How App Store Ratings Actually Affect Rankings (And Where They Don't)
A 4.9-star app with 400 reviews can outrank a 4.7-star app with 2 million reviews. That is not a hypothetical — it is what the top meditation apps on iOS look like right now. Across the top 10 meditation apps tracked by Sonar on iOS, rating ranges from 4.67 (Aura) to 4.92 (Waking Up), but review count varies dramatically — from 4,015 (Medito) to nearly 2 million (Calm). Insight Timer leads with a 4.90 rating and 439K reviews, earning an ASO score of 98/100 from Sonar — with its Rating check earning a perfect 15/15. [source: Sonar meditation app index, /tmp/sonar-meditation-apps.json]
App store ratings matter. But they do not matter the way most developers assume. This article breaks down what Apple and Google have disclosed about how ratings factor into search rankings, how they interact with other ASO signals, and what the data says about the thresholds that actually make a difference.
What Apple and Google Have Said About Ratings
Neither Apple nor Google publishes an exact ranking algorithm. But both have been explicit that ratings and reviews are ranking signals.
Apple's App Store documentation states that "ratings, reviews, and the number of downloads" influence search results [source: developer.apple.com/app-store/search/]. At WWDC 2017, Apple also confirmed that the current-version rating is weighted more heavily than lifetime rating [source: developer.apple.com/videos/play/wwdc2017/302/]. This is why Apple introduced the option to reset ratings with each new version — giving developers a way to recover from early missteps.
Google's Play Console documentation similarly notes that "high-quality ratings and reviews" are among the factors that determine app visibility in Google Play search results and recommendations [source: support.google.com/googleplay/android-developer/answer/9898842]. Google also uses review sentiment analysis — not just the star count — to inform quality signals [source: android-developers.googleblog.com/2019/05/whats-new-in-google-play-at-io-2019.html].
The key takeaway: both stores confirm ratings are inputs. Neither store says ratings are the dominant input.
The Rating Threshold That Matters Most
If your app is below 4.0 stars, you have a conversion problem before you have a ranking problem. Research from Apptentive found that 79% of users check an app's rating before downloading, and the average consumer requires a minimum 3.8 stars to consider a download [source: apptentive.com/blog/2020/01/15/app-ratings-and-reviews-guide/].
Here is where the top 10 meditation apps on iOS sit right now:
| App | Rating | Reviews | Rank |
|---|---|---|---|
| Insight Timer | 4.90 | 439,530 | 1 |
| Calm | 4.77 | 1,953,560 | 2 |
| Headspace | 4.84 | 974,036 | 3 |
| Balance | 4.88 | 119,361 | 4 |
| Medito | 4.90 | 4,015 | 5 |
| Waking Up | 4.92 | 42,356 | 6 |
| Open | 4.88 | 16,283 | 7 |
| Happier Meditation | 4.82 | 142,627 | 8 |
| Breethe | 4.74 | 70,679 | 9 |
| Aura | 4.67 | 34,923 | 10 |
[source: Sonar meditation app index, /tmp/sonar-meditation-apps.json]
Every single app in the top 10 is above 4.5 stars. The floor is 4.67 (Aura, ranked 10th). The spread between best and worst is just 0.25 stars. Once you clear the ~4.5 threshold in a competitive category, the marginal ranking value of each additional tenth of a star appears to shrink. Other signals — keyword relevance, download velocity, metadata optimization — take over.
Notice Medito: 4.90 stars with only 4,015 reviews, ranked 5th. And Calm: 4.77 stars with nearly 2 million reviews, ranked 2nd. Review volume alone does not determine position. Neither does star rating alone. The algorithm blends both with many other factors.
Star Ratings vs. Review Volume: Which Weighs More?
There is no public formula, but the data suggests a pattern: star rating sets your floor; review volume amplifies your ceiling.
An app with a 3.5-star rating and 500,000 reviews will not outrank a 4.8-star app with 10,000 reviews in the same keyword space, all else being equal. The low rating suppresses conversion rate, which in turn suppresses install velocity, which feeds back into lower rankings. It is a compounding effect.
