What does the score mean?

It is issues per 100 words, not a raw count, so a long essay isn't punished for being long. 100 means nothing was flagged.

Why do some issues have no suggested fix?

Because an honest one doesn't exist. "Think outside the box" has no drop-in replacement — the fix is to name the actual idea, so the tool says that instead of pasting advice into your document.

Can I turn off a check I disagree with?

Yes — tap any check in the list to mute it. Adverbs and passive voice in particular are style opinions, not errors.

Cliché Finder — Spot Tired Phrases in Your Writing

Find the clichés, filler words and hedging in a draft, with a concrete replacement where one exists and honest advice where it doesn't. Free and private.