Compliance & Billing Information
This page summarizes business, pricing, billing, support, and policy information for users and payment-gateway compliance review.
Last updated: February 26, 2026
Legal Name: Zalthar LLP
Brand Name: BigBrained
LLPIN: ACQ-8444
Address: 15 Arjun Marg, DLF Phase 1, Gurgaon, Haryana 122002, India
Support Email: kapur@znskr.com
BigBrained is a digital SaaS platform for flashcard learning and spaced repetition.
Delivery is electronic and immediate after signup/payment confirmation.
No physical goods are sold, packed, or shipped.
No shipping fees apply.
Free
INR 0
No charge
Up to 500 flashcards and 1 deck
Pro
INR 299
Monthly
Unlimited flashcards, unlimited decks, AI generation
Team
INR 799
Per user/month
Team collaboration and admin controls
Taxes are applied as per applicable law. Final payable amount is shown at checkout before payment confirmation.
Subscriptions can be cancelled from account settings or via support email.
Approved refunds are processed to the original payment method.
Full policy: Refund & Cancellation Policy
Payments are processed through a secure third-party payment gateway. We do not store raw card details on our servers.
For billing disputes or failed transactions, contact kapur@znskr.com with transaction ID and registered email.