Home/Kolkata/Android App Development
Android apps built in Kolkata

Android app development company in Kolkata.

We build Android apps from our Chowringhee Road office — Kotlin where it needs to be native, cross-platform where it does not — tested on the phones your customers actually own.

150+Projects shipped
95%Client retention
20+Countries served
What we cover on AndroidAPI 24+
Kotlin or cross-platform, your callBoth in house
Tested on real mid-range handsetsNot just emulators
Works on patchy 4G and offlineOffline-first
Play Store listing and releasesWe handle it
Signing keys and source are yoursFull ownership
The same senior engineers, start to finish0 swaps
01

How we build Android for Kolkata businesses.

Four routes to an Android app. Which one you need depends on what the app has to do, not on what we prefer.

Built for mid-range hardwareWe test on the sub-fifteen-thousand-rupee Android phones most of your Kolkata customers actually carry, not on a flagship.
Small APK, fast cold startApp size and startup time are budgeted from day one, because both decide whether an install survives the first week.
Offline-first dataMetro tunnels, lifts and patchy 4G are normal here. The app queues work and syncs when the signal comes back.
Play Store handled end to endListing copy, screenshots, data-safety declarations, staged rollouts and the review replies nobody wants to write.
Payments that work in IndiaRazorpay, UPI intent flows and Play Billing, wired and tested against real accounts before launch.
You keep the signing keysSource, keystore and Play Console ownership transfer to you. Nobody should be able to hold your app hostage.
KotlinJetpack ComposeReact NativeFlutterRoomWorkManagerFirebasePlay BillingRazorpayUPICrashlyticsPlay Console
02

Working with a Kolkata team.

Same city, same time zone, and a senior engineer you can actually meet.

01

User testing in your market

We test with people in Kolkata who match your customers, not a remote panel abroad.

02

Meet us on Chowringhee Road

Our office is at Om Tower, ten minutes from Park Street metro. Walk in and see the bench.

03

Your hours, not a night shift

We work 10:30 to 22:30 IST, so a morning call in Kolkata is simply a morning call.

04

One senior lead throughout

The person who scopes your project builds it. No account manager relaying messages.

05

GST invoicing in rupees

A registered West Bengal company, GST compliant, so there is no overseas wire to arrange.

06

Bengali, Hindi or English

Workshops run in whichever language your team thinks fastest in, not only English.

03

How a Kolkata Android build runs.

Five stages, a scope fixed in writing, and a senior Android engineer you can sit with on Chowringhee Road.

01

Scope

02

Design

03

Build

04

Test

05

Release

Week 1

We agree what the first release does not do.

A session on who opens this app, on what handset, and what one job it has to finish. Feature lists grow on their own; the useful work is cutting them.

Device and OS matrix
User and job map
Release-one scope
Success metric agreed
1wkDuration
4Deliverables
Week 2

Screens drawn to Material, not a desktop mock shrunk down.

Clickable flows at real Android densities, with thumb reach, the back gesture and notification behaviour decided before anyone writes code.

Clickable prototype
Material component set
Offline and error states
API contract
1wkDuration
4Deliverables
Weeks 3-12

A signed build on your phone every fortnight.

Two-week sprints, each ending with an internal-track release you can install and use. Code lands in your repository as it is written.

Fortnightly internal builds
Code in your repo
Automated tests
Crash reporting wired
10wkDuration
4Deliverables
Weeks 11-13

Real handsets, not just the emulator.

A device lab pass across the Android versions and screen sizes your users are actually on, plus the Play data-safety and permissions review before submission.

Device matrix pass
Performance and battery run
Data-safety declaration
Beta track with your team
3wkDuration
4Deliverables
Ongoing

Staged rollout, then whatever the crash log says.

We ship to a small percentage first and watch. After launch, monthly reviews on crashes, retention and the screens people abandon.

Staged Play rollout
Monitoring and alerts
Monthly review
Support SLA
OngoingDuration
4Deliverables
04

Recent client work.

A sample of what we have shipped for clients across product, web and commerce. The portfolio has the rest.

Kampura homepage on desktop and mobile

Kampura

Award-winning organic ceremonial cacao, grown and stone-ground in Guatemala with no middlemen. A static WordPress brochure became a store, without losing a single one of the informational pages the brand had built its authority on.

Organic traffic
+55%
Faster load
3×
ShopifyMigration7 weeks
Stride Ahead homepage on desktop and mobile

Stride Ahead

Psychometric career guidance for students in grades 8 to 12, built on real assessment science rather than a marksheet. A custom platform: thirty assessments, a database of 1,500 careers, mentor programmes and school deployments.

