Both Apple and Google dramatically changed how they rank apps in 2025. Apple now indexes text from your screenshot captions as keywords. Google Play shifted from ranking by install volume to ranking by retention and engagement. If your ASO strategy hasn't changed since last year, it's already outdated.
This guide covers every confirmed ranking factor on both platforms, what changed in 2025–2026, and what you can do about it. 65% of App Store downloads come from search, and apps below position 3 lose 90% of potential downloads — getting this right directly impacts your business.
We'll cover iOS and Google Play separately, then show you the cross-platform signals that matter on both.
🍎 Apple App Store Ranking Factors
Metadata Signals
App Title (30 characters)
Strongest ranking signal. Your primary keyword should appear in the title. Apple weights title keywords more heavily than any other metadata field.
Tip: Use every character. A title like "MyApp - Photo Editor & Filters" ranks for more queries than just "MyApp."
Subtitle (30 characters)
Second strongest signal. Use it for secondary keywords that don't fit in the title. Don't repeat title words — Apple already associates them.
Keyword Field (100 characters)
Hidden from users but indexed for search. Comma-separated, no spaces after commas. Don't repeat words already in title or subtitle. Use singular forms (Apple matches plurals automatically).
Important: Descriptions Are NOT Indexed
Unlike Google Play, Apple's App Store does not index the long description for search. Your description affects conversion (convincing users to download after they find you), not discovery. Don't waste time stuffing keywords into your App Store description.
[NEW] Screenshot Caption Indexing
In June 2025, Apple began extracting text from screenshot captions and treating it as keyword metadata for search ranking. Appfigures called this "one of the most significant algorithm changes in years."
What This Means
- ✓ Keywords in screenshot captions can strengthen existing keywords from your title/subtitle/keyword field
- ✓ Caption keywords can also introduce entirely new keywords not in your traditional metadata
- ✓ Unlike title/keyword field duplication, screenshot keywords don't compete with your other metadata fields
- ✓ Apps saw dramatic ranking changes after the update — some rising sharply, others dropping
How to Optimize Screenshot Captions
- 1. Write keyword-aware caption text. Instead of "Easy to use," write "Track your fitness goals daily" — where "fitness" and "track" are target keywords.
- 2. Use legible, high-contrast fonts. Apple's text extraction likely works better with clear, readable text. Avoid decorative fonts or text over busy backgrounds.
- 3. Place captions in top and bottom areas. These regions appear to be extracted most reliably.
- 4. Use captions for long-tail keywords that don't fit in your 100-character keyword field. This is extra keyword real estate.
[NEW] In-App Events in Search
Apple now indexes in-app events and matches them to search queries. Apps publishing 2–4 events per month earn significantly more organic impressions.
In-app events are time-limited cards that appear in search results and on your product page — think "Summer Sale," "New Feature Launch," or "Limited Challenge."
Action: Create 2–4 in-app events monthly in App Store Connect. Use keyword-aware event names and descriptions. They give your app additional real estate in search results.
[NEW] Custom Product Pages in Organic Search
As of July 2025, Custom Product Pages (CPPs) now appear in organic search results — not just paid ads. The limit was doubled from 35 to 70 CPPs per app.
This means you can create targeted landing pages with different screenshots, descriptions, and promotional text for different search intents — and Apple will show the most relevant CPP for each query.
Other iOS Ranking Signals
- • Download velocity: Spike in downloads signals relevance. Organic growth compounds.
- • Ratings and reviews: Volume and recency matter. A 4.5-star app with 100 recent reviews outranks a 4.8-star app with 10 old reviews.
- • Update frequency: 74% of top 1,000 iOS apps update monthly. Regular updates signal an active, maintained app.
- • Engagement and retention: Apple uses post-install engagement as a quality signal, though less explicitly than Google Play.
- • AI App Store Tags: Apple is testing AI-generated tags created from your metadata. Getting your metadata right feeds this system.
🤖 Google Play Ranking Factors
Google Play's algorithm underwent a fundamental shift in 2025. The old playbook — drive installs, climb the charts — no longer works. Here's what does.
[CHANGED] Retention Over Downloads
Google Play now prioritizes retention and engagement over raw install volume. An app with 10,000 installs and 40% Day 1 retention can outrank an app with 100,000 installs and 15% retention.
Retention Benchmarks That Affect Ranking
Users who return the day after installing
Users who return within a week of installing
Apps significantly below these benchmarks tend to rank lower regardless of download count.
