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.

30-min call with a senior lead · Reply within 1 business day · NDA on request

150+

Projects shipped

130+

Brands and clients

100%

On-time delivery

20+

Countries served

01The practice

Native, hybrid or a web app. What the app has to do on the device decides which of these is right.

What we cover on Android · API 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

02Services

How we build Android for Kolkata businesses.

Native apps

Kotlin and Jetpack Compose against the current SDK. Worth it when the camera, barcode scanning or on-device storage is doing the real work.

Hybrid and cross-platform apps

One React Native or Flutter codebase for both stores, scoped and built at our Chowringhee Road office, with Kotlin written only where the hardware demands it.

Web apps and PWAs

An installable web app when a Play listing is not worth the overhead. Useful for the internal tools Kolkata clients ask us for most.

Typical timeline12–16 weeks
10–14 weeks
8–12 weeks
Next stepQuoted per project after a free consultation.Explore Android app development Explore hybrid app development Explore web app development
Native apps

Kotlin and Jetpack Compose against the current SDK. Worth it when the camera, barcode scanning or on-device storage is doing the real work.

Timeline
12–16 weeks
Explore Android app development
Hybrid and cross-platform apps

One React Native or Flutter codebase for both stores, scoped and built at our Chowringhee Road office, with Kotlin written only where the hardware demands it.

Timeline
10–14 weeks
Explore hybrid app development
Web apps and PWAs

An installable web app when a Play listing is not worth the overhead. Useful for the internal tools Kolkata clients ask us for most.

Timeline
8–12 weeks
Explore web app development

03Included

What we deliver.

01Built for mid-range hardware

We test on the sub-fifteen-thousand-rupee Android phones most of your Kolkata customers actually carry, not on a flagship.

02Small APK, fast cold start

App size and startup time are budgeted from day one, because both decide whether an install survives the first week.

03Offline-first data

Metro tunnels, lifts and patchy 4G are normal here. The app queues work and syncs when the signal comes back.

04Play Store handled end to end

Listing copy, screenshots, data-safety declarations, staged rollouts and the review replies nobody wants to write.

05Payments that work in India

Razorpay, UPI intent flows and Play Billing, wired and tested against real accounts before launch.

06You keep the signing keys

Source, keystore and Play Console ownership transfer to you. Nobody should be able to hold your app hostage.

Kotlin · Jetpack Compose · React Native · Flutter · Room · WorkManager · Firebase · Play Billing · Razorpay · UPI · Crashlytics · Play Console

04Why a Kolkata studio

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

Working with a Kolkata team.

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.

Om Tower, 7th Floor, 32 Chowringhee Road, Park StreetMon–Fri · 10:30–22:30 ISTGet directions

05Process

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.

01ScopeWeek 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 matrixUser and job mapRelease-one scopeSuccess metric agreed
1wkDuration
4Deliverables
02DesignWeek 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 prototypeMaterial component setOffline and error statesAPI contract
1wkDuration
4Deliverables
03BuildWeeks 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 buildsCode in your repoAutomated testsCrash reporting wired
10wkDuration
4Deliverables
04TestWeeks 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 passPerformance and battery runData-safety declarationBeta track with your team
3wkDuration
4Deliverables
05ReleaseOngoing

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 rolloutMonitoring and alertsMonthly reviewSupport SLA
OngoingDuration
4Deliverables

Stage 02 · Design

06Results

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

Recent client work.

Kampura storefront+55%

Kampura

Organic traffic

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.

3× Faster load

ShopifyMigration7 weeks

View case study Visit live site

Stride Ahead storefront+30%

Stride Ahead

Sales

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.

Custom build12 weeks

Visit live site

Oxenham storefront+25%

Oxenham

Organic traffic

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.

WordPress7 weeks

Visit live site

Gud Tonics storefront2 days

Gud Tonics

To indexed

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.

$10k+ Daily sales

ShopifyMigrationCRO7 weeks

View case study Visit live site

askIITians storefront2.5×

askIITians

Conversion rate

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.

+37% Sales

Custom build14 weeks

View case study Visit live site

Soreze Care storefront+38%

Soreze Care

Conversion

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.

<2s Page load

Shopify8 weeks

Visit live site

View all case studies · View all projects

Not sure where to start?

Tell us the number that is stuck. A senior lead replies within one business day with an honest view, free.

Book a free consultation

or WhatsApp +91 70034 16634

9.9/10 client score · 150+ projects · 100% on time

07Clients

130+ brands across retail, healthcare, education and manufacturing.

Brands we work with.

AttackleticsApplied Vision BaseballCocoon CareGRH KratomMindPandaDiego's ChocolateTotalSnaccKaromi CraftsKampuraKing K KratomGuD TonicsCocoaTown
“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.”
Laron A. Walker · Founder
Laron A. Walker · Founder★★★★★Legacy Line
+38%

sales

09FAQ

Android questions Kolkata clients ask us.

The ones that come up most in a first conversation.

Still unsure?

Ask us anything before committing to a call. Most questions get a real answer within a few hours.

hello@syscodes.in
+91 70034 16634
Book a 30-min 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.

10Start a project

Start your Kolkata Android project.

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

  1. Within 1 business dayWe read it properly and reply with real questions, not a templated brochure.
  2. A 30-minute scoping callFree, no obligation. We tell you honestly if we are the wrong fit.
  3. A written proposalScope, timeline, deliverables and the success metric, all on one page.

You'll hear back from a senior lead, never a bot.

    What do you need?

    NDA on request · Details never shared

    Question about your project? Tell us in 30 seconds and a senior lead replies.