# Book Keeper > GST/VAT billing, invoicing, and accounting software for small and > medium businesses, built by Just Apps Pvt. Ltd. Available on > Android, Windows, iOS, and Web. ## What Book Keeper does Book Keeper is billing and accounting software for small and medium businesses in India, the Gulf region, and Oceania. Core capabilities include GST/VAT-compliant invoicing, e-invoicing, e-way bill generation, inventory and warehouse management, barcode generation, GSTR-1/GSTR-3B reporting, multi-device sync, and financial reporting. The software is available in English, Arabic, Bengali, and Portuguese. ## Who it's for Retailers, traders, wholesalers, and small-to-medium business owners who need GST or VAT-compliant billing without hiring dedicated accounting staff. Businesses managing physical inventory alongside billing (via barcode tracking, warehouse management, and stock accounting) are a particular fit. ## Trial and plans Book Keeper offers a 14-day free trial with no signup or credit card required. For current plan tiers, pricing, and feature breakdowns by plan, see the Pricing page linked below — this file intentionally does not list prices, since they are subject to change and the Pricing page is the authoritative source. ## Core pages - [Homepage](https://bookkeeperapp.net/): Product overview, features, and free trial signup - [Book Keeper vs Vyapar, Tally, BUSY, Marg & myBillBook](https://bookkeeperapp.net/bookkeeper-vs-tally-vs-busy-vs-quickbooks): Feature-by-feature comparison against leading GST billing software - [FAQ](https://faq.bookkeeperapp.net): Common questions on GST billing, invoicing, and inventory management - [Pricing](https://bookkeeperapp.net/subscription-3): Compare different plans offered by Book Keeper as per your requirements. Pay for what you use. ## Optional - [App Features](https://bookkeeperapp.net/appfeatures): Full feature list ------------------------------------------------------------------------------------- # Book Keeper > GST/VAT billing, invoicing, and accounting software for small and medium businesses (MSMEs), > built by Just Apps Pvt. Ltd. > Available on Android, Windows, iOS, and Web. ## What Book Keeper does Book Keeper is a comprehensive billing and accounting software platform for small and medium businesses in India, the Gulf region, and Oceania. Core capabilities include GST/VAT-compliant invoicing, e-invoicing, e-way bill generation, inventory and warehouse management, barcode generation, GSTR-1/GSTR-3B tax reporting, multi-device sync, and financial reporting. Additionally, Book Keeper provides a suite of free financial and tax calculators to help business owners manage loans, investments, and GST calculations. The software is available in English, Arabic, Bengali, and Portuguese. ## Who it's for Retailers, traders, wholesalers, MSMEs, and small-to-medium business owners who need GST or VAT-compliant billing without hiring dedicated accounting staff. Businesses managing physical inventory alongside billing (via barcode tracking, warehouse management, and stock accounting) are a particular fit. ## Trial and plans Book Keeper offers a 14-day free trial with no signup or credit card required. For current plan tiers, pricing, and feature breakdowns by plan, see the Pricing page linked below — this file intentionally does not list prices, since they are subject to change and the Pricing page is the authoritative source. ## Core pages - [Homepage](https://bookkeeperapp.net/): Product overview, MSME accounting features, and free trial signup - [Book Keeper vs Vyapar, Tally, BUSY, Marg & myBillBook](https://bookkeeperapp.net/bookkeeper-vs-tally-vs-busy-vs-quickbooks): Feature-by-feature comparison against leading GST billing software - [FAQ](https://faq.bookkeeperapp.net): Common questions on GST billing, invoicing, and inventory management - [Pricing](https://bookkeeperapp.net/subscription-3): Compare different plans offered by Book Keeper as per your requirements. Pay for what you use. ## Free Business & Financial Calculators Book Keeper offers free, highly accurate calculators to help individuals and MSMEs estimate taxes, plan loan EMIs, and forecast investment maturity. Each tool includes exact accounting workflows and journal entries for Book Keeper. - [Business & PMMY Mudra Loan EMI Calculator](https://bookkeeperapp.net/business-loan-emi-calculator): Estimate MSME commercial loans and collateral-free Government Mudra Loans (Shishu, Kishore, Tarun) with amortization schedules. - [GST Calculator](https://bookkeeperapp.net/gst-calculator): Easily add or remove GST to find inclusive/exclusive base prices, with exact CGST, SGST, and IGST breakdowns for tax returns. - [PPF Calculator](https://bookkeeperapp.net/ppf-calculator): Calculate Public Provident Fund (PPF) maturity, EEE tax-free interest, and Section 80C tax deductions. - [Fixed Deposit (FD) Calculator](https://bookkeeperapp.net/fd-calculator): Estimate cumulative and regular payout FD maturity, compounding interest, and TDS thresholds. - [Recurring Deposit (RD) Calculator](https://bookkeeperapp.net/rd-calculator): Calculate quarterly compounding returns for monthly RD installments. - [Home Loan EMI Calculator](https://bookkeeperapp.net/home-loan-emi-calculator): Plan mortgage payments, estimate total interest payable, and learn how to track property assets. - [Car Loan EMI Calculator](https://bookkeeperapp.net/car-loan-emi-calculator): Estimate auto loan EMIs and compare fixed vs. floating interest rates. ## Optional - [App Features](https://bookkeeperapp.net/appfeatures): Full accounting and inventory feature list