The business has outgrown spreadsheets
Orders, customers and stock are tracked across several sheets that only one person fully understands. Every report means copying data around, and mistakes are found late.
Custom Software
Development Company
in Chennai
From ₹74,999Agreed modules and rolesExcludes GST
Airbil is a custom software development company in Chennai. We build CRMs, billing and inventory systems, admin dashboards, portals and SaaS products around the way your business actually works, for clients across India and overseas.
From ₹74,999
For a focused CRM or billing system · Excludes GST
When it is time for custom software
The work has changed. Your tools should too.
Slow pages, dated layouts and missed enquiries can get in the way of good business. Start by recognising what needs to change.
See what we buildOff-the-shelf software forces workarounds
The tool almost fits, but your pricing, approvals or GST rules do not. The team keeps a side spreadsheet to cover the gaps, and pays per user for software it half uses.
Information lives in too many systems
Sales sit in one app, billing in another, stock in a third. Nobody sees the full picture of a customer or an order without asking around.
Customers and staff keep asking for updates
Order status, invoices and documents are shared by phone and WhatsApp on request. A simple portal would answer those questions without anyone stopping work.
What we build
Software built around the way your business works.
We have delivered CRMs, admin panels and dashboards, client and staff portals, SaaS products and billing systems. Each one starts from the client’s real workflow, not a template.
Hover or choose a service 01 / 08
Different businesses.
Software shaped around your work.
Custom CRM and lead management
A CRM shaped around how your team actually sells: your stages, your fields, your follow-ups, with WhatsApp and email connected where it helps.
From ₹74,999A pipeline that follows your sales process.
Move the sample lead from a new enquiry to a qualified opportunity. The next action stays with the record.
Interactive sample. Your project’s rules are agreed separately.
Billing, GST invoicing and inventory
Quotations, GST invoices, stock, payments and customers in one system, built around your products and pricing rules rather than a generic template.
From ₹74,999Admin panels and dashboards
One place for your team to manage bookings, orders, staff, stock or memberships, with the numbers that matter on the first screen.
Client and staff portals
Secure logins where customers check orders, invoices and documents, or staff see their tasks, without calling or messaging your office.
SaaS products and web applications
Subscription software that serves many customers from one platform, or a web application that runs a core part of your business.
From ₹1,49,999Tally and Zoho integrations
Connect your new or existing software to Tally or Zoho, so invoices and records flow across without being typed twice.
From ₹9,999Internal tools
Small, focused tools that replace a messy spreadsheet or a manual routine, such as job tracking, approvals or price calculators.
AI features inside your software
Where it genuinely helps, add AI to read documents, sort requests or answer questions from your own data, built into the software rather than bolted on.
Software in real use
From quotation to paid invoice, in one system.
HMC Billing is a GST billing system we built for Hirani Marketing Combines. Quotations, invoices, stock, payments and customers live in one place, shaped around how the business already worked. It is the kind of custom software development we do: one connected system instead of several tools and a spreadsheet.
01 / 04
A quotation is created
The team builds a quotation from the customer and product records already in the system, instead of starting from a blank document.
Illustrative records. Based on the HMC Billing workflow.02 / 04
One click turns it into a GST invoice
When the customer agrees, the quotation becomes an invoice without retyping, so the details match exactly and nothing is missed.
Illustrative records. Based on the HMC Billing workflow.03 / 04
Stock is managed in the same place
Stock sits in the same system as quotations and invoices, so the team can check what is available without a separate register.
Illustrative records. Based on the HMC Billing workflow.04 / 04
Payments and customers stay tracked
Payments are recorded against invoices, outstanding amounts are visible, and each customer’s history sits in one place for the next conversation.
Illustrative records. Based on the HMC Billing workflow.The investment
Custom software development cost, published upfront.
These are starting prices for the most common builds. After a free consultation you get a written quote for your modules, roles and integrations, so you know the total before anything begins.
01Your next project
Custom CRM
Starting from₹74,999
A CRM built around your sales stages, fields and follow-ups.
What’s included
- Your pipeline stages and fields
- Customer and lead records
- Follow-up reminders
- Admin panel and user roles
02Your next project
Billing and inventory
Starting from₹74,999
Quotations, GST invoices, stock and payments in one system.
What’s included
- Quotation to GST invoice
- Stock management
- Payment tracking
- Customer records and history
03Your next project
SaaS or web application
Starting from₹1,49,999
A web application or subscription product built around your core workflow.
What’s included
- Product and workflow planning
- User accounts and roles
- Admin panel
- Tested and handed over
Prices exclude GST. Hosting, domains, third-party services such as WhatsApp or payment gateways, and ongoing maintenance are separate. Tally or Zoho integrations start from ₹9,999.
What changes the price
Your scope shapes the final quote.
01Number of modules
A focused CRM or billing system costs less than one that also covers stock, HR, projects and reporting together.
02User roles and permissions
Different views and permissions for owners, managers, staff and customers add design and testing.
03Integrations
Connecting Tally, Zoho, WhatsApp, payment gateways or existing databases adds work for each connection.
