ChatSathi
WhatsApp Business CRM
A WhatsApp CRM built on Meta's official Cloud API. Shared team inbox, broadcast campaigns, visual automation workflows, Kanban sales pipeline, and AI-powered reply suggestions.
PRODUCT-FIRST SOFTWARE DEVELOPMENT
We Build AI-Powered SaaS, Mobile Apps & Custom Software
We partner with startups and growing businesses to design, build, and ship products end to end — a product team, not a staffing agency.
30 minutes, no obligation
Scheduled in your timezone
You own the code and IP
MVPs from $15,000
ChatSathi
AI Health Insights
MilkBook
FlashNote
Products we designed, built, and shipped ourselves
Who We Help
Built for Teams at Every Stage
The right engagement depends on where you are. Here is how we typically work with each kind of team.
Startups
Launch an MVP fast enough to learn from real users, without building something you have to throw away in six months.
- MVP scoping and build
- Investor-ready prototypes
- Architecture that survives growth
Small & Mid-Size Business
Replace the spreadsheets and manual handoffs that are quietly costing your team hours every week, with AI-assisted automation.
- Workflow automation
- AI agents and chatbots
- Internal tools and dashboards
Established Companies
Modernize legacy systems incrementally, so the business keeps running while the platform underneath it gets replaced.
- Legacy modernization
- Cloud migration
- System integration
What We Do
Four Things We Do Exceptionally Well
We deliberately keep our focus narrow. These four practices are where our team has the deepest experience and where we ship the most.
AI Solutions
AI that does a specific job in your business, measured against a specific outcome — not a demo that impresses and then gets abandoned.
AI AgentsLLM IntegrationProcess AutomationAI ChatbotsOn-Device ML
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SaaS Development
Multi-tenant platforms with billing, roles, and analytics built in from the start — because retrofitting them later is what kills timelines.
MVP DevelopmentMulti-Tenant SaaSSubscription BillingProduct Scaling
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Mobile Apps
Native and cross-platform apps we take all the way through App Store and Play Store review — we have done it six times for our own products.
iOS / SwiftAndroid / KotlinFlutterReact NativeeCommerce AppsApp Store Release
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Custom Software
The systems that run your operation, shaped around how your business actually works rather than how an off-the-shelf tool assumes it does.
CRMERPeCommerce PlatformsCustomer PortalsInternal ToolsIntegrations
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Why iFusion
Why Teams Keep Working With Us
We are a small, senior team that builds and ships its own products. That shapes how we work on yours — fewer handoffs, more ownership, and decisions made by the people writing the code.
Book a Free Strategy CallJaha Rabari
Founder & Principal Engineer
15+ years delivering enterprise-level projects for MNCs and international clients — including leading the mobile engineering team on a US retail eCommerce app, from catalog and checkout through to order tracking. Your project runs through the founder directly, not an account manager.
More about iFusionFounder-Led Engineering
You talk to the people building your product, not an account manager relaying messages — led by a founder with 15+ years on enterprise and MNC projects.
Product Mindset
We push back on features that will not earn their keep. You are hiring judgment, not just hands.
Agile Delivery
Two-week sprints with a working demo at the end of each one. Progress you can see, not just report on.
AI-First Where It Fits
We ship real AI in production, including on-device inference. We will also tell you when AI is the wrong answer.
Transparent Communication
Shared Slack channel, open project board, fixed-price milestones. No surprise invoices, no black boxes.
You Own Everything
Source code, designs, and IP transfer to you in writing. We sign your NDA and MSA before discovery begins.
Products We've Built
We Ship Our Own Products
Six products designed, built, and released by our team — live on the App Store, Google Play, and the web. Every link below is a real, downloadable app.
AI Health Insights
HRV, Sleep & Recovery
On-device intelligence that turns Apple Watch and Apple Health data into readiness scores, sleep analysis, and HRV trends — Core ML inference in roughly 50ms, with zero cloud processing.
MilkBook
Dairy Billing & Invoicing
Replaces paper milk diaries for dairy vendors and farmers. Sales dashboards, bulk entries, one-click monthly invoices, and WhatsApp PDF bill delivery — in three languages.
FlashNote
Menubar Notes for Mac
A macOS menubar note app built natively in SwiftUI. Press a hotkey and capture an idea in under two seconds — full Markdown, instant search, automatic iCloud sync.
Team Office
Attendance & Leave Management
An employee attendance and leave platform built for a client: admin and employee logins, selfie punch-in for field staff, manager approvals, and exportable reports.
ExamSathi
Exam Prep & Quiz Platform
A competitive exam prep platform with daily quizzes, topic-based practice zones, challenge gameplay, and progress analytics tuned to specific exam patterns.
How We Work
From First Call to Live Product
The same seven stages on every project. You always know which one you are in and what comes next.
01
Discovery
Goals, users, and constraints — before any code.
02
Planning
Scope, architecture, fixed-price milestones.
03
UI/UX
Prototypes you can click and react to.
04
Development
Two-week sprints, demo at the end of each.
05
Testing
Functional, device, and security QA.
06
Launch
Deployment and app store submission.
07
Support
Warranty period, then optional retainer.
Case Studies
How We Approach Problems
Three projects, and the reasoning behind the technical decisions in each.
ChatSathi
SaaS · Sales & CRM
Challenge
Small sales teams were running their entire pipeline through personal WhatsApp accounts — no shared visibility, no history when someone left, no way to measure anything.
Solution
A multi-tenant platform on Meta's official WhatsApp Cloud API with a shared team inbox, a Kanban pipeline, visual automation workflows, and AI-drafted replies — plus a developer API for customers who wanted to integrate it themselves.
