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Head-to-head · AI Readability Checkers

Readability Formulas vs Etoolio Easy Read Checker

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Readability Formulas #5 in AI Readability Checkers 8.7/10 Free plan Free plan✓ 0 of 4 features Visit site
Etoolio Easy Read Checker #7 in AI Readability Checkers 8.5/10 Free plan Free plan✓ 4 of 4 features Visit Etoolio

Readability Formulas leads on 0 checks, Etoolio Easy Read Checker on 0, and 5 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 scoreReadability Formulas · 8.7/10
  • Free planboth
  • Most featuresEtoolio Easy Read Checker · 4 of 4

Readability Formulas scores higher on our rubric for ai readability checkers: 8.7 against 8.5 out of 10; our editors rank them #5 and #7.

Readability Formulas is the better fit for established multi-format readability scoring. Etoolio Easy Read Checker is the better fit for easy Read checks with optional AI rewriting.

  • Readability Formulas fits best

    Established multi-format readability scoring

  • Etoolio Easy Read Checker fits best

    Easy Read checks with optional AI rewriting

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Side by side

Feature Readability Formulas 8.7/10 Visit ↗ Etoolio Easy Read Checker 8.5/10 Visit ↗
At a glance
Editor score 8.7 8.5
Ranking #5 in AI Readability Checkers #7 in AI Readability Checkers
Best for Established multi-format readability scoring Easy Read checks with optional AI rewriting
Pricing model Free plan + paid Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Browser extension Cloud
Platforms Web, Windows, macOS, Chrome extension Web
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Readability Formulas 0/4 · Etoolio Easy Read Checker 4/4
Grade-level analysis Not checked yet ✓ (best)
Sentence complexity Not checked yet ✓ (best)
Plain-language rewrites Not checked yet ✓ (best)
Accessibility guidance Not checked yet ✓ (best)
Specs
Readability scores Not checked yet Not checked yet
Input formats Not checked yet Text
Our review
Pros
  • Scores text with multiple named readability formulas
  • Imports text, PDF, Word, and HTML documents
  • Includes batch processing and a Chrome browser extension
  • Checks reading age, sentence complexity, passive voice, and difficult words
  • Highlights problem sentences and words directly in the text
  • Optional AI rewrite simplifies wording while retaining facts, names, and numbers
Cons
  • Language support is limited to English
  • The feature set centers on readability rather than broader writing workflows
  • Desktop software and web tools are separate offerings
  • Web-only access limits use to browser-based workflows
  • Input is limited to pasted text or plain-text files
  • AI rewriting is optional rather than the tool's primary focus
Our verdict

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

Read the review →

Etoolio Easy Read Checker is a browser-based text checker for public information and other content intended for people with learning disabilities, low literacy, or readers using English as an additional language. It analyzes pasted text…

Read the review →
  1. Readability FormulasAI Readability Checkers 8.7Free plan
  2. Etoolio Easy Read CheckerAI Readability Checkers 8.5Free plan

Strengths and trade-offs

  • Readability Formulas — where it wins

    • Scores text with multiple named readability formulas
    • Imports text, PDF, Word, and HTML documents
    • Includes batch processing and a Chrome browser extension

    Where it doesn't

    • Language support is limited to English
    • The feature set centers on readability rather than broader writing workflows
    • Desktop software and web tools are separate offerings

  • Etoolio Easy Read Checker — where it wins

    • Checks reading age, sentence complexity, passive voice, and difficult words
    • Highlights problem sentences and words directly in the text
    • Optional AI rewrite simplifies wording while retaining facts, names, and numbers

    Where it doesn't

    • Web-only access limits use to browser-based workflows
    • Input is limited to pasted text or plain-text files
    • AI rewriting is optional rather than the tool's primary focus
  • Readability Formulas8.7/10 · Free plan

    A broad English readability toolkit with free multi-formula scoring and document analysis.

    Visit siteFull verdict →
  • Etoolio Easy Read Checker8.5/10 · Free plan

    A focused free checker for readability issues, accessibility wording, and optional AI rewrites.

    Visit EtoolioFull verdict →

More comparisons

All AI readability checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update