Readability + Action Score

Will your readers understand and act on your text?

Grammatically correct isn't the same as easy to act on. Paste functional text — an instruction, a policy, an error message, a call to action — and see the surface score, where readers stall, and whether they'll know what to do.

The difference we measure

Same message. One is easy to act on, one isn't. Flesch can't tell them apart — we can.

Version A · the usual memo

The new IT-security course is in the Learning Portal. Staff are asked to be aware of it before 15 March. It takes about twenty minutes. HR can help those who need it.

Flesch 79.7 · Action Score 40

Version B · same facts, clearer

You must complete the IT-security course in the Learning Portal before 15 March. It takes about twenty minutes. If you need help, ask HR.

Flesch 71.8 · Action Score 72

Flesch rates Version A as easier (79.7 vs 71.8). The Action Score shows the opposite: only 40% of readers land the right action in A, vs 72% in B. In Danish, LIX scores the two 22.7 vs 23.1 — identical; it simply can't see the difference.