Manual ledger calculations
Customer credit, received payments, balances, and due dates depended on handwritten registers and repeated calculations.
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Live operations workspace
Retail
Vyapaar Khata
- 100% offline operation
- Zero backend servers
- Secure full-data backup and restore
- Client
- Rohit Jain
- Project
- Vyapaar Khata
- Platform
- Android Application
A fully offline digital ledger and staff management app for customer credit, payments, expenses, payroll, reminders, PDF reports, and secure local backup.
Custom SoftwareMobile Application
The challenge
The operation had grown beyond disconnected tools.
Small business owners were maintaining customer credit, received payments, daily sales, expenses, and staff salary in notebooks or scattered records. Manual calculations made pending balances difficult to track, records hard to search, and reliable reports or recovery after data loss nearly impossible without a dedicated offline system.
Scattered staff records
Salary, attendance, overtime, advances, bonuses, deductions, and expense recovery lacked one connected workflow.
No dependable recovery
Searchable history, reports, secure access, backup folders, and safe restore controls were not available.
Design principle
One reliable operational record before more automation.
Our contribution
A focused system, delivered around the real workflow.
VedaTech designed and developed a fully offline Flutter application for Android. It combines multiple khata books, customer ledgers, staff payroll, attendance, expenses, reminders, PDF reporting, PIN and biometric security, master-key activation, local image storage, and rollback-protected backup and restore without any backend or internet dependency.
FlutterDartHiveFlutter Secure StorageKotlin Method ChannelsAndroid Storage Access FrameworkLocal AuthenticationCustom PDF Generation
Customer ledger
Customer creation, contact import, search, sorting, running balances, You Gave and You Got entries, notes, dates, due dates, and bill images.
Books and business tracking
Multiple khata books with daily sales, standalone expenses, dashboard insights, charts, filters, and balance-based sorting.
Staff and payroll
Staff profiles, daily, weekly, or monthly salary, attendance, half-days, overtime, advances, bonuses, deductions, and recoveries.
Reminders and statements
WhatsApp and SMS payment reminders with customer, book, business, staff, and payroll PDF statements.
Private offline security
Four-digit PIN, biometric unlock, one-time master-key activation, secure local storage, and no external server dependency.
Backup and restore
Full JSON backup to a user-selected persistent folder, attached-image preservation, timestamps, and safe rollback protection during restore.
Before and after
What changed in the working process.
A clear view of the operational transformation from fragmented legacy tracking into one connected working system.
100%OfflineNo internet required
0ServersDevice-only data
FullBackupRecords and images
01
Customer records
Customer ledger
BeforeNotebook entries
Credit, payments, and balances were handwritten and manually recalculated.
After deliverySearchable balances
Each customer has a searchable ledger with running balance, transaction history, due dates, notes, and attachments.
02
Payment follow-up
Payments & reminders
BeforeManual follow-up
Pending payments were difficult to identify and reminders had to be composed manually.
After deliveryShareable reminders
Outstanding balances are visible immediately and WhatsApp or SMS reminders can be shared from the ledger.
03
Staff management
Staff & payroll
BeforeScattered records
Salary, attendance, overtime, advances, and deductions were maintained in separate records.
After deliveryConnected payroll
Staff attendance and payroll events share one controlled profile with downloadable statements.
04
Business reporting
Reports & statements
BeforeManual summaries
Customer, book, expense, and payroll summaries required manual preparation.
After deliveryOffline PDF reports
Customer-wise, book-wise, business, staff, and payroll PDF reports are generated locally and shared directly.
05
Data protection
Security & recovery
BeforeNo restore path
Registers could be lost and there was no reliable restore or access-control process.
After deliveryProtected backup
PIN, biometrics, master activation, full-data backups, timestamps, and rollback protection secure local operations.
System transformation deployed: all five operational tracks unified in one engine.CENTRALIZED / ROLE-AWARE
Product gallery
A closer look at the system in operation.
Selected workflows from daily operations to administration.
Delivered product / 01
Secure offline access through a four-digit PIN or device biometrics.
1 of 5 product views
Project perspectives
What the project team says
“The product was designed around one non-negotiable requirement: the business must keep working without internet access. Ledger, payroll, reports, security, and recovery therefore operate together on the device.”
VJ
Er. Vedant JoshiFounder, VedaInfoTech
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100%offline operation
Project outcome
A system built to remain useful after launch.
The project was delivered with its source, operating context, and practical next steps visible, so future improvements can build on a clear foundation.
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