ASO Stop Word Remover

Strip the stop words Apple ignores and reclaim keyword field characters.

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Apple’s search index ignores common stop words — “the”, “and”, “for”, “a”, “of”, “with” and their kin — when it parses your keyword field. An app listed under “games for kids” is indexed for “games” and “kids”; the “for” contributes nothing and costs four characters, comma included, in a field where you only get one hundred.

This tool scans your keyword list against a curated ASO stop-word set and strips every term that earns no index entry. It is the fastest single cleanup you can run on a keyword field: zero ranking downside, guaranteed character savings.

How to remove stop words from your keyword list

  1. 1

    Paste your keyword list — comma-separated or one per line — into the tool.

  2. 2

    Run the remover; it flags and strips stop words both as standalone entries and inside multi-word phrases.

  3. 3

    Review the flagged words before accepting, in case a term is genuinely part of a brand name.

  4. 4

    Copy the cleaned list and reinvest the saved characters into keywords Apple will actually index.

Why Apple skips stop words — and what that means for your field

Search engines discard extremely common words because they appear in nearly every query and text, carrying no discriminating signal — matching on “the” would match everything. Apple’s App Store search works the same way: when a user types “apps for learning spanish”, the engine effectively matches on “learning” and “spanish” (and expands “apps” automatically). Your keyword field is parsed with the same logic, so writing “for” into it buys you nothing.

The trap is that stop words feel natural to include because humans think in phrases. “trainer for dogs” reads like the search you want to win — but in the keyword field it should be “trainer,dogs”, and the phrase match still happens because Apple recombines individual words. Every preposition and article you type is a character subsidy paid to grammar that the algorithm never sees.

Where stop words still belong in your metadata

Do not scrub stop words from user-facing fields. Your app name, subtitle, promotional text, and descriptions are read by people, and “Recipes & Meal Plans for Busy Families” converts precisely because it reads like language. The stop-word rule is specific to the hidden keyword field, where no human ever looks and character efficiency is the only currency.

Also mind the exceptions: a stop word inside a brand or fixed expression (“The North Face”, “Face ID”) may be integral to the term. That is why this tool shows you what it stripped instead of silently rewriting — review the diff, keep genuine brand components, and let everything else go.

Frequently asked questions

Which words count as stop words in ASO?

Articles, conjunctions, and prepositions like “the”, “a”, “an”, “and”, “or”, “for”, “of”, “with”, “to”, and “in”, plus terms Apple matches automatically anyway — such as “app” and plural variants of words you already list. None of them earns an index entry in the keyword field.

Does Apple really ignore stop words in the keyword field?

Yes — Apple’s search parses the field into meaningful words and discards common stop words, and Apple’s own developer guidance advises leaving them out. Rankings for “games for kids” come from “games” and “kids”; the “for” is dead weight.

Should I remove stop words from my subtitle and description too?

No. Those fields are read by users, and natural phrasing drives conversion. The economics only flip in the hidden 100-character keyword field, where nobody reads the text and every character has an opportunity cost.

How many characters does stop word removal typically save?

Phrase-heavy keyword fields commonly recover 8–20 characters — each stripped stop word saves its own length plus a separator. That is one to three additional real keywords’ worth of space.

What about stop words in other languages?

The same principle applies per localization — French “pour”, Spanish “para”, German “für” are equally ignorable in their locales’ keyword fields. Clean each localization against its own language’s stop-word list rather than only the English one.

Fill the freed space with proven keywords

Appalize’s Keyword Research shows real search popularity for every candidate, so the characters you just reclaimed go to terms with actual traffic — then rank tracking confirms the move paid off.

Find better keywords free

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