Exploration,
not a guarantee.
Updated 14 October 2026. By using Zextha, you agree to use it lawfully and verify important decisions independently.
Educational guidance
Zextha maps ideas and evidence to support learning and planning. It does not build your company or research program, guarantee correctness or profitability, or provide medical, legal, financial, security, regulatory, or other professional advice. High-risk work requires qualified professionals and appropriate institutions.
Free exploration
Mind maps, Books, Documents, About, sharing, and offline map export may be used without a subscription. Anonymous visitors receive one map start per rolling day; signed-in visitors receive two. Fair-use limits protect availability and may evolve with capacity.
Zextha Monthly and existing purchases
New paid access is ₹399 per month, automatically renewed through Razorpay until cancelled, for up to 12 monthly payments over one year per authorization. Payments stop after the twelfth payment; continuing afterward requires a new subscription authorization. It includes up to four completed maps per rolling 24 hours, with or without Grok review, and 14 generated nodes per map. Grok review does not consume a separate credit for active subscribers. Unused daily allowance does not roll over. Choose Grok before starting a new map; existing maps cannot be upgraded afterward. Cancel renewal from the subscription panel; access continues until the end of the paid billing period. A failed or unconfirmed renewal does not grant a new paid period. Subscription access is verified server-side with Razorpay. Existing one-time buyers retain their purchased benefits and non-expiring credit balances. They are not enrolled in recurring billing. Legacy Grok maps still use one purchased credit; a terminal generation failure restores that reserved credit exactly once.
Shared maps
Sharing Zextha and sharing a generated map are separate choices. A map-specific link is an unlisted, read-only snapshot available to anyone who receives it. It expires after seven days and may be revoked sooner by its creator. Do not share a map containing confidential or personal information.
Evidence and current information
Deep Compile prefers primary sources and labels evidence modes. Live retrieval can be unavailable or incomplete. Library-mode output is not current web evidence. You must inspect sources, dates, uncertainty, and applicable local requirements before acting.
Acceptable use
Do not use Zextha to harm people, evade law or safety controls, obtain unauthorized access, process data without authority, create dangerous biological or physical procedures, or misrepresent generated material as verified professional work. Access may be limited to protect users, providers, or the service.
Availability and changes
Providers, limits, models, and features may change as reliability, cost, law, and safety evolve. Zextha will not represent a failed or unavailable operation as successful. Where law requires a specific remedy, applicable law controls.