Perplexity
Ask a question, get a clear answer with links to where the information came from.
Free · Pro $20/mo
Category
This is the friendliest shelf in our directory: tutors and flashcards, research assistants, wellness coaches, trip planners, room redesigners and playful story companions. These tools are for learning things and enjoying life.
When picking one, check that the information comes from trustworthy sources, look at how personal data is treated, and try the free version first. Many are free or low-cost for individuals, with premium plans adding deeper features or unlimited use.
The one most people reach for is Perplexity.
Budget-wise, paid plans start anywhere from $4 to $29.99 a month — most land around $11.99. Good news: 12 of the 14 let you start for free.
14 tools
Ask a question, get a clear answer with links to where the information came from.
Free · Pro $20/mo
Google's free research notebook that answers questions only from the sources you give it.
Free
Chat with fictional characters, famous personas or your own creations, just for fun.
Free · c.ai+ $9.99/mo
Duolingo's premium tier adds AI conversations and explanations of where you went wrong.
Free · Max $29.99/mo
Make or borrow flashcards, then let AI turn your notes into tests and study guides.
Free · Plus $7.99/mo
Khan Academy's AI tutor nudges students toward answers with questions, not shortcuts.
$4/mo for learners
A research assistant that finds relevant papers and pulls key findings into a tidy table.
Free · Plus $12/mo
Ask a research question and see what the scientific literature actually says about it.
Free · Premium $11.99/mo
Chat about the trip you're dreaming of and watch an itinerary and map take shape.
Free
Type what you want to do next and an AI storyteller spins your adventure in any direction.
Free · from $9.99/mo
Snap a photo of your room and see it reimagined in a new style within moments.
From $29/mo
Answer a few questions about how you feel and get an overview of possible causes.
Free
A gentle chat companion for working through stress and low moods with guided exercises.
Free · Premium plans
Our shortlist: Perplexity (new, $20), NotebookLM (new, free) and Character.AI (new, $9.99).
Absolutely — 12 tools here have a free plan. We’d start with Perplexity, NotebookLM and Character.AI.
Most paid plans sit around $11.99/month. The cheapest we list starts at $4, the priciest at $29.99.
8 offer an API — handy if you want to plug them into your own product. Try Character.AI, Quizlet and Elicit.