Quizlet is the catalogue's most-visited AI study tool. The alternatives below each take a different angle on studying: flashcards, math, tutoring and source-grounded notes.
| Alternative | What it is best at | Free plan | Paid entry | Links |
|---|---|---|---|---|
| Knowt | Aimed at students who want free flashcards plus AI summaries of lectures and study help for AP, SAT and ACT prep. | Yes | Ultra - Monthly: $24.99/month, billed monthly (checked 2026-10-27) | Full record |
| Photomath | Built for working through math problems by scanning them and reading step-by-step explanations. | Yes | Photomath Plus - Annual: $69.99 USD billed annually (checked 2026-10-27) | Full record |
| Khanmigo | A good fit for learners, parents and teachers who want an AI tutor or teaching assistant from Khan Academy. | Yes | Learners and parents: $4/month or $44/year (checked 2026-10-27) | Full record |
| Gemini Notebook | Well suited to researching and studying from your own sources, with answers grounded in them and audio overviews (formerly NotebookLM). | Yes | Google AI Plus (includes Notebook access): US$4.99 (US view); billing cycle unconfirmed (checked 2026-10-30) | Full record |
Free flashcards with AI summarizers and study tools.
Aimed at students who want free flashcards plus AI summaries of lectures and study help for AP, SAT and ACT prep.
Math problem scanner with step-by-step explanations.
Built for working through math problems by scanning them and reading step-by-step explanations.
AI tutor and teaching assistant from Khan Academy.
A good fit for learners, parents and teachers who want an AI tutor or teaching assistant from Khan Academy.
Source-grounded AI research and study notebook (formerly NotebookLM).
Well suited to researching and studying from your own sources, with answers grounded in them and audio overviews (formerly NotebookLM).
How this list was built: alternatives are tools from the same area of the Ai Siftly catalogue, ordered by website-domain popularity (Tranco research list, 2026-10-26; method), then tools without a rank. Prices and details come from each vendor's own pages with the date checked shown. This is not a ranking or a recommendation.
Yes. Knowt's basic plan is free with unlimited file creation, Photomath and Khanmigo list free options, and Gemini Notebook is free with a Google account (checked dates shown above).
Khanmigo at $4/month for learners and parents (checked 2026-10-27). Quizlet Plus is $7.99/month monthly-billed.
Knowt: free flashcards with AI summarizers and study tools, aimed at the same student use case.
Every price shows the date it was checked on the vendor's own page. Confirm with the vendor before buying.