Engineering services · Mobile apps
Mobile App Development Company in India
Mobile apps that feel native, wherever they run.
From first wireframe to app store listing, we build mobile experiences that are fast, intuitive, and built to be maintained — not just shipped once and forgotten.
What this service is
Who it's for, and what it fixes.
A mobile app earns its place on a phone when people use it often, need it on the move, or need something only a phone does well: the camera, location, notifications, or working with a poor connection. If none of that applies, a fast web app may serve you better, and we will say so.
When an app is the right answer, we design it for one-handed, interrupted use, build iOS and Android from one codebase where that serves you, and build the API and admin screens behind it with the same care. Store submission, crash reporting and updates are part of the plan from the start, not an afterthought at the end.
Businesses with field teams
Staff who capture photos, signatures, readings or visits away from a desk, sometimes without signal.
Services customers use often
Bookings, orders, loyalty or account management that customers return to every week.
Startups with a mobile-first product
An idea where the phone is the product, not a smaller copy of a website.
Companies with an app that needs rescue
An existing app with poor reviews, crashes, or a codebase nobody can update for the latest phones.
Problems it solves
- Field data is collected on paper and retyped later, with errors
- Customers drop off a mobile website for a task they repeat every week
- An existing app crashes, gets poor reviews or fails store review
- Two separate native apps cost twice as much to change as they should
- Notifications are either missing or so noisy that people turn them off
What's included
The deliverables.
What a typical engagement produces. Discovery decides which of these your first release needs.
App design for phones
Journeys designed for small screens, one hand and interruptions, following each platform's conventions so the app feels at home on iOS and Android.
iOS and Android apps
Usually one cross-platform codebase, with native modules where a feature needs them; fully native when performance or platform features require it.
API and back end
The server the app talks to: accounts, data, business rules and access checks, built so a web app or partner can use it later.
Admin screens
A web console for your team to manage users, content and orders without touching the database.
Notifications and offline use
Push notifications people actually want, and local storage with sync where the app must work without signal.
Store release
Store listings, screenshots, privacy declarations, review submission and the release process for updates, under your developer accounts.
How an engagement runs
From first call to running software.
Five phases, each ending in something you can see and approve. The detail, and what we need from you at each step, is on how we work with you.
- 01
Discovery 1–2 weeks
Who uses the app, how often and where, which phone features it needs, and whether a web app would do. We agree the first release and the platforms.
- 02
Design 2–3 weeks
Clickable prototypes on real phones, tested with a few users. Most expensive mistakes in apps are navigation mistakes, and they are cheap to fix here.
- 03
Build 6–10 weeks
Two-week cycles with test builds installed on your phones through the stores' testing channels, so you use the app as it grows.
- 04
Launch 1–2 weeks
Store listings and privacy declarations prepared, review submissions made, and a staged rollout so problems reach a few users first.
- 05
Support Ongoing, if you want it
Updates for new OS versions, crash fixes, features and store maintenance under a support arrangement, or a handover to your team.
Technology approach
Plain, proven, and yours to keep.
Mostly the stack behind the Varynt products, chosen per project. Read how we build.
- React Native
- TypeScript
- Swift
- Kotlin
- Spring Boot
- PostgreSQL
- Cross-platform apps
- React Native with TypeScript for most apps: one codebase for iOS and Android, shared skills with your web team, and native screens where it matters.
- Native when needed
- Swift for iOS and Kotlin for Android when an app depends on heavy graphics, background processing or the newest platform features.
- Back end
- Java with Spring Boot and PostgreSQL for the API, with standard sign-in over OIDC so the app can share accounts with your web products.
- Release and monitoring
- Automated builds for both stores, crash and error reporting, and a release checklist so every update ships the same way.
What you receive
Ownership, documentation, handover.
- The full source code in a repository you own, with its history, from the first week
- A written handover: architecture overview, how to run, build and release it, and the decisions taken and why
- Credentials, keys and accounts created in your name, never ours
- The automated test suites and the build pipeline, so anyone can keep shipping it
- Store listings, signing keys and developer accounts held in your name
- A release guide for shipping updates to both stores
Typical timelines
Ranges, not promises.
- Focused app
- 8–12 weeks
- A handful of core screens over an existing API or a small new back end.
- App with its own back end
- 12–20 weeks
- Accounts, data, admin screens, notifications and both stores.
- Rescue of an existing app
- From 4 weeks
- An audit first, then fixes in order of risk; a rebuild only if the audit shows it is cheaper.
Every project is quoted for its own scope after discovery; prices are not published.
Security and quality
The practices we use on our own products.
Varynt runs four products for paying customers. Client work gets the same habits. See trust and security.
- Test builds on real iOS and Android phones of different sizes and ages, not only simulators
- Sensitive data on the device kept in the platform's secure storage, never in plain files
- Access is checked on the server for every request; hiding a button is never the control
- Code review on every change, and automated tests that run before anything is released
- Test suites run in more than one order, so a test that only passes by luck is caught
- Before a release changes a database, it is backed up and the backup is restored and checked
- Secrets live outside the code, and dependencies are kept current
Do we need a mobile app or would a web app do?
If people use it occasionally, find it through search, or do not need the camera, location, notifications or offline use, a fast web app is often better and cheaper. If they use it weekly or more, on the move, or need phone features, an app is worth it. We decide this with you in discovery.
React Native or native apps?
React Native suits most business and consumer apps and halves the cost of changes across two platforms. Native suits apps that lean on heavy graphics, complex background work or brand-new platform features. Many apps use React Native with a few native modules.
Do you handle App Store and Play Store submission?
Yes: listings, screenshots, privacy declarations, review submissions and responses to reviewer questions. The developer accounts are in your name, so the apps stay yours.
Can the app work without an internet connection?
Yes, where the job needs it. Data is stored on the device and synced when the connection returns, with clear rules for what happens if the same record changed in two places.
Can you take over an app another team built?
Yes. We start with a short audit of the code, the build process and the store accounts, then recommend fixing, refactoring or rebuilding, with the reasons.
How are updates released after launch?
Through the same automated build and a staged rollout in each store, so a new version reaches a small share of users before everyone.
Related
Services and products that fit alongside.
Other services: Custom software · AI chatbots · AI agents · Workflow automation · LLM applications · Cloud and DevOps · Custom CRM
Get in touch
Tell us who will use the app, and where.
A short call about your users and what the app must do. We will tell you if a web app would serve you better, and scope the app if not.