Indian gyms lose 8-15% of members every renewal cycle to payment friction — failed cards, missed reminders, members who'd pay but can't reach the front desk. Kasratbook's billing engine fixes the cause, not the symptom.
UPI autopay mandates, Razorpay-powered cards, GST-ready invoices, and a renewal cadence that does the chasing for you.
UPI autopay gets you paid
73% of new UPI-paying members opt into recurring mandates. Renewal rate for those members: 96%.
Multi-method, all native
UPI, cards, netbanking, Razorpay subscription mandates, cash, bank transfer — all reconciled in one place.
GST done for you
Every invoice is GST-compliant. SGST + CGST calculated by state. HSN/SAC pre-filled.
Every capability you'd want.
- UPI autopay mandates (eNach + UPI 2.0)
- Card auto-debit via Razorpay subscriptions
- Tally integration for accounting
- Custom retry rules for failed payments
- Refunds, prorations, and credit notes
- Late-fee automation with member-friendly notices
- Trainer commission auto-calculation and payout
- GST-compliant invoices (B2B & B2C)
Common questions.
What payment gateway do you use?+
Razorpay is our default. We also support PayU, Cashfree, and Stripe (international). You can switch gateways without losing payment history.
Are there transaction fees?+
Kasratbook adds zero markup on top of your gateway fees. You pay Razorpay directly at their published rates.
Pairs well with
All featuresMember management
Profiles that update themselves, plans that fit how you actually charge, and family-and-corporate billing that doesn't break the moment you need it.
WhatsApp automation
Renewal reminders, birthday messages, class confirmations, custom blasts. All native, all on a verified business number.
Analytics & reports
Revenue, retention, attendance, trainer performance. Live dashboards, scheduled reports, and CSV exports for every view.
Start growing your gym today.
3 days free. Full onboarding done for you. No credit card. No lock-in.