Describe your UI copy
Enter average sentence length, line length, font size, heading levels, and jargon count.
READABILITY AUDIT
Readability IQ
Scores interface text based on readability, hierarchy, density, line length, and cognitive effort.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Get a readability score
Readability IQ weighs sentence length, line length, type size, hierarchy, and jargon against known readability thresholds.
Simplify and re-check
Shorten sentences, widen type size, and add headings, then re-run the score.
Continue learning: Who should approve MVP requirements?
Frequently asked questions
What line length is considered readable?
45–75 characters per line is the widely cited comfortable range for body text; much wider or narrower slows reading.
Does font size really affect readability scores?
Yes — body text under 14px measurably increases reading effort and error rates, especially on mobile.
Is this the same as a Flesch-Kincaid score?
No. This tool focuses on interface-specific factors (line length, type size, hierarchy) rather than pure text complexity formulas.
How We Compare
| Feature | MVPHub | Hemingway Editor | Manual copy review |
|---|---|---|---|
| Interface-specific readability scoring | Included | Not included | Not included |
| No setup required | Included | Included | Included |
| Checks type size and line length | Included | Not included | Limited |
| Free | Included | Included | Included |
Hemingway Editor scores prose complexity well but doesn't account for UI-specific factors like type size or line length. Manual review catches nuance but is slow and inconsistent across a team.
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