AI tools · Category
Research & search
Answers with sources and assistants that search your own documents.
Tools in this category
Gemini Notebook
Google’s research assistant (formerly NotebookLM) that answers only from your own documents – with citations.
Research & searchPerplexity
Perplexity AI
A search engine that answers in full sentences and backs every statement with numbered, clickable sources.
Research & searchIndependent and commission-free: vona is not affiliated with the vendors. We check prices and features regularly; the vendors’ information remains authoritative.
What to look for when choosing
Good research tools show the source for every statement so you can check it. Distinguish between tools that search the open web and those that only analyse your own documents. For internal material, a business account, the storage location and whether content is used for training all matter.