04Moving existing data
Importing clean records is quick. Old spreadsheets with duplicates and gaps need cleaning before they can move.
05Reports and dashboards
Standard summaries are simple. Custom reports, exports and analytics take more design and testing.
06Hosting and support model
A one-time build handed over to you is priced differently from a subscription where we host and maintain it.
From idea to launch
How we build your software.
- Phase 01
Understand the workflow
We sit with the people who do the work and map how orders, customers and data move today, including the exceptions that spreadsheets hide.
Map the real records and exceptions. - Phase 02
Agree the scope in writing
We agree the modules, user roles, integrations and ownership model, and you get a written quote before any work starts.
Modules, roles and ownership agreed. - Phase 03
Design the screens
You review the main screens and flows before development, so the software matches how your team actually works.
Review the screens before development. - Phase 04
Build and test with real data
We build the system, import your data and test it with real records and edge cases, including user roles and integrations.
Real records. Roles. Failure states. - Phase 05
Launch and support
The software goes live with access for your team. If a bug or crash appears after launch, we fix it; new features are quoted as you need them.
Team access and support, handed over.
Behind the screens
A system your team can use and grow.
The screens, business rules and connected records are designed together. Agree these foundations before comparing feature lists.
Roles that match the work
Define what an owner, manager, team member or customer can see and change. The screens and the underlying access rules must agree.
Records that stay connected
Model customers, quotations, invoices, stock and payments together. Plan imports and duplicate records before moving existing data.
Connections with a clear purpose
Map the agreed fields when connecting Tally, Zoho or other tools. Define failures and review steps alongside the successful path.
A focused first release
Start with the workflow that needs to work better. A standard product may already fit a standard process; new modules and changes are quoted when you need them.
A team you can work with
Custom software development in Chennai, for teams everywhere.
Meet our Chennai team in person or work with us across India and overseas over video calls, WhatsApp and email. The process, written quote and support remain the same.
Bug and crash fixes after launch
If a bug or crash appears after launch, we fix it. New features, changes and ongoing maintenance are quoted separately.
Ownership agreed before work starts
For one-time projects, the code and agreed accounts belong to you. For subscription plans, we host and maintain the software and retain the code. The model is agreed in writing.
Scope, data and running costs in writing
Modules, user roles, integrations and data imports belong in the quote. GST, hosting, domains and third-party services are separate. New requirements are scoped before they enter the build.
A little more clarity
Questions about custom software development.
Find a quick answer, or talk through your project with us.
12 questions, answered.Ask us directly01How much does custom software development cost in Chennai?
Our custom software starts from ₹74,999 for a CRM or a billing and inventory system, and from ₹1,49,999 for a SaaS product or web application, excluding GST. Tally or Zoho integrations start from ₹9,999. The final price depends on modules, user roles, integrations and data migration, and comes in a written quote after a free consultation.
02Should we build custom software or use an off-the-shelf tool?
Use an off-the-shelf tool if your process is standard and a popular product already fits it. Build custom software when your workflow, pricing or approvals set you apart, or when workarounds and per-user fees now cost more than building it properly. We will tell you honestly which applies.
03What kinds of custom software do you build?
We build CRMs and lead management systems, billing, GST invoicing and inventory systems, admin panels and dashboards, client and staff portals, internal tools, and SaaS products and web applications.
04Do you build custom CRMs in Chennai?
Yes. We build CRMs around your sales stages, fields and follow-ups, starting from ₹74,999, and can connect them to WhatsApp, email, Tally or Zoho where it helps your team.
05Can you build GST billing and inventory software?
Yes. We built HMC Billing, which turns quotations into GST invoices in one click and handles stock, payments and customers in one system. Each billing system is built around the client’s own products and pricing rules.
06Can our software connect to Tally or Zoho?
Yes. We connect new or existing software to Tally and Zoho so invoices and records flow across without retyping. Integrations start from ₹9,999.
07Who owns the software and the code?
For one-time projects, the code and agreed accounts belong to you. For subscription plans, where we host and maintain the software for a monthly fee, we keep the code and look after it. We agree which model applies, in writing, before we start.
08Can you add AI features to our software?
Yes, where it genuinely helps, such as reading documents, sorting requests or answering questions from your own data. We build AI into the software itself and tell you when plain rules would do the job better.
09How long does custom software development take?
It depends on the modules, roles, integrations and data involved, so the timeline comes with your written quote. A focused first version is the quickest way to start, with more features added once it is in use.
10What happens after the software goes live?
If a bug or crash appears after launch, we fix it. New features, changes and ongoing maintenance are available on request or on a monthly plan, quoted separately.
11Do you work with businesses outside Chennai?
Yes. Clients in Chennai can meet us in person, and we work with businesses across India and overseas over video calls, WhatsApp and email. The process, quote and support are the same wherever you are.
12How do we get started?
Book a free consultation. Tell us how the work happens today and what keeps going wrong, and we will suggest what to build first and send a written quote for that scope.
More ways we build for your business.
Your next chapter
What should your software do first?
Tell us how the work happens today and what keeps going wrong. In a free consultation we will suggest what to build first and send a written quote for that scope, with no obligation.
Designed, built and connected around you.