Doubtnut is an Indian educational app started by Tanushree Nagori and Aditya Shankar.

[3][4] The platform uses image recognition technologies to provide answers and explanation of mathematical and science questions of highschool to college level.

The app extracts text from the image and tries to match it in its database of questions which are pre-answered, having recorded video solutions.

[6] In January 2020, the company raised $15 million in Series A round of funding from Tencent Holdings, and existing investors Sequoia Capital and Omidyar Network India.

[7][8] In 2022, the company secured 224 crore in Series B funding, with SIG and Lupa Systems leading the investment.