Service
Website + Billing Web App + Mobile App
The full stack: public website, billing and operations web app, and a mobile app for staff or customers — one system, one login, one source of truth.
- Timeline
- 6–10 weeks
- Deliverables
- 10 items
- First milestone
- Week 1
Businesses that need to sell, bill and be used on a phone
This is the tier where the software becomes the business. A site that brings enquiries, a web app where your team bills and manages them, and a mobile app for the people who are not at a desk — drivers, technicians, field staff, or your customers. Built as one system so nothing has to be re-entered anywhere.
Typical stack
What you get
Not included
- App store developer fees
- Ongoing ad spend
- Content writing
Listed as plainly as the inclusions. Anything here can be scoped on top — quoted before it starts, never assumed.
How it works
One system, three surfaces
The same data model powers the website, the billing app and the mobile app. A price changed once is changed everywhere — which is the entire argument for building them together rather than buying three tools that need reconciling.
Billing that reconciles
GST-correct invoices, credit notes, part-payments, and a payment gateway wired with idempotency and retries so a provider outage cannot double-charge or lose a transaction.
Built for patchy networks
The mobile app works in a basement, a warehouse or a village with one bar. Actions queue locally and sync when signal returns — because 'requires internet' is not a feature your field staff can work around.
Handover assumes we might leave
Documented environment variables, a seed script, a deployment runbook and a recorded walkthrough. Code in your Git organisation, apps under your store accounts.
Delivery sequence
- 01Week 1
Discovery
Data model, role matrix, and the states a record moves through. Fixed scope and price out.
- 02Week 2–5
Web app core
Billing, records and admin built first — the mobile app consumes the same API.
- 03Week 5–8
Mobile app
Built against the live API, with offline queueing and push.
- 04Week 9–10
Harden & ship
Load testing, security pass, store submission, staff training, launch with monitoring.
Delivered with this service
Billing Platform + App
Multi-site billing and reconciliation where every shift closes with an attributed variance instead of a next-day paper argument.
- 3
- Sites live
- 30+
- Custom reports
Full Platform FAQ
Straight answers
Including where the honest answer is 'no' or 'buy something else'.
Is ₹20,000 realistic for a website, web app and mobile app?
It is the floor, and it buys a focused single-role app on a well-defined billing flow. Realistically most platforms at this scope land between ₹45,000 and ₹1,50,000 once you count the number of user roles, the integrations and the app store work. We publish ₹20,000 as the entry point because some genuinely fit it — and we tell you within the first call if yours does not.
Native or cross-platform for the app?
React Native, so Android and iOS share one codebase and your business logic is not written twice. If a feature genuinely needs native modules we write those natively and keep the rest shared.
Which payment gateway?
Razorpay by default for India — best UPI coverage and the cleanest reconciliation API. Cashfree, PhonePe and Stripe are all supported if you have a reason to prefer one.