FAQ
Questions, answered.
ThunderStudy AI is a free AI mock test maker that needs no account. The questions below cover cost, supported exams, test sources, daily and weekly limits, where your history is stored, downloads, offline use and privacy. It is built by Wondermayank, a solo student developer, who answers questions by email.
Is ThunderStudy AI really free?
Yes. There is one plan, Free Forever, and it includes every feature. There is no paid tier, no card and no hidden catch. Only a fair-use limit of 2 mock tests a day and 5 a week applies.
Do I need to create an account?
No. Open the app, choose a source and generate a test. There is no sign-up, and your history and daily limit are stored on your own device.
What can I generate a mock test from?
You can use a typed topic, voice input, pasted notes, a web article URL, a photo of your notes (read with in-browser OCR), a text-based PDF, or a YouTube video that has a transcript available.
Which exams does it cover?
CUET, JEE Main, NEET, SSC, Banking and UPSC are built in. Any other subject works too, because questions are generated from whatever topic or material you give it.
Can I choose the difficulty, time and number of questions?
Yes. Pick Easy, Medium or Hard; a 10, 15, 20 or 30 minute timer; and 5, 10, 15 or 20 questions. Formats are MCQ, True/False, Numerical Answer, or a Mixed set.
How many tests can I generate?
Up to 2 mock tests a day and 5 a week. The daily count resets at midnight and the weekly count at 12 AM on Sunday. The limit keeps the free AI engine available for every student.
Where is my test history stored?
In your own browser, on your device. Your most recent tests are saved there, so clearing your browser data will also clear your history.
Can I download my results?
Yes. After a test you can save it to Recent Tests and download it as an HTML file or a PDF scorecard, and you can review every question with its explanation.
Are the AI-generated questions always correct?
Not always. The questions are written by an AI, so double-check important facts against your textbook or official exam material, especially before an exam.
Does the site work offline?
Partly. Pages you have visited can open without a connection, and you will see an offline page when something is not available. Generating a new test needs an internet connection.
What happens to the PDF, image or text I upload?
Image text recognition and PDF text extraction run in your browser. The text that is extracted is then used to write your questions, so avoid uploading anything private or confidential.
Does voice input work on every browser?
Voice input uses your browser's Web Speech API, which works best in Chrome or Edge on desktop. If it is not supported, use the Topic, Paste or other tabs instead.
Who makes ThunderStudy AI?
Wondermayank, a solo student developer who has been building free educational tools since 2018. See the About page for more.
Does the site show ads?
No. This site does not show or sell ads.
How do I report a bug or request a feature?
Email contact@wondermayank.indevs.in or use the Contact button in the header, which opens the contact page.
Still have a question?
Write to contact@wondermayank.indevs.in and Wondermayank will get back to you.