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Best Flesch-Kincaid Calculator Alternatives in 2026

Updated

20 apps from readability checkers ranked against Flesch-Kincaid Calculator on the same published basis.

  1. 1
    ProWritingAid Free plan extension $10/mo6.4
    Flesch-Kincaid Calculator vs ProWritingAid
  2. 2
    ATOS Analyzer Free plan Web Free6.3
    Flesch-Kincaid Calculator vs ATOS Analyzer
  3. 3
    TextGears Free plan apiWeb $2.48/mo6.3
    Flesch-Kincaid Calculator vs TextGears
  4. 4
    AnchorKite Readability Checker Free plan Web Free6.2
    Flesch-Kincaid Calculator vs AnchorKite Readability Checker
  5. 5
    ApyHub Readability Scores Documents API Free plan api $16/mo6.2
    Flesch-Kincaid Calculator vs ApyHub Readability Scores Documents API
  6. 6
    Botoi Readability API Free plan api $9/mo6.2
    Flesch-Kincaid Calculator vs Botoi Readability API
  7. 7
    Check Readability Free plan extensionWeb Free6.2
    Flesch-Kincaid Calculator vs Check Readability
  8. 8
    Readability Analysis Tool (RAT) Free plan LinuxWin Free6.2
    Flesch-Kincaid Calculator vs Readability Analysis Tool (RAT)
  9. 9
    Readability Formulas Free plan extensionMacWebWin Free6.2
    Flesch-Kincaid Calculator vs Readability Formulas
  10. 10
    Text Inspector Free plan apiWeb Free6.2
    Flesch-Kincaid Calculator vs Text Inspector
  11. 11
    Analyze My Writing Free plan Web Free6.1
    Flesch-Kincaid Calculator vs Analyze My Writing
  12. 12
    Data·yze Readability Analyzer Free plan Web Free6.1
    Flesch-Kincaid Calculator vs Data·yze Readability Analyzer
  13. 13
    Delimiter Readability Checker Free plan Web Free6.1
    Flesch-Kincaid Calculator vs Delimiter Readability Checker
  14. 14
    DO101 Readability Checker Free plan Web Free6.1
    Flesch-Kincaid Calculator vs DO101 Readability Checker
  15. 15
    Eclipse Readability Studio Free plan LinuxMacWin Free6.1
    Flesch-Kincaid Calculator vs Eclipse Readability Studio
  16. 17
    Flesch-Kincaid Readability & Grade Level Analyzer Free plan Web Free6.1
    Flesch-Kincaid Calculator vs Flesch-Kincaid Readability & Grade Level Analyzer
  17. 18
    Readability.ch Free plan Web Free6.1
    Flesch-Kincaid Calculator vs Readability.ch
  18. 19
    ReadabilityTool Free plan Web Free6.1
    Flesch-Kincaid Calculator vs ReadabilityTool
  19. 20
    Slick Write Free plan extensionWeb Free6.1
    Flesch-Kincaid Calculator vs Slick Write
  20. 21
    Hemingway Editor Free trial MacWebWin $0.69/mo5.8
    Flesch-Kincaid Calculator vs Hemingway Editor

Flesch-Kincaid Calculator alternatives compared

#AppScoreFree planFromRuns on
1ProWritingAid6.4Free plan$10/moBrowser
2ATOS Analyzer6.3Free planFreeWeb
3TextGears6.3Free plan$2.48/moAPI, Web
4AnchorKite Readability Checker6.2Free planFreeWeb
5ApyHub Readability Scores Documents API6.2Free plan$16/moAPI
6Botoi Readability API6.2Free plan$9/moAPI
7Check Readability6.2Free planFreeBrowser, Web
8Readability Analysis Tool (RAT)6.2Free planFreeLinux, Windows
9Readability Formulas6.2Free planFreeBrowser, Mac, Web, Windows
10Text Inspector6.2Free planFreeAPI, Web
11Analyze My Writing6.1Free planFreeWeb
12Data·yze Readability Analyzer6.1Free planFreeWeb
13Delimiter Readability Checker6.1Free planFreeWeb
14DO101 Readability Checker6.1Free planFreeWeb
15Eclipse Readability Studio6.1Free planFreeLinux, Mac, Windows
17Flesch-Kincaid Readability & Grade Level Analyzer6.1Free planFreeWeb
18Readability.ch6.1Free planFreeWeb
19ReadabilityTool6.1Free planFreeWeb
20Slick Write6.1Free planFreeBrowser, Web
21Hemingway Editor5.8No$0.69/moMac, Web, Windows
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Questions about Flesch-Kincaid Calculator alternatives

What is the best alternative to Flesch-Kincaid Calculator?

ProWritingAid, number 1 in readability checkers with a score of 6.4 out of 10. The others here: ATOS Analyzer, TextGears, AnchorKite Readability Checker and 16 more.

What is the best free alternative to Flesch-Kincaid Calculator?

ProWritingAid is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.