In June 2025, the ASO community exploded with a claim that changed how many developers think about App Store screenshots: Apple is now reading the text in your screenshots and using it for search rankings.
If true, this would be a massive shift. Screenshot captions would no longer be just a conversion tool. They'd be a discovery tool. Every word on your screenshots would potentially influence whether users find your app in search results.
But is it actually true? We dug into the evidence, the expert opinions, and the controlled experiments to find out what's confirmed, what's speculation, and what you should actually do about it.
What happened in June 2025
Around June 5 to 9, 2025, ASO tools detected significant ranking turbulence in the Apple App Store. Appfigures recorded anomaly scores as high as +6, far above normal fluctuations. Apps were gaining and losing keyword rankings they'd held for months.
Appfigures concluded that Apple had begun indexing text from screenshot captions as a ranking signal. Their headline: "Screenshots are no longer just for conversion. They now influence discovery." They recommended placing high-contrast, bold text in the caption areas of screenshots.
SplitMetrics echoed this position, stating that screenshot captions are now "active ranking factors."
The ASO world took notice. Blog posts and Twitter threads spread the claim rapidly. Many developers started stuffing keywords into their screenshot text.
The evidence against screenshot text indexing
Not everyone was convinced. ConsultMyApp, an ASO agency, ran a controlled test to verify the claim.
The ConsultMyApp experiment
They analyzed 64 phrases that appeared in screenshot captions across 8 major iOS apps, including Audible, Libby, DoorDash, and Duolingo. For each phrase, they checked whether the app ranked for that exact keyword.
The results:
- 36 phrases did not rank at all
- 27 phrases ranked, but the ranking was fully explainable through existing metadata (app title, subtitle, or keyword field)
- 1 case (Audible) remained anomalous and couldn't be explained by metadata alone
Their conclusion: "If screenshot indexing does exist, it's not consistent, it's not confirmed, and it may depend on app strength, screenshot placement, or semantic keyword context."
In other words: out of 64 tests, only 1 showed behavior that couldn't be explained by traditional ranking factors. That's not strong evidence.
Apple's official position
Apple's developer documentation on App Store search lists exactly four fields that are indexed for search:
- App name (30 characters)
- Subtitle (30 characters)
- Keyword field (100 characters)
- Primary and secondary category
Screenshots are not mentioned. According to Phiture, one of the leading ASO agencies, Apple has directly denied that they use OCR to index screenshot text. AppTweak, another major ASO tool, echoed that position.
What probably happened
The June 2025 algorithm update was real. Rankings did shift significantly. But the most likely explanation is that Apple improved their semantic matching and keyword weighting algorithms. Apps that happened to have screenshot text matching certain keywords may have seen ranking changes, but correlation is not causation.
The theory that screenshot text is being indexed was a reasonable hypothesis that didn't survive controlled testing.
What about Google Play Store?
Google has some of the most advanced OCR and image recognition technology in the world (Google Vision API, Google Lens). If any app store were going to read screenshot text, you'd expect it to be Google.
But there's no credible evidence that Google Play extracts text from screenshots for search ranking.
AppTweak's 2026 Google Play ranking factors include:
- Metadata optimization (title, short description, long description)
- User engagement and retention
- Android Vitals (crash rate, ANR rate)
- Ratings and reviews
- Install volume
- Update frequency
- Localization
Screenshots are discussed only as a conversion factor, not a search ranking signal.
Google Play has a unique advantage over Apple: the full long description (up to 4,000 characters) is indexed for search. This gives developers far more keyword real estate than Apple's 100-character keyword field. Google also indexes user review text, meaning keywords that appear frequently in reviews can influence rankings.
The WWDC 2025 wildcard: AI-generated Tags
At WWDC 2025, Apple introduced a new feature: AI-generated Tags for App Store listings. These tags are created by large language models that analyze app metadata and surface features like "budget planner" or "offline map" as tappable chips in search results.
Here's the interesting part: Apple did not specify exactly what data the LLM analyzes. AppTweak noted that Apple "did not specify if only already indexed text metadata and category information would be determining factors, or if long descriptions, user reviews and/or text in screenshots could also play a role."
This is the one area where screenshot text indexing remains genuinely ambiguous. Apple's LLM might consider screenshot text as one of many signals when generating tags. Or it might not. We don't know.
What we do know is that these AI-generated tags are a new surface for discovery. If the LLM considers screenshot text even partially, having clear, descriptive captions could help your app get tagged with relevant features.
What this means for your screenshots
Even though screenshot text indexing is not confirmed, the practical advice from experts converges on a clear set of recommendations.
Do: Write meaningful, keyword-aware captions
Your screenshot captions should use language that your target users would use when searching for your type of app. Not because of OCR indexing, but because:
- It helps conversion. Clear, benefit-focused captions help users understand your app and decide to download. Conversion rate is a confirmed ranking factor on both stores.
- It's future-proof. If Apple's LLM does start considering screenshot text for Tags or ranking, you're already prepared.