[STRONGER] Android Vitals
Technical performance now directly impacts search rankings. Android Vitals metrics that Google uses:
| Vital | Bad Threshold | Impact |
|---|---|---|
| Crash rate | >1.09% user-perceived | Ranking penalty |
| ANR rate | >0.47% user-perceived | Ranking penalty |
| Excessive wakeups | >10 per hour | Visibility reduction |
| Stuck wake locks | >0.10% of sessions | Visibility reduction |
Google Play Metadata Signals
App Title (30 characters)
Strongest ranking signal — same as iOS. Front-load your primary keyword.
Short Description (80 characters)
Indexed and influences both ranking and conversion. Visible before users expand "About this app." Use your strongest secondary keywords.
Long Description IS Indexed (Unlike Apple)
Google Play fully indexes the 4,000-character long description. Optimal keyword density is approximately 1 keyword per 250 characters. Use natural language — NLP and semantic indexing mean keyword stuffing is penalized. Google's algorithms understand synonyms and intent.
[NEW] AI-Driven Guided Search
Google implemented AI-driven Guided Search where users type goals rather than keywords — e.g., "find housing" instead of "apartment app." This means your metadata should describe what problems your app solves, not just feature lists.
[NEW] Portrait Video in Listings
Google introduced portrait video for store listings, with early data showing:
watch time
video completions
conversion rate
⚖️ iOS vs. Google Play: Side-by-Side Comparison
| Factor | Apple App Store | Google Play |
|---|---|---|
| Title length | 30 characters | 30 characters |
| Subtitle / short desc | 30 chars (indexed) | 80 chars (indexed) |
| Long description indexed? | No | Yes (4,000 chars) |
| Hidden keyword field? | Yes (100 chars) | No |
| Screenshot captions indexed? | Yes (June 2025) | No |
| Primary ranking signal | Keyword relevance + downloads | Retention + engagement |
| Technical quality signal | Crash reports (indirect) | Android Vitals (direct) |
| Privacy label affects conversion? | Yes (Privacy Nutrition Labels) | Yes (42% check before download) |
🎯 What Both Algorithms Now Have in Common
Despite their differences, both platforms converged on one theme in 2025: user behavior after install matters more than ever.
- • Retention signals: Both platforms now use post-install behavior as a quality indicator. Downloads without engagement hurt you.
- • Update frequency: 74% of top-ranked apps update monthly. Both platforms reward active development.
- • Privacy labels: 42% of users now check privacy labels before downloading (up from 25% in 2024). A clean label improves conversion rate, which improves ranking.
- • Ratings velocity: Recent ratings matter more than historical averages on both platforms.
🚀 Your Action Plan
Here's what to do this week to align with the 2026 ranking factors:
1. Fix Your Screenshot Captions (iOS)
Review every screenshot caption. Replace generic text with keyword-aware copy that serves both users and Apple's indexing. This is the easiest ranking win available right now.
2. Track Retention Metrics (Google Play)
If you don't know your Day 1 and Day 7 retention rates, you're flying blind on the most important ranking signal. Set up analytics that measure session-based retention — when users come back, how deep they engage, and where they drop off.
3. Fix Android Vitals
Check Play Console → Android Vitals. If your crash rate exceeds 1.09% or ANR rate exceeds 0.47%, fixing these gives you a ranking boost before any metadata optimization.
4. Create In-App Events (iOS)
Publish 2–4 in-app events in App Store Connect this month. They're now indexed for search and give your app additional real estate in results.
5. Optimize Your Long Description (Google Play)
Rewrite with natural keyword integration (~1 keyword per 250 characters). Describe what problems your app solves — Google's AI-driven search matches user goals, not keyword strings.
6. Clean Up Your Privacy Label
With 42% of users checking privacy labels before downloading, a shorter label directly improves conversion — which improves ranking. See our guides for Apple and Google Play.
📊 Why Analytics Are Now an ASO Tool
Both platforms now rank apps based on what users do after they install. Optimizing metadata gets users to your listing. But if those users churn quickly, the algorithm demotes you.
You need analytics to close the loop:
- • Measure retention by day, platform, and country to understand which cohorts perform best
- • Find drop-off points where users abandon your app — these are the behaviors tanking your ranking
- • Discover conversion paths that lead to engaged users, then optimize your onboarding to push more users down those paths
- • Measure update impact — does each release improve or hurt retention?
Respectlytics provides automated drop-off detection and conversion path discovery — surfacing these insights without manual funnel configuration. For keyword research, RespectASO is a free, open-source tool that evaluates keyword popularity and difficulty across 30 countries.
📚 Related Reading
- → How to Research App Store Keywords for Free in 2026
- → Mobile App Metrics That Matter: Essential KPIs
- → Automated Drop-Off Detection: The Algorithm Explained
- → How We Auto-Discover Conversion Paths
Disclaimer: App store algorithms are proprietary and not publicly documented. The ranking factors described here are based on industry research, third-party analysis, and observed behavior. Apple and Google may change their algorithms at any time without notice.