Penseum

Penseum positions itself as a replacement for both generic chatbots and the pile of unread lecture slides sitting in your drive. You upload the material for a unit — a PDF, lecture notes, slides — and the platform builds study assets from that specific content rather than from general knowledge. From there the AI tutor can explain the topic step by step in real-time voice, draw diagrams and work through equations on a shared canvas, watch you attempt a problem, and point out exactly where your reasoning went wrong.

The design emphasis is on interactive teaching rather than one-shot answers: the tool keeps asking questions to confirm a concept has actually stuck, and it tracks which topics you have mastered versus which still need work, so subsequent sessions lean toward your weak spots. Subject coverage spans STEM through humanities and social sciences, and the platform accepts material in more than twenty languages, generating the study resources in the same language you uploaded.

The company reports more than 1.6 million learners and offers a free tier alongside a premium subscription priced at $29.99 per month according to its own FAQ. As with any AI-generated study content, the team itself recommends reviewing outputs for accuracy before relying on them for exams.