- It demonstrates relevance. Screenshots that use the same language as your target audience feel more relevant and trustworthy.
Don't: Keyword-stuff your screenshots
Multiple experts warn against this. Keyword-stuffed screenshots "look desperate and convert poorly." If you cram unnatural keywords into your captions, you'll hurt your conversion rate, which actually does affect rankings.
Bad: "Best Budget Finance Money Tracker Planner App Free"
Good: "Track Your Budget Effortlessly"
The second version is natural, benefit-focused, and happens to include relevant keywords (budget, track). The first version looks like spam.
Do: Focus on confirmed ranking factors
For Apple, your primary keyword real estate is:
| Field | Character limit | Impact |
|---|---|---|
| App name | 30 characters | Highest |
| Subtitle | 30 characters | High |
| Keyword field | 100 characters | High |
| Category | N/A | Medium |
For Google Play:
| Field | Character limit | Impact |
|---|---|---|
| App title | 30 characters | Highest |
| Short description | 80 characters | High |
| Long description | 4,000 characters | High |
| Category | N/A | Medium |
Optimize these first. They are confirmed, well-documented ranking signals.
Do: Optimize screenshots for conversion
Whether or not screenshot text is indexed, your screenshots directly affect your conversion rate. And conversion rate is a confirmed ranking factor on both stores. Apps with higher conversion rates tend to rank better because the algorithm interprets high conversion as a signal of quality and relevance.
This means that well-designed screenshots can improve your rankings indirectly by improving your conversion rate. The data backs this up: developers who invest in professional screenshots regularly report conversion rate improvements of 20 to 35%.
Do: Localize your screenshots
Localized screenshots improve conversion rates in international markets by 20 to 40%. Since conversion rate affects rankings, this can improve your visibility in local markets too.
Both Apple and Google weight localized metadata in local search results. Having localized screenshots (even if the text isn't directly indexed) signals to the algorithm that your app is relevant for that market.
The expert scorecard
Here's where the major ASO tools and agencies stand on screenshot text indexing:
| Source | Position |
|---|---|
| Appfigures | Claims Apple indexes screenshot captions (strongest advocate) |
| SplitMetrics | States captions are "active ranking factors" |
| ConsultMyApp | Tested 64 phrases, found no strong evidence |
| AppTweak | Does not confirm; echoed Apple's denial |
| Phiture | Reports Apple denied it; recommends keyword-aware captions anyway |
| Apple (official) | Documentation does not list screenshots as a search factor |
The experts are split, but the controlled evidence leans toward "not confirmed." The safest approach is to optimize screenshot text for conversion (which is confirmed to matter) rather than for keyword ranking (which is unproven).
Practical checklist for screenshot text
Based on everything we know, here's what to do with your screenshot text:
- Write benefit-focused headlines. "Track Every Workout" beats "Exercise Logging Feature."
- Use natural language that matches user search terms. If users search for "habit tracker," your caption could say "Build Better Habits" rather than "Recurring Task Manager."
- Keep it short. 5 to 7 words per headline. One idea per screenshot.
- Don't keyword-stuff. It hurts conversion, which is the metric that actually matters.
- Localize. Translate captions into the languages your users speak.
- A/B test. Use Apple's Product Page Optimization to test different caption approaches and measure conversion impact.
- Update regularly. Top apps update their screenshots 2 to 4 times per year.
If you want to create or update your screenshots quickly, Lomio lets you design a full set with device frames, text captions, and multi-language support in under 5 minutes. Here's how to get started.
Frequently asked questions
Should I change my screenshot text to include more keywords? Only if it improves clarity and conversion. Don't sacrifice good marketing copy for keyword insertion. Write for users first, search second.
Will Apple eventually confirm screenshot text indexing? It's possible. The WWDC 2025 AI Tags feature suggests Apple is moving toward more AI-driven analysis of app listings. But until they confirm it, don't restructure your entire screenshot strategy around an unproven theory.
Does Google Play read text in screenshots? There is no evidence of this. Google Play indexes your title, short description, long description, and reviews. Use those for keyword optimization.
What's more important: screenshot text for SEO or for conversion? Conversion. A user who sees your app but doesn't download is a lost opportunity. Conversion rate is a confirmed ranking factor, so improving it helps both downloads and rankings.
How often should I update my screenshot captions? Whenever you update your screenshots. At minimum, review them every quarter. If you launch a major new feature, update the relevant screenshot to highlight it.
The bottom line
The claim that app stores read text in screenshots via OCR and use it for search rankings is widely discussed but not reliably confirmed. The June 2025 Apple algorithm update sparked the theory, but controlled testing failed to validate it, Apple reportedly denied it, and their official documentation doesn't support it.
What is confirmed: screenshots directly affect conversion rate, and conversion rate affects rankings. So the best strategy is the same whether or not OCR indexing exists: write clear, benefit-focused caption text that naturally includes relevant terms, and focus on making your screenshots convert.
Download Lomio to create screenshot sets with clear, conversion-optimized captions. Check out our screenshot tips guide and Lomio vs. Figma comparison for more.