Keyword Density Counter

Paste any app description (yours or a competitor's) and see which words it actually emphasizes. Apple does not index the description for search — so read the counts as a check on what your copy leads with, or paste a competitor's to see what they chose to repeat. It works just as well on a title, subtitle or keyword-field draft.
0 characters0 words

Nothing to count yet

Paste a description above — yours, a draft you have not shipped, or a competitor's copied from their product page. The count runs entirely in your browser, and the text stays in this browser so it survives a reload.

Found interesting keywords? Score their difficulty and traffic in the keyword research tool, or grade a full listing with the ASO Score checker.

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About this tool

How often does each word appear in your description?

Paste an App Store description and this counts every term in it, ranked by frequency, with a total word count. It is the fastest way to see what your listing copy is actually about rather than what you meant it to be about.

Descriptions drift. A feature gets added, a paragraph gets pasted in from a press release, and the word you most want to be known for ends up appearing once while a filler word appears eleven times.

How it works
  1. 1Paste any description — yours, or a competitor’s copied from their product page.
  2. 2Text is split into terms, normalised for case, and counted. Stop words are separated out so they do not crowd the list.
  3. 3Results show each term, how many times it occurs, and its share of the total.
  4. 4Nothing is uploaded. The count runs entirely in your browser.
What it cannot tell you
  • Apple does NOT index the description for search. It indexes the app name, subtitle and the 100-character keyword field. Repeating a term in the description does not put you in results for it.
  • There is no correct density. Anyone quoting a target percentage for App Store copy is repeating a web-SEO idea that does not transfer.
  • It counts words, not meaning. Two phrasings of the same idea count separately.
Questions

Does keyword density affect App Store ranking?

No. Apple indexes the app name, subtitle and keyword field. The description is read by people, not by the search index, which is why this tool is framed as a readability check rather than a ranking lever.

What should I use it for then?

Checking that your description actually leads with what the app does, spotting filler that repeats, and comparing your copy against a competitor’s to see what they emphasise.

Is my description sent anywhere?

No. The whole count runs in your browser and your text is never sent anywhere — it is saved only to this browser so it survives a reload. Loading an app via the deep link makes one request to Apple to fetch that app’s public description.

Written up on the blog

Keywords & rankings

Keyword researchApple's own autocomplete, expanded and scored by live ranking difficulty.App Store keyword toolEvery term an app ranks for, pulled from live search results.Keyword rank checkerWhere an app sits for any keyword, in any of 175+ storefronts.Daily rank trackingFlag keywords and get a daily snapshot, with 7/30/90-day history and movement.Keyword gapTerms a competitor ranks for and you do not, from live search.Keyword cannibalizationTerms where two of your own apps land in the same result.

Or browse every free App Store optimization tool.