Ragobble

Ragobble lets you chat with your own study material. It is an AI chatbot and knowledge base tool for students, where you load class content and ask questions about it in plain conversation.

Sources can be URLs, YouTube videos or files, so lecture recordings and reading lists can sit under one roof.

It also works as an AI summarizer and research tool when you need to get through a lot of text quickly.

Pricing is freemium, and paid plans start at $9 a month.

The Standard plan gives you up to 3 knowledge bases, 25 GPT 4o messages per day, and URL and YouTube support, with a 7 day free trial.

The Advanced plan costs $20 a month and raises the limits to 10 knowledge bases and 100 GPT 4o messages per day, and it adds file support.

A custom business plan offers unlimited knowledge bases and access to GPT 4o, Claude and open source models.

The daily message caps are the main catch, so heavy users will want Advanced or a business plan.