Mobile App Development Company in Mumbai
We build Flutter and React Native apps for Mumbai startups and businesses — cross-platform, API-driven and ready for store release.
Mobile app development for Mumbai businesses
Mumbai teams move fast and expect releases on both stores at once. We build cross-platform apps with a shared codebase, clean API integration to your existing backend, and release pipelines that get builds onto the Play Store and App Store without maintaining two separate apps.
We work with startups and product teams across Andheri, Powai, BKC and Lower Parel on remote-first app projects.
We work with businesses across Mumbai — including Andheri, Powai, BKC, Lower Parel, Goregaon and Malad — through calls, WhatsApp and structured remote delivery.
KS Web Solutions is serving businesses in Mumbai.
Why businesses in Mumbai choose a custom build
- One codebase covering Android and iOS
- New features released to both stores together
- One team and one skill set to work with
- Shared UI and business logic — fixes land once
What We Build
Mobile apps scoped to your users and workflows — from first screen to store release.
Cross-Platform Apps
Flutter and React Native apps that ship to Android and iOS from a single codebase.
Flutter Development
Fast, consistent interfaces built with Flutter's widget system and Dart.
React Native Development
Mobile apps in React when your team already lives in the React ecosystem.
UI/UX for Mobile
Interfaces designed for thumbs, small screens and the platforms' own conventions.
API & Backend Integration
Apps connected to your existing APIs, database or Firebase through a clean data layer.
Play Store & App Store Releases
Build signing, listings and submission handled for both stores.
Push Notifications & Analytics
Re-engagement through notifications, with usage tracked so you can improve the app.
App Maintenance & Support
OS updates, crash fixes and feature releases long after launch.
Native Apps vs Cross-Platform Development
Where maintaining two native apps adds cost — and what Flutter or React Native gives you.
Separate native apps
- Two codebases to build, test and maintain
- Features shipped to one platform before the other
- Two development skill sets to hire and pay for
- Bug fixes and releases duplicated across both apps
Cross-platform (Flutter / React Native)
- One codebase covering Android and iOS
- New features released to both stores together
- One team and one skill set to work with
- Shared UI and business logic — fixes land once
Technology We Build With
How We Build Your Solution
Discover
Understand your business, users and requirements.
Plan
Define features, architecture and development roadmap.
Design
Create the interface and user experience.
Develop
Build, integrate and test the product.
Launch & Support
Deploy, monitor and continuously improve.
Apps & Platforms We've Built
A selection of products designed and built by KS Web Solutions.

ClearBook
Shared ledger SaaS platform.

Morix
Digital signage SaaS platform.
Frequently Asked Questions
Flutter or React Native — which do you use?
Both. We choose based on your case: Flutter when we want maximum UI consistency and performance from a single codebase, React Native when your web stack is already React and you want code shared with it. We recommend one during scoping rather than leaving the choice open.
Is one app good enough for Android and iOS?
For most business apps, yes. A cross-platform app is a single product built once and released to both stores, so you avoid paying for two separate native builds while still offering the app to every customer.
Do you publish the app to the Play Store and App Store?
Yes. We handle build signing, store listings and the submission process for both stores, and guide you through any developer account setup that is needed in your name.
Can the app connect to our existing backend or website?
Yes. We integrate apps with your existing APIs, database or admin system so the mobile app reads and writes the same data your team already works with.
How long does a mobile app project take?
It depends on scope — screens, integrations and platform coverage. You receive a milestone plan with your proposal after the discovery conversation.
Do you work with businesses outside your city?
Yes. We work with businesses across India through calls, WhatsApp and email. Location is not a barrier to a good working relationship.
More locations for mobile app development
Have a Project in Mind?
Tell us what you're trying to build. We'll help you figure out the right technology, scope and development approach.