Published on Google Play. Owners track rent and tenants in one app.
View on Google PlayProduct Development
Web and mobile app development services
We turn your idea into a polished web or mobile product: researched, designed, engineered and launched by one accountable team.
Ideal for
- Startups validating a new product idea
- Clinics, retailers and service businesses going digital
- Companies replacing manual processes with an app
- Teams that need extra engineering capacity for a launch
Overview
ResolveWithApp is a product development partner for founders, small businesses and growing companies across India. From our base in Tamil Nadu, we design and build web applications, mobile apps for Android and iOS, and the cloud backends that power them. You get one team that owns the full journey, from the first whiteboard sketch to the version in your customers' hands.
Most failed software projects do not fail on code. They fail because the wrong thing was built, because scope kept drifting, or because nobody planned for life after launch. Our process exists to prevent exactly that. We validate what matters before writing code, ship in short visible sprints, and design every product so it can grow without a rewrite.
Whether you need a customer-facing app, an internal tool that replaces spreadsheets, or a minimum viable product (MVP) to show investors, we bring the same discipline: clear priorities, clean architecture and honest timelines.
What you gain with our product development services
- Launch faster with a focused MVP
- We help you separate the must-haves from the nice-to-haves so your first release reaches real users in weeks, not quarters, and you learn from real usage before investing further.
- One codebase for Android and iOS
- With Flutter and React Native we ship native-quality apps on both platforms from a single codebase, cutting build and maintenance costs without compromising on experience.
- Design that converts
- Every screen is designed around a user goal. Clear navigation, readable typography and fast interactions lift sign-ups, bookings and repeat use.
- Architecture that scales
- Modular frontends, well-defined APIs and cloud-native backends mean your product handles ten users or ten thousand with the same codebase.
- Total transparency
- Weekly demos, a shared task board and direct access to your developers. You always know what has shipped, what is next and why.
- You own everything
- Source code, designs, cloud accounts and documentation are handed over in full. No lock-in and no surprises.
What’s included
Every engagement is scoped to your goals. Typical deliverables include:
- Product discovery workshop and feature roadmap
- Wireframes, clickable prototype and UI design system
- Responsive web application (React or Next.js)
- Android and iOS apps (Flutter or React Native)
- Secure REST or GraphQL backend with admin dashboard
- Authentication, payments, notifications and analytics
- Automated testing, app-store submission and launch support
- Technical documentation and a knowledge-transfer session
How we deliver
Discover
A focused workshop to map your users, goals, competitors and constraints. You leave with a prioritised feature list and a realistic estimate.
Design
Wireframes become a clickable prototype you can test with real users. Once approved, we produce a consistent UI system for every screen.
Build
Two-week sprints with a working demo at the end of each. You see progress continuously and can adjust priorities as you learn.
Launch
Load testing, security checks, app-store submission and production deployment, followed by close monitoring during the first weeks live.
Grow
We analyse usage data with you and plan the next releases, adding features that move your key metrics.
Technologies we use
- React
- Next.js
- TypeScript
- Flutter
- Node.js
- Spring Boot
- PostgreSQL
- MongoDB
- Firebase
- AWS
Related work
SaaS PlatformReactFirebaseFlutter
KingAid
All-in-one business platform for HRM, payroll, expenses, inventory and analytics.
Brings staff, spending and stock into one dashboard on web and Android.
Explore KingAidProduct Development: frequently asked questions
How much does it cost to build a web or mobile app?
A focused MVP typically starts in the low lakhs, while larger platforms cost more depending on features, integrations and platforms. After a short discovery call we give you a fixed-scope estimate with a clear breakdown, so there are no hidden costs.
How long does app development take?
Most MVPs launch in 6 to 12 weeks. Simple business websites take 10 to 15 working days. We agree milestones up front and demo progress every two weeks.
Should I build a native app or a cross-platform app?
For most businesses, a cross-platform app built with Flutter or React Native delivers native-quality performance at a lower cost. We recommend fully native development only when your product depends on device features that cross-platform tools cannot support well.
Will I own the source code?
Yes. You receive full ownership of the source code, designs and documentation once the project is complete, along with admin access to all cloud and app-store accounts.
Do you help after the app is launched?
Yes. Every project includes a post-launch support window, and we offer ongoing maintenance plans covering updates, monitoring, security patches and new features.
Further reading
Mobile Apps
Mobile App Development: Flutter vs React Native in 2026
A comprehensive comparison of Flutter and React Native for cross-platform mobile app development in 2026, helping you choose the right framework.
2 min read
Web Development
Building Scalable Web Applications with React and Node.js
A deep dive into building high-performance, scalable web applications using React for the frontend and Node.js for the backend.
2 min read