Sales
+30%
Custom build12 weeks
Oxenham homepage on desktop and mobile

Oxenham

Executive search and leadership consulting for Canadian organisations hiring at the top. Rebuilt to new brand guidelines with the emphasis on how a senior candidate reads a firm before they answer its call.

Organic traffic
+25%
WordPress7 weeks
Gud Tonics homepage on desktop and mobile

Gud Tonics

Alcohol-free kava and kratom tonics, positioned as the drink you have instead. Google would not show the site at all, not even for the brand name, because it was buried in duplicated AI-written content. We stripped it, rewrote it, and rebuilt on Shopify.

To indexed
2 days
Daily sales
$10k+
ShopifyMigrationCRO7 weeks
askIITians homepage on desktop and mobile

askIITians

Online IIT-JEE and NEET coaching taught by IITians, serving students across India and NRI families in the Gulf. Live classes, test series and doubt resolution at scale, on a platform built for term-time load.

Conversion rate
2.5×
Sales
+37%
Custom build14 weeks
Soreze Care homepage on desktop and mobile

Soreze Care

Silicone barrier gels that prevent bedsores, sold to families caring for elderly relatives. A category where nobody buys before they understand, so the store teaches first and sells second.

Conversion
+38%
Page load
<2s
Shopify8 weeks
05

Brands we work with.

Over a hundred brands across retail, healthcare, education and manufacturing.

GRH Kratom
Syscodes handled our migration from WooCommerce to Shopify exceptionally well, despite having a large store with many pages and products. They ensured we didn’t lose our search rankings during the migration and, in fact, helped us grow both organic traffic and sales after the launch. Excellent work from start to finish.
GRH KratomKemal Whyte · Founder
+40%organic traffic
Legacy Line
Great experience working with Syscodes on our CRO-focused website redesign. They understood our goals, improved the user flow, and delivered a better design. Communication was smooth, deadlines were met, and the whole process was very professional. Would definitely work with them again.
Legacy LineLaron A. Walker · Founder
+38%sales
Applied Vision Baseball
Syscodes did an excellent job redesigning our eCommerce website. The new site looks polished, modern, and much more aligned with our brand. Professional throughout the entire process, and we’ll definitely be working with them again.
Applied Vision BaseballMark Brooks · Founder
+46%conversion
MindPanda
Syscodes did a great job migrating our eCommerce store from WooCommerce to Shopify and improving the overall conversion experience. The migration was handled smoothly, the new Shopify store performs much better, and the project was completed successfully.
MindPandaRavi Jampana · Founder
7 figuresdirect revenue
07

Android questions Kolkata clients ask us.

The ones that come up most in a first conversation.

Still unsure?

Ask us directly. A senior lead answers, usually within one business day.

hello@syscodes.in+91 70034 16634Book a call
Do you build Android apps in Kolkata?

Yes. Android is built in house at our Chowringhee Road office in Kolkata — no part of it is passed to a third party. You can come in and meet the engineer writing your app.

Kotlin or React Native — which should we pick?

If the app leans hard on the camera, sensors, background sync or offline storage, native Kotlin is worth it. If Android and iOS need the same product on one budget, React Native usually wins. We recommend after scoping, not before.

Which Android versions and devices do you support?

API 24 and up by default, which covers effectively every phone still in use in India. We test on real mid-range handsets, not only the emulator, because that is what your customers are holding.

Do you handle the Play Store submission?

Yes — listing copy, screenshots, the data-safety declaration, staged rollout and the review process. The Play Console account stays in your name.

Can you take over an Android app someone else built?

Often, yes. We start with a paid audit of the code, the release setup and the crash data, then tell you honestly whether repairing or rebuilding costs less. Sometimes the answer is rebuild.

Who owns the code and the signing key?

You do, outright, including the keystore and the Play Console listing. Nothing is licensed back to you and you are not tied to a retainer to keep your own app.

How long does an Android app take?

An Android-first MVP is about eight weeks. A full product is usually twelve to sixteen. We fix the scope in writing before starting, so the date does not drift on us.

08

Start your Kolkata Android project.

Thirty minutes, free. Tell us what you are building and who will run it.

Free consultation 30 minutes, no obligation, senior lead on the call
You'll hear back from a senior lead, never a bot.

    Your details
    What do you need?
    eCommerce buildCRO & testingWebsite designApp / SaaSDesign & brandingSomething else
    NDA on request · Details never shared
    Question about your project? Tell us in 30 seconds and a senior lead replies.