Flesch-Kincaid Readability & Grade Level Analyzer vs ProWritingAid
Flesch-Kincaid Readability & Grade Level Analyzer
veomark.comProWritingAid
prowritingaid.comSide by side
| Figure | Flesch-Kincaid Readability & Grade Level Analyzer | ProWritingAid |
|---|---|---|
| Price from | Free | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Plans published | 1 | 13 |
| Spec score · Readability Checkers | 7.4 (#21) | 8.5 (#4) |
| Integrations | The calculator page lists no integrations. | Listed integrations include Google Docs and Microsoft Office, plus a desktop editor. |
Plans
Flesch-Kincaid Readability & Grade Level Analyzer
- FreeFree
ProWritingAid
- FreeFree
- Premium$30 a month
- Premium Pro$36 a month
- Premium$120 a year
- Premium Pro$144 a year
- Premium$399, paid once
- Premium Pro$699, paid once
- Premium LifetimePrice not published
- Premium MonthlyPrice not published
- Premium Pro LifetimePrice not published
In their own words
Flesch-Kincaid Readability & Grade Level Analyzer
Flesch-Kincaid Readability & Grade Level Analyzer is a free web calculator for estimating how readable English text may be. It calculates Flesch reading ease and Flesch-Kincaid grade level from sentence, word, and syllable counts. Results include both scores alongside the word, sentence, and estimated syllable counts, with a button to copy them. The page also offers sentence analysis and clarity recommendations, framing its scores as a quick, rough proxy and suggesting shorter sentences and more common words as ways to improve them.
Syllables are estimated by counting vowel groups rather than looking up pronunciations, so silent vowels, unusual spellings, and non-standard pronunciations can throw off the count. The formulas address sentence length and syllable mechanics; they do not assess logic, jargon, tone, or overall clarity. No account is required. Veomark says most of its tools run in the browser and core inputs are not uploaded to its servers, though Google Analytics 4 may use cookies or similar technologies. The calculator lists no integrations. Its plan is free. For privacy questions, Veomark directs visitors to contact the domain registrar or hosting account holder listed for veomark.com.
ProWritingAid
ProWritingAid provides grammar and style suggestions through browser extensions and a desktop editor. It works with Word, Google Docs, Scrivener, Chrome, Firefox, and Edge, and browser extensions are available for Chrome, Firefox, and Edge. The free account handles 500 words at a time and includes two line-editing runs, ten rephrases, three Sparks, and three Creative Nudges per day. Premium and Premium Pro support documents of any length. Premium includes document sharing, real-time comments, and more than 25 writing analysis reports. Its plagiarism checker compares work against webpages, published works, and academic papers. The product supports English only, including general, British, US, Australian, and Canadian English. ProWritingAid says text entered into its editor is not kept on processing servers, is encrypted during processing, and is not used to train algorithms. The free plan is available; listed paid plans include Premium at $30 a month and Premium Pro at $36 a month, both billed monthly.