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Head-to-head · Readability Checkers

Readable vs Readability Formulas

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Readable #2 in Readability Checkers 9.2/10 7-day trial Free trial✓ 3 of 4 features Visit Readable
Readability Formulas #5 in Readability Checkers 8.6/10 Free plan Free plan✓ 3 of 4 features Visit site

Readable leads on 0 checks, Readability Formulas on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreReadable · 9.2/10
  • Free planonly Readability Formulas
  • Free trialonly Readable

Readable scores higher on our rubric for readability checkers: 9.2 against 8.6 out of 10; our editors rank them #2 and #5.

Readability Formulas offers free plan; Readable doesn't.

Readable is the better fit for professional teams needing deep web analysis. Readability Formulas is the better fit for mature multi-formula readability analysis.

  • Readable fits best

    Professional teams needing deep web analysis

  • Readability Formulas fits best

    Mature multi-formula readability analysis

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Side by side

Feature Readable 9.2/10 Visit ↗ Readability Formulas 8.6/10 Visit ↗
At a glance
Editor score 9.2 8.6
Ranking #2 in Readability Checkers #5 in Readability Checkers
Best for Professional teams needing deep web analysis Mature multi-formula readability analysis
Pricing model Paid Free plan + paid
Starting price $12/mo Free plan
Free plan — ✓ (best)
Free trial 7 days —
Deployment Cloud Cloud, Desktop, Browser extension
Platforms Web Web, Windows, macOS, Chrome extension
Support Email, Docs Community, Docs
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market, Enterprise
Features Readable 3/4 · Readability Formulas 3/4
Sentence analysis ✓ ✓
Clarity recommendations ✓ ✓
Browser extension Not checked yet ✓ (best)
API access ✓ (best) Not checked yet
Specs
Readability formulas 17 formulas Not checked yet
Language support English English
Our review
Pros
  • 17 named readability formulas and detailed sentence analysis
  • Analyzes text, documents, URLs, emails, spreadsheets, and websites
  • AgencyPro adds API access plus Dropbox and Slack integrations
  • Combines multiple readability formulas with consensus scoring.
  • Includes hard-word, wordiness, and detailed text statistics.
  • Supports batch processing, file imports, graphs, and browser scoring.
Cons
  • No free plan is available
  • The lowest plan supports one user
  • English is the listed language support
  • Language support is focused on English.
  • The product centers on analysis rather than broader writing workflows.
  • Readability Calculations and Readability PLUS are separate software offerings.
Our verdict

Readable is a web-based readability and writing analysis toolkit for writers, authors, educators, marketers, government bodies, insurers, and medical organizations. It evaluates text, documents, URLs, emails, spreadsheets, and websites for…

Read the review →

Readability Formulas is a readability analysis toolkit for writers, editors, educators, marketers, healthcare providers, and government agencies. It evaluates text difficulty, reading grade level, sentence length, word usage, and…

Read the review →
  1. ReadableReadability Checkers 9.27-day trial
  2. Readability FormulasReadability Checkers 8.6Free plan

Strengths and trade-offs

  • Readable — where it wins

    • 17 named readability formulas and detailed sentence analysis
    • Analyzes text, documents, URLs, emails, spreadsheets, and websites
    • AgencyPro adds API access plus Dropbox and Slack integrations

    Where it doesn't

    • No free plan is available
    • The lowest plan supports one user
    • English is the listed language support

  • Readability Formulas — where it wins

    • Combines multiple readability formulas with consensus scoring.
    • Includes hard-word, wordiness, and detailed text statistics.
    • Supports batch processing, file imports, graphs, and browser scoring.

    Where it doesn't

    • Language support is focused on English.
    • The product centers on analysis rather than broader writing workflows.
    • Readability Calculations and Readability PLUS are separate software offerings.
  • Readable9.2/10 · 7-day trial

    A deep web and document readability checker for professional content teams.

    Visit ReadableFull verdict →
  • Readability Formulas8.6/10 · Free plan

    A mature readability toolkit for writers, editors, educators, and content teams.

    Visit siteFull verdict →

More comparisons

All readability checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update