Khanmigo
Learning · Khan Academy
What it does: AI tutor and teaching assistant.
Who it's for: Students, parents and teachers, especially in K-12 education.
Free plan available Paid from $4/month Last verified Oct 15, 2026
What it does
Knowt creates flashcards, quizzes and summaries from your notes, PDFs, videos and lecture recordings.
Who it's for
Students.
Good points
- Free plan
- Big library of resources
Watch out for
- Ultra is pricey monthly
Good for
Pricing
Free plan: yes · Paid plans from $12.99/month billed annually (Ultra)
Free plan. Ultra $12.99/month billed annually ($149.99) or $24.99 monthly.
Last verified Oct 15, 2026 on the official pricing page. Prices can change; check before you buy.
Alternatives
Duolingo
Learning · Duolingo
What it does: Language learning app with AI features.
Who it's for: Anyone who wants to learn a language a few minutes a day.
Free plan available Paid from $9.99 (Super Duolingo, lowest US App Store in-app price; billing period not labelled) Pricing unconfirmed
Quizlet
Learning · Quizlet
What it does: Study tools with AI-generated flashcards.
Who it's for: Students of all ages and anyone studying for exams.
Free plan available Paid from $9.99 (Quizlet Plus, lowest US App Store in-app price; billing period not labelled) Pricing unconfirmed
Related guide
Getting started with AI chat assistants: prompting basics: How to choose a free AI assistant, write clear requests (prompts) that get useful answers, and avoid common beginner mistakes.