iOS vs Android Keywords for Teams: One List Fits 100 Byte iOS Field

iOS vs Android Keywords for Teams: One List Fits 100 Byte iOS Field

The App Store ranks your app partly on a hidden 100-character keywords field and ignores your description entirely, while Google Play has no keywords field at all and indexes your title, short description, and full description together. This guide walks through field limits, placement tactics, policy traps, and how to track whether your changes actually move rankings.

TL;DR:

• Keywords in the App Store are limited to 100 bytes and should not duplicate words in the app name or subtitle, or include trademarks or competitor names.
• Google Play indexes keywords across the title, short description, and full description, making natural language optimization and prioritization essential.
• Reusing the same keyword research for both stores saves time, but placement strategies differ: iOS uses hidden keywords and name/subtitle, while Android relies on natural inclusion in descriptions.
• Tracking the effectiveness of keyword changes requires separate metrics, such as rankings, impressions, and conversions, and testing should be given time to produce reliable signals.
• Centralized keyword research and tracking in a single workspace, like Apptenium, streamline metadata management and help maximize search visibility without duplicated effort.

Table of Contents

• iOS and Android metadata fields at a glance
• How to execute one keyword list across both stores
• Getting the iOS keywords field right
• Getting the Android metadata right
• How to track whether your changes worked
• What years of splitting keyword work taught me
• How Apptenium fits into this workflow
• FAQ
• Sources

iOS and Android metadata fields at a glance

Before you touch a listing, it helps to see both platforms side by side. Apple and Google weigh different fields, enforce different character limits, and police different violations, so a tactic that works on one store can waste space or trigger a rejection on the other.

The App Store Connect help documentation confirms the name field runs 2 to 30 characters and the subtitle caps at 30, with the keywords property supporting localization. Google’s Play Console metadata policy prohibits deceptive or spammy keyword stuffing in any of those fields.

A few rules apply regardless of platform:

• Never repeat your app name or company name inside the keywords field, since Apple already indexes those separately.
• Never list competitor app names or trademarked terms you do not own.
• Never pad a description with unrelated keyword lists; both stores treat that as a policy violation, not a growth hack.

How to execute one keyword list across both stores

Running separate keyword research for iOS and Android doubles your workload without doubling your results. Build one prioritized list first, then split how you place it.

1. Research once. Pull keyword candidates from search suggestions, competitor listings, and your own conversion data, then rank them by relevance and intent rather than raw volume.
2. Tag by intent. Group terms into clusters (feature-based, problem-based, category-based) so you can map clusters to fields instead of scattering individual words.
3. Place for iOS. Put your top two or three terms in the app name, the next tier in the subtitle, and fill the hidden keywords field with unique terms only, separated by commas, staying within 100 bytes total. Never duplicate a word that already appears in your name or subtitle.
4. Place for Android. Weave the same priority terms naturally into the title, then repeat the top terms once or twice across the short description and the opening lines of the full description, since Google Play indexes all three fields.
5. Localize per territory. Build a separate keyword matrix for each market rather than translating word-for-word, since search behavior shifts by language and region.

Pro Tip: Keep your master keyword list in a shared spreadsheet with a “placed on iOS” and “placed on Android” column so nothing gets forgotten during a metadata refresh.

This split lets a marketing team move fast without re-running research every time a listing needs an update.

Getting the iOS keywords field right

Apple’s hidden keywords field is the single most misunderstood part of App Store metadata. It carries real ranking weight, but a few careless choices waste most of it.

• Respect the limits. Name runs up to 30 characters, subtitle up to 30, and the keywords field up to 100 bytes, not characters, so accented letters or certain symbols can cost more space than they look like they do.
• Never duplicate words. A term already in your app name or subtitle does not need to appear again in the keywords field; repeating it just burns bytes you could spend on a new term.
• Avoid trademarks and competitor names. Apple’s product page guidance is explicit that keywords must not include other apps’ names or protected trademarks without permission.
• Skip unnecessary punctuation. Commas separate terms efficiently; spaces around them and special characters like asterisks or quotation marks add nothing but wasted bytes.

Your app description plays no role in ranking. Apple does not index description text for search, so that space is pure conversion copy. Write it to sell the download, not to stuff keywords.

A workable packing pattern looks like: name carries your brand plus one strong keyword, subtitle carries two more high-priority terms, and the keywords field fills the rest with unique singular and plural variants, synonyms, and misspellings worth catching. Before you submit, check that no word repeats across fields and that you are under the byte limit, not just the character count.

Getting the Android metadata right

Google Play’s indexing model rewards natural language more than Apple’s does, since the full description genuinely counts toward ranking. Play Console’s store listing guidance recommends writing for users first and keeping the most important information above the fold.