But above the 4.5 threshold, volume starts to carry more weight for a different reason: social proof. A 4.9-star app with 40 reviews looks different to users than a 4.8-star app with 100,000 reviews. The latter converts better on the product page, and higher conversion rates send positive signals to the ranking algorithm.
Apple confirmed during WWDC 2017 that both rating value and rating count contribute to search ranking relevance [source: developer.apple.com/videos/play/wwdc2017/302/]. Google's ranking documentation references "high-quality ratings and reviews," implying both quality (star value) and engagement (volume) matter [source: support.google.com/googleplay/android-developer/answer/9898842].
For a deeper look at what to measure and how to track improvement, see ASO KPIs: What to Track and Why.
Why Ratings Alone Cannot Carry Your ASO
Sonar's ASO score breakdown shows that Calm — despite 1.95 million reviews and a 4.77 rating that earns 15/15 on the Rating check — scores only 78/100 overall because its single-word title underperforms on Title Length (4/15) and Title Keywords (1/10). Ratings alone don't compensate for weak metadata. [source: Sonar ASO score for Calm, /tmp/sonar-calm-aso.json]
Compare that with Insight Timer. Its title, "Insight Timer: Meditate, Sleep," earns a 15/15 on Title Length and 10/10 on Title Keywords. Combined with its 4.90 rating and 439K reviews, it earns a 98/100 ASO score from Sonar. [source: Sonar ASO score for Insight Timer, /tmp/sonar-insight-aso.json]
The difference is 20 points — entirely driven by metadata, not ratings. Both apps score perfectly on the Rating check. Both have strong review counts. But Insight Timer fills its title with keywords that match what users search for, while "Calm" is a single brand word.
This pattern holds across categories. A high rating is necessary but not sufficient. You also need keyword-rich titles (see iOS App Title Length: What Fits, What Gets Cut, and How to Use Every Character), well-structured descriptions, quality screenshots, and regular updates. All of these factors feed into how stores evaluate your app. An ASO audit helps identify which signals are dragging down an otherwise strong listing.
How Ratings Differ Between iOS and Google Play
App store ratings carry different competitive weight depending on the platform. Sonar's keyword index rates "app store ratings" at difficulty 33 on iOS with an Apple popularity score of 5 — while on Google Play, difficulty jumps to 91 with popularity 54, suggesting Android users search for this term far more frequently. [source: Sonar keyword index, /tmp/sonar-keyword-ios.json and /tmp/sonar-keyword-android.json]
The structural differences between platforms also shape how ratings affect ranking:
- Users can rate without leaving a written review (introduced in iOS 11)
- Developers can use
SKStoreReviewControllerto prompt ratings in-app, limited to three prompts per 365-day period per device [source: developer.apple.com/documentation/storekit/skstorereviewcontroller] - Developers can choose to reset ratings with each new version
- Current-version rating is weighted more heavily [source: developer.apple.com/videos/play/wwdc2017/302/]
- Google revised its rating calculation in 2019 to weight recent reviews more heavily [source: android-developers.googleblog.com/2019/08/google-play-updates-for-ratings-reviews.html]
- Google Play uses a Bayesian average approach, meaning apps with few reviews get pulled toward the mean [source: android-developers.googleblog.com/2019/08/google-play-updates-for-ratings-reviews.html]
- Google's In-App Review API allows prompts but Google controls when the dialog appears [source: developer.android.com/guide/playcore/in-app-review]
- Review replies from developers are visible on the listing and can influence sentiment
For more on how ASO strategy changes across platforms, see iOS App Store vs Google Play: How ASO Differs Between Platforms.
Practical Ways to Improve Your App Store Ratings
Knowing that ratings are a ranking signal is step one. Moving the number is step two. Here are approaches grounded in what the stores actually allow.
Time Your Rating Prompts Correctly
The single highest-leverage action is prompting users at the right moment. Ask after a positive event — a completed workout, a saved file, a streak milestone — not after a crash or during onboarding.
