Comparison · AI tutors and study assistants

Knowt vs ReLU.chat: which is better in 2026?

ReLU.chat ranks higher in our list of AI tutors and study assistants (#3 against #7, score 82.5 against 75.0).

How we rank Share

  • 75.0
    Editorial score
    82.5
  • 3
    Platforms
    1
  • Yes
    Free to use
    Yes
  • No
    Open source
    Yes

Which should you choose?

Choose Knowt if you want

Summaries and flashcards from class material.

Free flashcards and learn mode, with AI summaries and lecture notes from uploaded material. Its AI tools process what a learner uploads, and it is narrower for tutoring than the tools above.

Choose ReLU.chat if you want

Free on-device answers in six subject areas.

Free study assistants that answer from curated entries on the device, with no account needed. They cannot write new text and cover six subject areas, but answers show source links where they are available.

The main differences

  • Only Knowt runs on iOS.
  • Only Knowt runs on Android.
  • ReLU.chat is open source; Knowt is not.

Side by side

KnowtReLU.chat*
Score75.082.5
Rank in list#7 of 10#3 of 10
PriceFreeFlashcards and learn mode are free, per the home pageFree and open sourceFree to use with no account; source code is public on GitHub
Free to useYesYes
Open sourceNoYes
PlatformsWebiOSAndroidWeb, iOS, AndroidWebWeb
Made byNot statedYunus Emre Vurgun
Tutoring styleSummaries and notes from uploadsAnswers from curated topic entries
Subjects coveredClass material you uploadSix subject areas, curated
Main inputUploaded readings and lecturesTyped questions
Best forSummaries and flashcards from class materialFree on-device answers in six subject areas
Strengths
  • Flashcards and learn mode are free
  • AI summaries from uploaded readings
  • App Store, Google Play and web access
  • Six subject assistants, each with its own curated knowledge base
  • Questions are processed on the device, with no account
  • Answers include source links where available
Limits
  • Uploaded material is processed by the service
  • Answers come from curated entries; no new text is generated
  • Topics are limited to six subject areas, 219 in total
  • Enhanced matching downloads a model of about 22 MB
LinksVisit site Visit site

Questions about Knowt vs ReLU.chat

Is ReLU.chat better than Knowt?
ReLU.chat* ranks higher in our list of AI tutors and study assistants (#3 against #7, score 82.5 against 75.0). Knowt is best for: summaries and flashcards from class material. ReLU.chat is best for: free on-device answers in six subject areas.
Which is cheaper, Knowt or ReLU.chat?
Knowt: Flashcards and learn mode are free, per the home page. ReLU.chat*: Free to use with no account; source code is public on GitHub.
Do Knowt and ReLU.chat run on the same platforms?
Knowt supports Web, iOS, Android. ReLU.chat* supports Web.

Made by, or connected to, the publisher of this site or people the publisher works with. Listed on the same criteria as everything else, with the lift described in How we rank and Disclosure.