the honest comparison
myBillBook is India's billing app for 1 crore+ businesses. ExtinctBook is a free, focused udhar khata. They solve different problems. Here's how to know which one — or if you need both.
the pricing reality
myBillBook's WhatsApp marketing and SMS marketing are available on Platinum and higher plans — not in the basic Silver (₹33/month) or standard paid tiers. If WhatsApp reminders are why you're looking at myBillBook, check the current plan pricing before you sign up.
The Silver plan is Android-only. The Diamond plan at ₹2,599/year adds iOS access, web access, and multi-device sync. If you run the counter from a phone and review accounts from a laptop, that's the plan you need.
myBillBook has impressive reporting depth for accounting. The daily hisab a shopkeeper needs at closing time — how much udhar was given today, how much was collected, what's today's profit — requires navigating the reports menu rather than a home-screen tap.
side by side
Last tested: June 2026, myBillBook Android app and published pricing page. myBillBook's pricing and plan inclusions change — verify current plans at mybillbook.in before deciding. We update this table quarterly.
| Feature | ExtinctBook | myBillBook |
|---|---|---|
| Free tier | ✓ Unlimited customers + entries, free forever | ✗ Silver from ₹33/mo (limited); full features ₹2,599/yr |
| WhatsApp reminders with payment link | ✓ Included free — embedded payment link | ✗ WhatsApp marketing on Platinum plan only |
| Counter-side udhar entry | ✓ 4 taps, built for this | ✗ Possible via party ledger but billing-oriented |
| Daily profit summary | ✓ One tap, home screen | ✗ Via 25+ reports — not one-tap |
| Offline-first sync | ✓ Full offline, auto sync | ✗ Partial offline |
| GST billing & e-invoicing | ✗ Not available | ✓ Full GST billing, e-way bills, e-invoicing |
| Inventory management | ✗ Not available | ✓ Full inventory with low-stock reminders |
| iOS + web access | ✗ Coming soon (waitlist open) | ✓ Available on Diamond plan (₹2,599/yr) |
| GSTR reports | ✗ Not available | ✓ 25+ reports including GSTR-1/3B |
| Setup time | ✓ Under 5 minutes | ✗ 15–30 minutes (billing setup, invoicing templates) |
| Counter staff learning curve | ✓ One shift to learn | ✗ Training needed for billing features |
where it matters
the cost difference
ExtinctBook's full khata — unlimited customers, entries, and WhatsApp reminders with payment links — is completely free. myBillBook's equivalent tier with web access and WhatsApp features costs ₹2,599/year. For a kirana shop that needs only udhar tracking and reminders, that's a real cost difference.
the reminder difference
ExtinctBook sends per-customer WhatsApp reminders with an embedded payment link, automatically. The customer taps and pays. myBillBook's WhatsApp feature is a marketing broadcast tool on a paid plan — not the same as automatic per-customer reminder with a payment link.
the focus difference
myBillBook is built for formal billing — invoices, GST compliance, 25+ reports. If you need all of that, it's excellent. If you need to quickly note that Sharma ji took ₹350 on credit and want an automated reminder to go out in a week, ExtinctBook is the sharper tool.
the verdict
choose ExtinctBook if...
choose myBillBook if...
free. focused. built for the counter.
Unlimited customers, unlimited entries, WhatsApp reminders with payment links. No subscription. Android live now. iOS waitlist open.
Also read: Best Khatabook alternative in 2026 →
before you decide
myBillBook has a Silver plan starting at ₹33/month for basic Android-only billing. The first plan with iOS and web access is Diamond at ₹2,599/year. WhatsApp marketing features are on Platinum and above — not included in basic plans. ExtinctBook's core khata (unlimited customers, unlimited entries, WhatsApp reminders with payment links) is completely free.
myBillBook offers WhatsApp marketing and SMS marketing on higher-tier paid plans. These are broadcast-style marketing tools, not automatic payment reminders tied to individual customer balances. ExtinctBook automatically sends WhatsApp reminders per customer with an embedded payment link they can tap to pay directly.
myBillBook is primarily a GST billing and invoicing app — it handles e-invoicing, e-way bills, 25+ business reports, inventory, and POS billing. It has a party ledger for tracking outstanding balances, but it is not designed for quick counter-side udhar entries. ExtinctBook is built purely for the khata use case.
Yes. If your shop needs both GST billing for business customers and quick udhar tracking for regular credit customers, running both tools is a practical approach. Use ExtinctBook at the counter for credit entries and reminders. Use myBillBook for formal invoicing and GST compliance.