Free Knowledge recall - 19 Free AI tools

Flashback

Turn course material into AI-powered study sessions.

Studying

Open

24,037 flashbackstudy.com

Shewag Ferk

Mar 27, 2026

@Flashback

okay so the timing on when it makes you review is kinda creepy accurate? like it'll pop up right when i'm about to forget something. been using it for bio and actually remembering lecture stuff past the exam for once.

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Released 1y ago

Free + from $9/mo

35,627

128

4.0

MyMemo

Transform personal data into actionable wisdom.

Knowledge

Open

You can now ask AI about your typed note. This issue has been fixed.

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Released 2y ago

Free + from $5.9/mo

3,598

93

2.8

Jungle

Generate flashcards from any web article to boost retention.

Flashcards

Open

1,259 www.wisdolia.com

Wisdolia is such an useful tool to make flashcards and review content in such an efficient and entertaining way, since you can make flashcards and type the answer and the IA will tell you in which way you got it wrong or right. It's not entirely free unfortunately, you get a limited amount of cards per month.

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🇺🇸 United States

Released 3y ago

Free + from $4/mo

13,724

73

5.0

Gizmo

AI quizzes to cement your learning

Quizzes

Open

I absolutely LOVE GIZMO

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🇬🇧 United Kingdom

Released 2y ago

100% Free

10,315

60

3.6

Pragma

Access company knowledge instantly, anywhere you work.

Knowledge bases

Open

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Released 3y ago

No pricing

4,374

60

2.7

Opal

AI-powered study tool for faster learning and better recall

Learning

Open

Great for small assignments and trying to parse through a large document. Got a subscription last month, pretty cheap which is a good benefit, totally worth the cost.

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Released 1y ago

Free + from $5/mo

3,150

58

4.0

Kognitium

Unlock knowledge with AI-powered information discovery.

Knowledge exploration

Open

Solid platform. Cites information, provides follow-up queries. FREE

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Released 2y ago

Free + from $12.5/mo

2,169

56

5.0

Memorae

Productivity and memory made simple with Whatsapp Agentive AI

Productivity

Open

18,686 memorae.ai

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Released 11mo ago

Free + from $3.99/mo

22,021

50

5.0

MCQGPT

Master Internet history through daily AI-powered quizzes.

Trivia games

Open

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Released 3y ago

100% Free

8,595

45

3.2

Memo (Formerly PDF2ANKI)

Convert lecture slides and notes into flashcards instantly.

Flashcards

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3,535 www.pdf2-anki.com

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Released 2y ago

Free + from $8.99/mo

10,429

44

3.7

Keepmind

Keepmind: flashcards, quizzes, and mindmaps to boost memory.

Flashcards

Open

8,645 keepmind.ai

Keepmind can quickly turn study materials or notes into flashcards, quizzes, and mind maps, while using the more efficient FSRS-5 algorithm to boost learning efficiency — super practical!

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Released 10mo ago

Free + from $10/mo

10,901

28

4.0

Octopoda

Persistent memory infrastructure for AI agents with Real Time Analytics

AI memory

Open

8,546 www.octopodas.com

Brilliant system and feels fairly easy to use, one issue with sign in took me 5 mins, but i think its fixed now? Not perfect, but a step in the correct direction!

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Released 3mo ago

100% Free

9,882

27

4.8