Stack
WhatsApp Cloud APIMulti-tenantAutomation EngineREST API
Outcome
Live as a commercial SaaS product serving businesses across real estate, e-commerce, education, and healthcare.
AI Health Insights
Health · On-Device AI
Challenge
Health data is the most sensitive category a consumer app can touch. Delivering real AI analysis normally means shipping that data to a server — which is exactly what privacy-conscious users refuse to accept.
Solution
We moved the entire model to the device. Core ML runs inference locally in roughly 50ms against Apple Watch and HealthKit data, producing readiness scores, sleep quality analysis, and HRV trends. No health data leaves the phone.
Stack
SwiftCore MLHealthKitwatchOS
Outcome
Live on the US App Store, running full model inference in ~50ms on-device — fast enough to feel instant — with zero health data leaving the phone, no backend to breach, and no per-user server cost.
MilkBook
Business · Billing SaaS
Challenge
Dairy vendors tracked hundreds of daily customer entries on paper, then spent the end of every month reconciling them by hand into invoices. Errors were routine and payments were slow.
Solution
A mobile-first billing app built around bulk daily entry, one-click monthly invoice generation, and WhatsApp PDF delivery straight to the customer — localized into three languages for users who are not comfortable in English.
Stack
iOSAndroidSubscription BillingPDF Generation
Outcome
Live on both the App Store and Google Play, replacing paper diaries for vendors, dairy farmers, and gaushala owners.
Our Stack
Technologies We Use to Build Scalable Products
We choose the right tool for each challenge — not the trendiest one.
React.js
Next.js
Vue.js
TypeScript
Tailwind CSS
WordPress
Three.js
Node.js
Python
Django
FastAPI
Laravel
PostgreSQL
MongoDB
MySQL
GraphQL
Swift / SwiftUI
Kotlin
Flutter
React Native
Expo
Firebase
OpenAI API
Claude API
LangChain
Core ML
TensorFlow
PyTorch
Hugging Face
Pinecone
AWS
Google Cloud
Azure
Docker
Kubernetes
CI/CD Pipelines
Terraform
Vercel
Industry Experience
Sectors We Know Well
Domain knowledge shortens discovery. These are the verticals where we already understand the workflows and the compliance constraints.
Healthcare
Patient portals, telemedicine platforms, and privacy-first health data applications.
Logistics
Fleet tracking, supply chain visibility, and warehouse management systems.
Education
Learning platforms, exam prep apps, and student engagement tools.
eCommerce & Retail
Storefronts, product catalogs, custom checkouts, order and delivery tracking, and inventory management — on web and in native shopping apps.
Construction
Project tracking, field reporting, and contractor management tools.
Manufacturing
Production dashboards, quality tracking, and ERP integration.
Financial Services
Payment flows, real-time dashboards, and compliance-ready systems.
Real Estate
Listing platforms, CRM integrations, and transaction management.
Agriculture & Dairy
Billing, collection tracking, and field operations — the sector behind our own MilkBook product.
FAQ
Questions Buyers Actually Ask
If your question is not here, ask it on the call — that is what it is for.
Do you work with US clients?
Yes. We work with clients across the United States, UK, UAE, and India.
Calls are scheduled in your timezone, all communication and documentation is
in English, and we contract in USD. Our team overlaps with US morning hours
and we adjust availability around your working day rather than ours.
How much does an MVP cost?
Most MVPs start around $15,000,
and typically land between $15,000 and $50,000. What moves the number: how many
user roles you need, whether it is web plus native mobile or just one, integrations
such as payments or WhatsApp, and whether AI features are involved. Larger
multi-tenant SaaS platforms run higher.
After a 30-minute call we send a written scope with a fixed-price quote and a milestone schedule, so you know the total before any work starts. No hourly surprises.
After a 30-minute call we send a written scope with a fixed-price quote and a milestone schedule, so you know the total before any work starts. No hourly surprises.
How long does development take?
A focused MVP typically runs 8 to 16 weeks from kickoff to launch. Larger
multi-tenant SaaS platforms and modernization projects run longer and are
delivered in phases, so you get working software early instead of waiting
for one large release at the end.
Who owns the code and intellectual property?
You do. On final payment for each milestone, all source code, designs, and
intellectual property transfer to you in writing. We hand over the
repository, infrastructure accounts, and documentation. We are happy to sign
your NDA and MSA before any discovery work begins.
What technologies do you use?
React, Next.js, and TypeScript on the front end; Node.js, Python, Django,
FastAPI, and Laravel on the back end; React Native, Flutter, Swift, and
Kotlin for mobile; OpenAI, Claude, LangChain, and Core ML for AI; and AWS,
Google Cloud, Azure, Docker, and Kubernetes for infrastructure. We pick per
project rather than forcing every client onto one stack.
Do you offer post-launch support?
Yes. Every project includes a warranty period after launch. Beyond that we
offer ongoing support and maintenance retainers covering monitoring,
security updates, app store releases, and continued feature development.
How do we communicate during the project?
You get a single point of contact, a shared Slack or Teams channel, access
to the project board, and a scheduled weekly demo of working software. You
can check progress whenever you want instead of waiting for a status report.
Next Step
Let's Build Your Next Product
Book a free 30-minute strategy call. We will talk through what you are trying to build, where the technical risk is, and what it would realistically take — whether or not you end up working with us.
Most MVPs start around $15,000. You get a fixed-price scope before any work begins.
No sales script, no obligation. Prefer email? info@ifusiontech.in
Get In Touch
Prefer to Write First?
Send us the shape of the problem and we will come back with an honest read on scope, timeline, and cost — usually within one business day.