Offline GST tool
GST Calculator: Offline
Calculate CGST, SGST or IGST, add or remove tax, and share the exact breakdown.
GSTIN Suite
Five small tools. One smoother workday.
Calculate GST, create an invoice PDF, check a GSTIN format, find an HSN/SAC rate or work out an EMI — all offline, with no account and no monthly fee.
Five focused tools for Android and iPhone · Your figures stay on your device.
From question to answer in seconds
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Type the figure
Enter a price, GSTIN, product, invoice line or business figure. Each app stays focused on the job in front of you.
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Get the answer
See a GST split, invoice total, GSTIN format result, code match or business calculation without waiting on a website.
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Send it on
Copy a breakdown, share an invoice PDF, or keep a recent lookup ready for the next customer.
The right tool for the job
A focused app for the moments that slow you down: quoting a price, checking a GSTIN format, finding a rate, sending an invoice or working through everyday business maths.
Offline invoicing
GST Invoice Maker
Create tax invoices with line items and share a PDF, without a cloud account.
Offline format check
GSTIN Check
Check GSTIN structure, state code, PAN and check digit offline. It does not confirm registration status.
Offline HSN & SAC lookup
HSN & GST Rate Finder
Search HSN and SAC codes with GST rates by code or product name, even offline.
Everyday business maths
Business Calculator: Offline
EMI, GST, discount, margin, markup and bill split tools for everyday decisions.
Why it fits real workdays
Built for people who calculate tax between customers, not for people who live in a spreadsheet all day.
Works when the signal doesn’t
Get the answer on a shop floor, in a basement, or on a train. No wait for a page to load.
Your figures stay on your phone
Amounts and invoices never leave the device. See exactly what ads collect in our privacy policy.
No pop-ups mid-quote
One small banner at the bottom. Nothing full-screen that steals the moment you’re selling.
Remove ads once, forever
A single purchase, not a subscription that renews when you’re not looking.
Rates match today’s rules
Always the slabs in force today, including 40%. Rates withdrawn in September 2025 stay available, clearly labelled, for older bills.
A person replies if something’s wrong
Email hello@madovertech.io. Bugs, refunds, or a number that looks off. We’ll answer.
See the answer on screen
Real screens from all five apps — small, focused tools that keep your numbers and history on your device.
Find the right tool for the job
Find your next tool on Google Play or the App Store.
Free with a small banner. Your business numbers are never the product.