• Title (30 characters): lead with your brand and your single strongest keyword; Google indexes this field heavily.
• Short description (80 characters): this is often the first thing a searcher reads in results, so put a priority term in a natural sentence rather than a keyword fragment.
• Full description (up to 4,000 characters): repeat your top three to five terms naturally across the opening paragraph and throughout the body, since both relevance and readability affect performance.
• Avoid emoji and excessive symbols in the title and short description, since they can hurt readability and clash with Play’s own formatting recommendations.

Pro Tip: Write your Android short description as a complete, readable sentence first, then check whether your priority keyword fits naturally. Never force a keyword into an awkward phrase.

Metadata only gets you so far on Android; for practical guidance on optimizing content for AI-enabled search and visibility, see AI Search Optimisation – MYBMC. Google Play layers behavioral signals like install velocity, retention, and engagement on top of keyword relevance, so a listing that attracts the wrong users can rank worse over time even with perfect copy. Write your listing to attract people who will actually use the app, not just click it.

How to track whether your changes worked

Metadata edits mean nothing if you cannot tell whether they moved the needle. Track each store separately, since ranking algorithms and reporting tools differ.

1. Track the right metrics per store: keyword rankings, impressions, installs, conversion rate (impressions to installs), retention, and uninstall rate.
2. Run controlled tests where each store allows it: Google Play experiments let you test store listing variants directly, while Apple’s phased releases and A/B testing options apply more narrowly; hold your creative and pricing constant while you test copy.
3. Give tests enough time: a window too short produces noise instead of signal, since keyword rankings can shift day to day before settling.
4. Watch for attribution pitfalls: a ranking jump that coincides with a featured placement, a paid campaign, or a seasonal spike is not proof your keyword edit worked, so isolate variables wherever you can.

As one ASO strategy comparison puts it, tracking store results separately matters because the same keyword can behave completely differently depending on which store’s signals are driving it.

What years of splitting keyword work taught me

The biggest mistake I see teams make is treating iOS and Android keyword work as two unrelated projects. It is one research problem with two execution paths, and treating it that way cuts the workload roughly in half without losing quality on either store.

The second mistake is obsessing over metadata while ignoring retention. Google Play’s behavioral signals mean a keyword-perfect listing that attracts the wrong users can rank worse over time than an honest one. Centralizing keyword research and tracking in a single workspace, rather than juggling spreadsheets and two separate consoles, is where most teams recover the time they lose to duplicate work.

— Mike

How Apptenium fits into this workflow

We built Apptenium around exactly this problem: one place to research, place, and track keywords without jumping between spreadsheets, App Store Connect, and Play Console. Our platform scans your current listing, flags where keyword placement is wasting space on either store, and generates AI-powered suggestions you can apply directly, no rewriting from scratch.

What we offer maps directly onto the workflow above:

• Scan your existing iOS and Android listings for keyword and metadata issues in one pass.
• Get AI recommendations for copy-ready fixes to names, subtitles, and descriptions.
• Track rankings separately by store so you can see which edits actually moved the needle.

We offer a Free plan to get started, and a Pro plan with unlimited scans and premium tracking; current prices are on the pricing page. Check Apptenium pricing to see which tier fits your team.

FAQ

Does the App Store really have a hidden keywords field?

Yes, Apple provides a dedicated keywords field in App Store Connect, limited to 100 characters or bytes, that never appears publicly but carries real ranking weight. The App Store product page guidance confirms this field exists specifically for discoverability, separate from the visible name and subtitle.

Can I use the same keywords on iOS and Android?

You can use the same prioritized keyword list, but you place the terms differently: iOS relies on the name, subtitle, and hidden keywords field, while Google Play indexes the title, short description, and full description. Reusing research saves time; copying placement verbatim wastes it.

Does my app description affect App Store ranking?

No, Apple does not index description text for search ranking, so that space functions purely as conversion copy to persuade someone who already found your app. Google Play is different: its full description is indexed and does contribute to ranking.

What keyword terms are not allowed in app store metadata?

Neither store allows trademarked terms you do not own, competitor app names, or deceptive and irrelevant keyword stuffing, according to Apple’s app information guidelines and Google Play’s metadata policy. Violations can trigger rejection or removal rather than just a ranking penalty.

How long should I wait before judging a keyword change?

Give a metadata change enough time for rankings to settle before drawing conclusions, since short windows tend to produce noise rather than a reliable signal. Isolate other variables such as paid campaigns or featured placements, which can mask or exaggerate what your edit actually did.

Sources

• Metadata - Play Console Help
• App information - App Store Connect - Apple Developer