Custom software · Web apps · Websites · Integrations
Custom Software & Web Development for Businesses
We design and build business software, web applications and websites — from billing and inventory systems to client portals, dashboards and fast, SEO-ready websites — with deep understanding of accounting, GST and compliance built in.
- Billing, inventory & business software
- Web apps and client portals
- SEO-ready business websites
- Tally, Zoho, QuickBooks & Xero integrations
Services
What we build
Software that solves a specific business problem, delivered in clear phases with you owning the code.
Business software
Billing, invoicing, inventory, order management and GST-compliant document generation, as desktop or web applications.
Web applications & portals
Client portals, internal tools, approval workflows and data-entry systems with secure logins.
Websites
Fast, mobile-friendly, SEO and AI-search optimised websites with security headers and structured data.
API integrations
Connect Tally, Zoho Books, QuickBooks, Xero, payment gateways, marketplaces and Google Sheets so data flows without re-typing.
Dashboards & reporting
Management dashboards and scheduled reports for owners, CFOs and investors.
Maintenance & support
Hosting, monitoring, updates, security fixes and changes when your business or the law changes.
Software we work in
- React
- TypeScript
- Node.js
- Python
- SQL
- Vercel
- Supabase
- Windows desktop apps
- REST APIs
- Claude & GPT APIs
Why Finsarthi Global
Why build software with Finsarthi Global
Business-first
We start from the accounting, tax or operational problem, so the software fits how money and documents actually move.
Compliance built in
GST fields, invoice numbering, audit trails and data retention are designed in from day one.
You own the code
Source code, documentation and accounts are handed over to you — no lock-in.
One partner
The same firm can run your accounts, tax and compliance and build the tools around them.
How it works
Start working with us in four steps
Every engagement is run remotely, with a named manager and a single point of contact.
- 1
Discovery
We map users, screens, data and reports, and agree priorities for the first release.
- 2
Design & estimate
Clickable designs or screen outlines with a fixed price and timeline for each phase.
- 3
Build in phases
Working software every one to two weeks for you to test, with changes folded into the next phase.
- 4
Launch & support
Deployment, training, handover of code and documentation, and an optional support plan.
Secure by default
- HTTPS, security headers and least-privilege access on every project
- Passwords and keys kept out of code and stored in secure configuration
- Role-based logins and audit trails for business data
- Backups and recovery plan agreed before launch
- Source code in your own GitHub or repository
- Signed NDA and confidentiality undertakings
FAQs
Frequently asked questions
What kind of software does Finsarthi Global build?
Business software such as billing, invoicing and inventory systems, web applications and client portals, management dashboards, websites, and integrations between Tally, Zoho Books, QuickBooks, Xero, marketplaces and payment gateways.
Can you build GST-compliant billing software?
Yes. We build billing and invoicing software with GSTIN validation, HSN/SAC, place-of-supply tax calculation, invoice numbering series and exports for GST returns and Tally.
Do I own the source code?
Yes. Source code, documentation and all accounts are handed over to you at the end of each phase, so you can host or extend the software independently.
Can you build a website like this one?
Yes. We build fast, secure, mobile-friendly websites that are optimised for Google and AI search, with structured data, sitemaps and security headers.
How are software projects priced?
We quote a fixed price per phase after discovery, so you know the cost before work starts. Ongoing support and hosting can be added as a monthly plan.
Related services
Tell us about your assignment
Share your requirement and we will reply with scope, turnaround time and a fixed or hourly quote.