GST maths & invoices, 100% offline.
PocketGST is an offline GST calculator and invoice app for Indian shops, freelancers and traders — instant CGST/SGST splits and professional invoices with no signup and no internet. We designed, built and ship it.
GST is daily maths for millions of small businesses.
Kirana shops, freelancers and traders across India do GST calculations and invoices every day — but most tools demand a signup, a subscription and a steady internet connection. PocketGST set out to make GST maths and invoicing instant, offline and free to start. Our job: design and build it as a fast, private mobile app.
From calculation to invoice in 30 seconds
Instant CGST / SGST split as you type.
Enter an amount, pick a GST rate, and PocketGST splits CGST and SGST instantly for intra-state supplies — no formulas, no errors, updated live as you type.
- ✓ Live CGST / SGST / IGST split
- ✓ All standard GST slabs
- ✓ Works fully offline
Professional GST invoices, shared on WhatsApp.
Generate clean, GST-ready invoices with HSN codes on line items and professional templates, then share a PDF straight to WhatsApp — no cloud lock-in.
- ✓ Multi-item bills with HSN
- ✓ Professional PDF templates
- ✓ One-tap WhatsApp sharing
No signup, no cloud, no internet needed.
Everything runs on-device — DPDP-aligned and privacy-first, in 12 Indian languages — so billing at the counter never waits on a network or an account.
- ✓ 100% offline, on-device data
- ✓ DPDP-aligned, no cloud upload
- ✓ 12 languages incl. Hindi & Tamil
Built for Indian shops, freelancers & traders
Retail & kirana
Fast billing at the counter with CGST/SGST split and WhatsApp PDF sharing.
Services & freelancers
Quotes, GST invoices and professional templates without cloud lock-in.
Wholesale & trade
Multi-item bills, HSN on lines, and GSTR helpers when filing season hits.
Three steps to GST
Download
Get PocketGST from the Play Store and open it — no account, no permissions drama.
Calculate
Enter an amount, pick a GST rate. Instant CGST/SGST split for intra-state supplies.
Save & share
Turn it into a GST invoice and share the PDF on WhatsApp in seconds.
Offline-first, privacy-first, built for Bharat
PocketGST is engineered to work with zero connectivity — the GST logic, invoicing and storage all run on-device, so it stays fast and private even at a counter with no signal, in the user's own language.
Offline-first Android app
GST calculation, invoicing and data all run on-device — the core works with no internet at all.
Privacy by design
DPDP-aligned with no cloud upload and no signup — data stays on the user's phone.
Built-in GST rules
Standard slabs and CGST/SGST/IGST logic encoded so users get correct maths without formulas.
Multilingual UX
12 Indian languages including Hindi and Tamil, for real accessibility across the country.
Invoicing & sharing
Professional PDF templates with HSN on line items and one-tap WhatsApp sharing.
Freemium model
15 free invoices a month with a Pro tier from ₹999/year — accessible to the smallest business.
Want a mobile product like PocketGST?
We designed, built and ship PocketGST ourselves — offline-first, multilingual and privacy-first. That's the same mobile and product engineering we bring to client work. Tell us what you want to launch.