Read this before you rely on us.

Free means free

Every tool, mock test, note and page across these sites is completely free. There is nothing to buy, nothing to unlock and nothing hidden behind a login. This is exactly what that means:

No Ads, Runs Locally on Your Device

Wondermayank's main tools display no advertisements. The vast majority of the ecosystem, including the period tracker, wallpaper gallery, and utility finders, runs almost entirely in your browser using localStorage, meaning your data stays on your own device and is never uploaded to a server unless a tool explicitly says otherwise.

No Warranty on Tool Accuracy

All finder tools, calculators, generators, and utilities (movie/anime/book finders, palette tools, image tools, the period tracker, wallpaper gallery, and similar) are provided "as is" without warranty of any kind. Results are for convenience and personal use only. Always verify important information (medical, financial, or otherwise) independently.

AI-Generated Content Notice

Some Wondermayank tools (e.g. AI-assisted routine generators, mind map or content helpers) use third-party AI models (such as Anthropic's Claude or Groq's Llama models) to generate suggestions. AI output can be inaccurate or incomplete. It is offered for informational and creative purposes only, and is not professional medical, legal, or financial advice.

No Ads, No Premium & External Links

The ThunderStudy / CommerceSehoga platforms are completely free: no advertisements, no paid products and no premium access. Mock tests, notes and CBT practice are open to every student.

External links to YouTube, Telegram, GitHub, and other services are provided for convenience only. We are not responsible for the content, availability, or terms of any externally linked site.

Exam & CBT Mock Test Disclaimer

All CBT (Computer-Based Test) mock tests, question banks, and practice simulations across CUET, JEE/NEET, SSC, Banking, CAT, CLAT, NDA and other sections are for practice purposes only. They are independently created and are not official material from NTA, SSC, IBPS, SBI, NCERT, CBSE, or any examination authority.

• Scores, analytics, and leaderboards are indicative only and do not guarantee real-exam performance.
• Syllabus coverage is best-effort; always cross-check against the latest official exam pattern.
• Result data is stored via localStorage and synced to Google Sheets for leaderboards. Treat this as supplementary, not a permanent academic record.

Third-Party Services in Use

These platforms integrate with Google Firebase (Auth & Firestore), Google Sheets / Apps Script, Vercel serverless functions, Groq API, and Anthropic's Claude API for AI-powered features (Thunder AI, Mind Map generator, Mock Test Maker). Each is governed by its own terms and privacy practices, which we do not control.

Editorial & Informational Content Only

Articles, guides, and blog posts published under Wondermayank / ThunderStudy blog properties are written for general informational and educational purposes. They may draw on AI-assisted drafting tools and should not be treated as professional, medical, legal, or financial advice.

Accuracy & Updates

We aim for accuracy at time of publishing, but exam patterns, syllabi, rules, and external facts referenced in blog content can change after a post goes live. Always verify against the latest official source before acting on anything you read.

Limitation of Liability

To the maximum extent permitted under applicable Indian law, Wondermayank, ThunderStudy, CommerceSehoga and their creator shall not be liable for any direct, indirect, incidental, or consequential damages arising from your use of or reliance on any content, tool, mock test result, or information across these platforms.

All platforms may experience downtime, data loss, or technical errors inherent to web-hosted, mostly client-side tools. We do not guarantee uninterrupted service. Please maintain your own backups of important study or personal data.

Copyright & Intellectual Property

All independently created content (notes, question banks, mock tests, tool designs, illustrations, and interface code) is the intellectual property of the creator unless otherwise stated. Unauthorised reproduction, redistribution, or commercial use is not permitted without written consent.

NCERT, CBSE, NTA, SBI, IBPS, SSC, and all other examination authority or brand names mentioned are the property of their respective owners, referenced for educational purposes only. This does not imply affiliation or endorsement.

Updates to This Disclaimer

This disclaimer may be updated periodically to reflect new platforms, new URLs, or changes in applicable law. Continued use of any site after an update constitutes acceptance of the revised terms.

Who operates this?

These sites are operated by wondermayank, an independent developer in India. wondermayank is the person responsible for the data described on this page. Privacy questions go to [email protected].

What happens to your data

Other things to know

• No ads, no selling. We never sell your data. Because there are no ads, no advertising cookies or ad-network trackers are used.
• Preferences. Settings such as dark or light mode are saved in your browser's localStorage so the site remembers them.
• AI features. When you use an AI tool (Thunder AI, Mind Map generator, Mock Test Maker), the text or file you submit is sent to a third-party AI provider such as Groq or Anthropic to produce the result. Avoid entering anything you want to keep private.
• Third parties. Firebase, Google Sheets and the AI providers follow their own privacy policies, which we do not control.

Your choices

• Local login: clear your browser's site data to remove everything stored on your device.
• Google login: email [email protected] from the address on your Google account and ask us to delete your account data.
• Leaderboard score: ask us by email and we will remove your entry from the leaderboard sheet.