Using Semrush for Mobile App Keyword Research & ASO

If your team already runs web SEO, you probably have a tool like Semrush — and it is natural to ask whether the semrush app workflow can double for app store optimization. The honest answer: it helps with part of the job and leaves gaps for the rest. This guide explains what a web SEO tool does well for app marketers, where it stops, and how to fill the difference in 2026.

For the full store-side workflow, see our guide to app store keyword research; for the wider strategy, the ultimate ASO guide.

Web SEO vs. app store search: the core gap

The single most important thing to understand: Semrush indexes web search, not app store search. Its volumes and rankings reflect Google web results, not what users type inside the App Store or Google Play. Since store search has its own autocomplete, its own algorithms, and much higher install intent, a web tool alone cannot tell you your semrush app store position — because it does not track store rankings at all.

That does not make it useless for app marketers; it means you must use it for the right jobs.

What Semrush does well for app marketers

Used for the right tasks, a semrush mobile app workflow adds real value:

In other words, it is excellent for the top of the funnel — the web research and content that brings people toward your app before they ever reach a store.

Where it falls short for ASO

For the store side, the gaps are significant:

• No store keyword volume. Web volume ≠ store search volume; they often differ wildly.
• No app store autocomplete. The richest source of real store phrasing is outside its scope.
• No app rank tracking. It cannot tell you your App Store or Google Play position for a keyword.
• No store-specific placement guidance. iOS keyword fields and Android description density are outside a web tool's model.

Relying on a web tool alone for ASO means guessing at exactly the data that matters most.

How to combine web and store tools

The winning setup pairs a web SEO tool with dedicated ASO tooling:

1. Use Semrush for category research, competitor content, and web keywords that feed your blog and landing pages.
2. Use a dedicated app keyword research tool for real store volume, autocomplete, and difficulty.
3. Use a rank tracker for your live App Store and Google Play positions.
4. Connect the funnel: web content captures early-stage searchers, then a strong store listing converts the installs.

This is also why aso and seo increasingly work together in 2026 — AI assistants and web content both feed app discovery, so a joined-up approach beats treating them as separate silos.

Choosing an app keyword research tool to complement Semrush

When adding store-side tooling, prioritize accurate store volume, autocomplete coverage, per-country rank tracking, and both platforms. Our roundup of the best ASO tools compares the categories, and if budget is tight, free ASO keyword tools covers the no-cost route.

Common mistakes

• Treating web volume as store volume. They are different metrics for different search engines.
• Expecting a web tool to track app rankings. It cannot; you need ASO tooling.
• Ignoring the funnel connection. Web content and store listings should tell one story.
• Buying overlapping tools. Pick one strong web tool and one strong ASO tool, not five that duplicate.

Using web data to inform store keywords

Even though web volume differs from store volume, a semrush app workflow can still sharpen your store keyword research if you use it as a directional signal rather than gospel. If a topic shows strong and rising web demand in your category, that interest usually exists inside the stores too — so it is worth checking the equivalent phrases in App Store and Google Play autocomplete. Web tools are also excellent for discovering the questions people ask ("how to split a bill," "best way to track sleep"), which often translate into high-intent long-tail store queries. Treat web research as a source of hypotheses that you then validate with real store data.

The AI-search angle web tools reveal

Here is a genuinely modern reason app marketers keep a web SEO tool: AI assistants increasingly recommend apps, and they draw on web content to do it. Understanding which pages and topics rank on the web for your category tells you what ChatGPT, Gemini, and Perplexity are likely "reading" when a user asks them which app to install. Publishing strong web content around those topics — and keeping your store metadata consistent with it — positions you for this emerging AI-discovery layer. A web tool like Semrush helps you see that landscape; a store-side ASO effort then captures the installs it sends your way. The two are complementary halves of 2026 app discovery.

A practical division of labor

The cleanest way to think about a web tool alongside ASO is to divide the funnel by stage and assign each tool its job:

Assign each tool to the stage it actually serves and you avoid both duplication and blind spots. The classic mistake is stretching a web tool across stages it was never built for — using web volume to pick store keywords, or expecting it to track app rankings it cannot see.

When a web tool is genuinely worth it for app teams

Not every app team needs a full web SEO suite. It earns its cost when you run a content marketing motion — a blog, comparison pages, or landing pages that bring category searchers toward your app — or when you are competing in a space where AI assistants heavily influence app choice and you want to shape what they surface. If, on the other hand, nearly all your discovery happens inside the stores and you publish little web content, your budget is better spent entirely on store-side tooling and execution. Be honest about where your users actually find you, and fund the tools that serve that reality rather than the ones with the loudest marketing.

Let AppsLift handle the store side

A web tool like Semrush is a fine complement, but the store side — real keyword volume, rankings, and the work of climbing them — needs dedicated focus. That is AppsLift. Since 2012 we have pushed 400+ iOS and Android apps to the top of store search for their target keywords, turning organic search into their cheapest install channel.

Start with a free AppsLift audit: paste your app link, pick your markets, and instantly see your real store keyword positions plus the install value of reaching the Top 3 — the store data a web tool can't give you. When you want those rankings delivered, talk to our team.