We built DoubtPay AI, so this is not an outside review — but it is an honest one, including what it does not do. Read it before spending ₹9.
What ₹9 buys
15 answer credits. One credit = one successful AI answer: a step-by-step explanation with a labelled diagram where useful, or a hint, an attempt check, a revision plan, a practice set, or flashcards + notes + mind map for a topic. Failed requests refund the credit. No expiry schedule while the service runs; no auto-renewal.
Larger packs
| Pack | Price | Credits | Per answer |
|---|---|---|---|
| Quick doubt | ₹9 | 15 | ₹0.60 |
| Study pack | ₹49 | 100 | ₹0.49 |
| Homework pack | ₹99 | 250 | ₹0.40 |
What it does well
- Answers your exact question, typed or photographed, in 12 Indian languages.
- Steps are written the way marking schemes reward: formula, substitution, result, unit.
- Draws geometry figures, ray diagrams, circuits, biology figures inside the answer.
- ‘Check my attempt’ finds the step where you went wrong.
- Answers stay in your history for 90 days; ‘Listen’ reads them aloud.
- Optional animated voice tutor for any saved answer at ₹9 one-time.
Limitations (please read)
- AI can make mistakes — check calculations and facts against your textbook.
- Current affairs and very recent GK must be verified with a newspaper.
- It is a doubt solver, not a test series or a course.
- No MP4 download of animated lessons; voice depends on your device.
- Credits are added only after payment confirmation on the server — a screenshot or UTR does not unlock them.
Who should buy
- Students who ask 3–20 doubts a day and want them explained, not just answered.
- Hindi/regional medium students.
- Parents who want a fixed, small spend with no renewal.
Who should not
- Students who only need NCERT back-exercise answers (free banks exist).
- Anyone expecting live human tutoring.
Related: best doubt solving apps in India.
Stuck on a question? Ask it here and get a step-by-step answer in seconds — pay only per answer, no subscription. Ask your doubt now →
Stuck on a question question?
Type the exact question (or attach a photo), choose your class or exam and your language — Hindi, Hinglish, English or 9 more — and ask your doubt on DoubtPay AI. You get step-by-step working with a labelled diagram where it helps, and you can ask for a hint, an attempt check, practice questions or flashcards instead. No subscription: packs start at ₹9 for 15 answers, unused credits stay in your account.
Frequently asked questions
Is DoubtPay AI free to try?
You can try the animated tutor demo without logging in. Answers use credits, and the smallest pack is ₹9 for 15 answers. Failed answers refund the credit.
Which languages and exams does DoubtPay AI support?
Hindi, Hinglish, English, Bengali, Marathi, Tamil, Telugu, Gujarati, Kannada, Malayalam, Punjabi and Odia, for Class 6–12 (CBSE, ICSE, state boards), JEE, NEET, CUET, SSC, banking, railways, UPSC and state PSC.
Do credits expire or renew automatically?
There is no subscription and nothing renews automatically. Unused credits stay in your account while the service runs, and answers are kept in your history for 90 days.
Stuck on a question? Ask it here and get a step-by-step answer in seconds — pay only per answer, no subscription. Ask your doubt now →