Best Readability Formulas Alternatives in 2026
Updated
20 apps from readability checkers ranked against Readability Formulas on the same published basis.
- 2Readability Formulas vs ProWritingAid
- 3Readability Formulas vs TextGears
- 4Readability Formulas vs AnchorKite Readability Checker
- 5Readability Formulas vs Check Readability
- 6Readability Formulas vs Data·yze Readability Analyzer
- 7Readability Formulas vs Delimiter Readability Checker
- 8Readability Formulas vs ReadabilityTool
- 9Readability Formulas vs Text Inspector
- 10Readability Formulas vs Slick Write
- 11Readability Formulas vs Hemingway Editor
- 12Readability Formulas vs Eclipse Readability Studio
- 13Readability Formulas vs Readability Analysis Tool (RAT)
- 14Readability Formulas vs Analyze My Writing
- 15Readability Formulas vs ApyHub Readability Scores Documents API
- 16Readability Formulas vs ATOS Analyzer
- 17Readability Formulas vs Botoi Readability API
- 18Readability Formulas vs DO101 Readability Checker
- 19Readability Formulas vs Flesch-Kincaid Calculator
- 20Readability Formulas vs Flesch-Kincaid Readability & Grade Level Analyzer
- 21Readability Formulas vs Readability.ch
Readability Formulas alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 2 | ProWritingAid | 6.4 | Free plan | $10/mo | Browser |
| 3 | TextGears | 6.4 | Free plan | $2.48/mo | API, Web |
| 4 | AnchorKite Readability Checker | 6.3 | Free plan | Free | Web |
| 5 | Check Readability | 6.3 | Free plan | Free | Browser, Web |
| 6 | Data·yze Readability Analyzer | 6.3 | Free plan | Free | Web |
| 7 | Delimiter Readability Checker | 6.3 | Free plan | Free | Web |
| 8 | ReadabilityTool | 6.3 | Free plan | Free | Web |
| 9 | Text Inspector | 6.3 | Free plan | Free | API, Web |
| 10 | Slick Write | 6.2 | Free plan | Free | Web |
| 11 | Hemingway Editor | 5.6 | No | $0.69/mo | Mac, Web, Windows |
| 12 | Eclipse Readability Studio | 5.2 | No | — | Windows, Mac, Linux |
| 13 | Readability Analysis Tool (RAT) | 5.2 | No | — | Windows, Linux |
| 14 | Analyze My Writing | 5.1 | No | — | Web |
| 15 | ApyHub Readability Scores Documents API | 5.1 | No | — | — |
| 16 | ATOS Analyzer | 5.1 | No | — | Web |
| 17 | Botoi Readability API | 5.1 | No | — | — |
| 18 | DO101 Readability Checker | 5.1 | No | — | Web |
| 19 | Flesch-Kincaid Calculator | 5.1 | No | — | Web |
| 20 | Flesch-Kincaid Readability & Grade Level Analyzer | 5.1 | No | — | Web |
| 21 | Readability.ch | 5.1 | No | — | Web |
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Questions about Readability Formulas alternatives
What is the best alternative to Readability Formulas?
ProWritingAid, number 2 in readability checkers with a score of 6.4 out of 10. The others here: TextGears, AnchorKite Readability Checker, Check Readability and 16 more.
What is the best free alternative to Readability Formulas?
ProWritingAid is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.