ASOGrade Guide

What Actually Affects App Store Ranking in 2026

The current App Store ranking formula in plain terms: relevance, conversion, retention, and download velocity, and which of these a keyword update can and can't move.

Ranking is a multiplication, not a checklist

App Store search ranking in 2026 behaves less like a checklist of factors you tick off and more like a formula where several inputs multiply against each other: metadata relevance, conversion rate, retention, and download velocity. A weak score on any one factor drags down the combined result, regardless of how strong the others are.

This matters for how you think about a metadata update. Perfect keyword placement in your title and subtitle raises relevance, but if your app's conversion rate from search impression to install is well below your category average, or retention is poor, the metadata work alone won't produce the ranking gain you're expecting.

The four inputs aren't equally controllable on the same timeline. Metadata relevance changes the moment your update is indexed. Conversion rate responds to icon, screenshots, and rating within days. Retention and download velocity are slower-moving and reflect the underlying product, not a single update cycle.

Relevance: what a keyword update actually does

Relevance is the piece keyword research directly controls. Your title, subtitle, and keyword field tell Apple's algorithm which queries your app is a plausible answer to. Getting this right is necessary but not sufficient — it makes you eligible to rank, it doesn't guarantee a strong position on its own.

Screenshot caption text has been part of this relevance signal since June 2025, when Apple began OCR-indexing the text visible in screenshot captions. This is a real, if secondary, extension of what counts as indexed metadata beyond the three classic fields.

Conversion rate: the multiplier most keyword research ignores

Conversion rate — the share of people who see your app in search results and actually install it — sits around 3-5% across most categories, though this varies widely by category and by how well-targeted your keyword traffic is. A high-relevance keyword sending you low-intent traffic can produce a weak conversion rate that undermines the ranking benefit of ranking for it in the first place.

This is why a gap-analysis keyword pulled from a competitor teardown needs a relevance check, not just a difficulty check. A term with real demand and low difficulty that doesn't actually describe what your app does will convert poorly once you start appearing in its results, which works against you over time rather than for you.

Icon, screenshots, preview video, and rating are the primary levers for conversion rate. None of these are keyword research's job, but a keyword strategy that ignores them is optimizing one multiplier while leaving another one weak.

Retention and download velocity: what compounds and what a keyword update can't fix

Retention — whether users who install keep using the app — is now read as a first-class ranking signal in both major app stores, not just a business metric. A smaller app with strong retention and a 4.6-star rating can outrank a larger, better-known app with weaker post-install engagement, because the algorithm is weighing what happens after the install, not just before it.

Download velocity, the rate of installs over a given period, acts as a multiplier on top of the others. This is part of why the halo effect between paid Apple Search Ads and organic ranking is real: a burst of paid installs raises velocity, which raises ranking, which raises organic visibility independent of any metadata change.

Neither retention nor velocity responds to a keyword field update. They're downstream of product quality and marketing reach. Keyword research remains the right lever for relevance and a meaningful lever for the traffic that feeds velocity, but it isn't a substitute for the product and growth work behind the other two factors.

Frequently asked questions

If I fix my keywords but my app has weak retention, will ranking improve?
Some, from the relevance gain alone, but less than if retention were also strong. The four factors multiply rather than add, so a weak factor caps the benefit of improving a different one. Expect a partial gain, not the full potential of a well-targeted keyword set.
Does Apple publish the exact weighting of these ranking factors?
No. Apple doesn't disclose precise weights for relevance, conversion, retention, and download velocity. The multiplicative framing reflects observed behavior in the ranking system, documented by ASO researchers and practitioners, not an official formula from Apple.
Is screenshot caption text as important as the title or subtitle for ranking?
No — it's a secondary signal added more recently, not a replacement for the three primary indexed fields (title, subtitle, keyword field). Treat correctly worded screenshot captions as a supplementary opportunity, not your main keyword strategy.

Related resources

More guides

Apply this in your own keyword research

Score App Store keywords by popularity and difficulty across 109 storefronts — the tool behind every strategy in this guide.

Start keyword research