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Tushar Kalsara.

Independent developer · Mumbai · Working worldwide

I build the apps, toolsand automations yourbusiness runs on.

Mobile apps, web apps, custom software, CRMs and AI automation, designed, built and shipped by one accountable person. You talk to the developer, not an account manager.

Start a projectSee my work
  • ↳ You own 100% of the code
  • ↳ NDA on request
  • ↳ Reply within 24h
SwiftSwiftUINative iOSKotlinJetpack ComposeNative AndroidFlutterDartNext.jsReactTypeScriptNode.jsPHPLaravelTailwind CSS
PythonFastAPIPostgreSQLMySQLMongoDBFirebaseSupabaseRedisDockerAWSOpenAIClaudeLangChainn8nWhatsApp Business APIREST & GraphQL
[ 01 — Services ]

Everything from thefirst sketch to launch day.

One person accountable for design, development and delivery, whether it’s an app, a platform or an automation.
01

Mobile apps

Native iOS in Swift, native Android in Kotlin, or one Flutter codebase for both. Built to feel fast, work offline, and pass store review the first time.

Swift / SwiftUIKotlin / ComposeFlutter
02

Web apps & SaaS

Customer portals, dashboards and full SaaS products, from the first login screen to billing, roles and the admin panel.

Next.jsReactLaravel
03

Custom software

The internal tool your team keeps asking for: inventory, billing, documentation, approvals. Shaped around how your business actually works.

ERP-liteInternal toolsPortals
04

CRM systems

A custom CRM, or Zoho/HubSpot wired properly into your WhatsApp, website and phone calls so that no lead goes cold.

Custom CRMZohoHubSpot
05

AI & automation

WhatsApp assistants, document extraction and workflow automation. Practical AI that removes hours of repetitive work every week.

LLMsWhatsApp APIn8n
[ 02 — AI & automation ]

Automations that workwhile you sleep.

Most teams lose hours every day copying data between WhatsApp, email, spreadsheets and accounting software. These are the four automations I’m asked for most. Pick one and watch it run.

Workflow · WhatsApp lead follow-up

Live demo

01 · TriggerWhatsAppNew enquiry arrives
02 · AIQualify leadReads budget, area, urgency
03 · ActionZoho CRMCreates the lead
04 · ActionNotify salesAssigns & auto-replies
run.logwaiting for trigger
  1. Listening for the trigger…
Connects with

WhatsAppGmailGoogle SheetsZohoHubSpotTallyRazorpayShopifyMeta AdsGoogle CalendarSlackNotion+ any tool with an API

[ 03 — Selected work ]

Software that’s out there,doing its job.

Delivery apps, government platforms, retail systems and AI assistants: real products used every day.
View all work
[ 04 — How I work ]

A simple process,no surprises.

You always know what's being built, what it costs and when it will be ready.

  1. Step 01

    Discover

    A 30-minute call, then a written scope with a fixed quote. No surprises later.

  2. Step 02

    Design

    Clickable screens before any code, so you see it before you pay for it.

  3. Step 03

    Build

    Weekly demo videos and a live staging link from week one.

  4. Step 04

    Launch

    App store, domain, analytics and handover, all taken care of.

  5. Step 05

    Support

    30 days of free fixes, then an optional monthly care plan.

[ 05 — Kind words ]
“We'd tried two agencies before. Tushar was the first person who asked how our cashiers actually work before writing a line of code. Saturday billing queues are basically gone. ”
Hitesh ShahOperations Head, Retail chain · Ahmedabad
“Honestly I just wanted my agents to stop losing leads inside WhatsApp. What we got is the thing my whole team opens first every morning.”
Neha DeshpandeDirector, Real-estate brokerage · Pune
“Clear weekly updates, sensible pushback on scope, and he shipped on the date he gave us. That's rarer than it should be.”
Tom AldridgeFinance Manager, Logistics company · Manchester, UK
“Our practice managers used to spend Sunday nights on the roster. Now they check it on Monday morning and it's already sorted.”
Dr. Sarah LimManaging Partner, Medical clinic group · Melbourne, AU
“One wrong HS code used to cost us a week at the port. Seven months now without a single rejected document.”
Imran QureshiExport Manager, Textile exporter · Surat
“Parents message at midnight, on Sundays, during Diwali. The bot handles it politely and my counsellors only get the serious ones.”
Ritu AgarwalCentre Head, Coaching institute · Kota
“Tushar understood the distributor business quickly. The reps adopted the app in two weeks, which never happens here.”
Faisal RahmanSales Director, FMCG distributor · Dubai, UAE
[ 06 — Why work with me ]

The focus of a freelancer,the reliability of a studio.

You talk to the person writing the codeNo account managers or hand-offs.
Working with me
Typical agency
Freelance marketplace
Written scope and fixed quoteYou know the cost before we start.
Working with me
Typical agency
Freelance marketplace
Weekly demos you can clickProgress you can see, not status emails.
Working with me
Typical agency
Freelance marketplace
Design, build and launch in one placeMobile, web, backend and automation.
Working with me
Typical agency
Freelance marketplace
You own code and accounts from day oneNothing locked to me.
Working with me
Typical agency
Freelance marketplace
Still reachable after launchSupport plans, not disappearing acts.
Working with me
Typical agency
Freelance marketplace
[ 07 — FAQ ]

Questions,answered.

After a short call I send a written scope: what will be built, timeline, milestones and a fixed price. Every project is quoted on its requirements, so you only pay for what you need.

[ Next step ]

Have an idea?Let’s scope it together.

Tell me what you’re trying to build. You’ll get a written scope and a fixed quote within 48 hours.

Start a project WhatsApp me

I reply within 24 hours, Monday to Saturday.