Business Calculator: Offline

EMI, GST, margin and split-bill math — offline, no login, no subscription. Business Calculator is for shop owners and small businesses that need the right number before the customer leaves. No cloud, no account, no monthly fee. Every calculation runs on your phone. WHAT YOU GET • Loan EMI — principal, rate and tenure to EMI, total interest and payable • GST add/remove — CGST + SGST or IGST split, with current and legacy slabs labelled for old invoices • Discount — sale price, discount percentage and amount saved • Margin & markup — cost, selling price, profit and conversions • Bill split — total, tip and headcount to per-person share • Copy or share any result • Works with no internet connection FORMULAS, NOT GUESSWORK EMI, margin, markup and GST calculations use clear formulas and consistent rounding. WORKS OFFLINE Maths run on your phone. There is no server and no account. YOUR DATA STAYS YOURS Amounts you enter stay on the device. We never receive them. HONEST ABOUT ADS One small banner at the bottom. Remove ads with a single one-time purchase — not a subscription. NOT A GOVERNMENT APP This is an independent tool. It is not affiliated with the Government of India, the GST Council, CBIC or GSTN. Questions or bugs: hello@madovertech.io