Doubtnut

Doubtnut is an Indian educational app started by Tanushree Nagori and Aditya Shankar. Doubtnut is available as an Android application on Play Store or by accessing its official website.

On December 4, 2023, Allen Career Institute acquired Doubtnut for US$10 million.

Operation
The platform uses image recognition technologies to provide answers and explanation of mathematical and science questions of highschool to college level. To find the solution to a question, one has to upload an image depicting the question. 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. If it finds a match, then the result is provided to the user otherwise it asks the user to post their question publicly for tutors available on the platform to provide a video explaining their query.

Funding
In 2019, Omidyar Network and WaterBridge invested about $470,000. 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.

In 2022, the company secured 224 crore in Series B funding, with SIG and Lupa Systems leading the investment. Existing investors, including Sequoia Capital India, Omidyar Network India, and Waterbridge Ventures, also participated in the round.

On December 4, 2023, Allen Career Institute acquired Doubtnut for US$10 million.