On iOS, SKStoreReviewController.requestReview() is the only sanctioned prompt method. Apple limits it to three appearances per app per year per device, and Apple controls whether the dialog actually shows [source: developer.apple.com/documentation/storekit/skstorereviewcontroller]. On Android, Google's In-App Review API similarly controls display timing [source: developer.android.com/guide/playcore/in-app-review].
For a complete playbook on review collection, see How to Get More App Reviews (Without Being Annoying).
Respond to Negative Reviews
On Google Play, developer responses to reviews are public and indexed. A thoughtful response to a 1-star review can prompt the user to revise their rating — Google explicitly notes that users can update their review after receiving a response [source: support.google.com/googleplay/android-developer/answer/138230].
On iOS, developer responses have been available since iOS 10.3 [source: developer.apple.com/app-store/responding-to-reviews/]. While Apple does not confirm that responses affect ranking directly, they do affect conversion. A product page where the developer visibly engages with feedback converts better than one with unanswered complaints.
Fix the Issues That Drive Low Ratings
This sounds obvious, but it is the most underused strategy. Pull your 1-star and 2-star reviews. Categorize the complaints. If 40% mention crashes on a specific device, fixing that crash will improve your rating faster than any prompt strategy.
Google Play Console surfaces review topics and sentiment trends automatically [source: support.google.com/googleplay/android-developer/answer/138230]. App Store Connect offers a similar (though less granular) review breakdown. Use these tools to prioritize bug fixes that will have the highest impact on rating recovery.
Use Version Resets Strategically (iOS Only)
iOS lets you reset your star rating when you ship a new version. This can help if your lifetime rating is dragged down by bugs you have already fixed. But it is a double-edged sword — resetting means you start from zero visible ratings, which can hurt conversion rates until enough new ratings accumulate.
The general recommendation: only reset if your current-version rating is significantly higher than your lifetime average and you have enough install volume to rebuild quickly.
The Feedback Loop: Ratings, Conversions, and Rankings
Ratings do not operate in isolation. They sit inside a feedback loop:
- Higher rating leads to better conversion rate on your product page
- Higher conversion rate means more installs per impression
- More installs signal relevance to the ranking algorithm
- Higher ranking generates more impressions
- More impressions at a steady conversion rate means more installs and more ratings
This is why a small rating improvement — say from 4.2 to 4.5 — can produce outsized ranking gains. You are not just improving one metric; you are accelerating the entire loop. StoreMaven research found that moving from a 3-star to a 4-star rating can increase conversion rates by 89%, while the jump from 4 to 5 stars adds another 25% [source: storemaven.com/academy/app-store-ratings-and-reviews/].
The inverse is also true. A rating drop from 4.5 to 4.0 can trigger a decline in conversion, which lowers install velocity, which lowers ranking, which further reduces impressions. The loop works in both directions.
What Ratings Cannot Do
For all their importance, ratings have clear limits as a ranking lever:
- They cannot fix bad keyword targeting. If your metadata does not contain the terms users search for, a 5.0 rating will not make you visible for those queries. Keywords are indexed from titles, subtitles (iOS), short descriptions (Google Play), and keyword fields — not from reviews. Learn more in App Store Keywords: How to Find and Choose the Right Ones.
- They cannot substitute for download velocity. A niche app with a 4.9 rating and 200 installs per month will not outrank a 4.5-star app with 50,000 monthly installs for a competitive keyword.
- They cannot overcome category mismatch. If your app is in the wrong primary category, your ratings help you compete against the wrong set of apps.
Ratings are one signal in a multi-signal system. They amplify other signals when they are strong and suppress them when they are weak.
FAQ
How many stars do I need to rank well in the App Store?
There is no universal minimum, but the data consistently shows top-ranked apps cluster above 4.5 stars. In the meditation category on iOS, every app in the top 10 sits between 4.67 and 4.92 stars [source: Sonar meditation app index]. Below 4.0, conversion rates drop significantly — Apptentive found the average consumer requires at least 3.8 stars to consider downloading [source: apptentive.com/blog/2020/01/15/app-ratings-and-reviews-guide/]. Aim for 4.5 or higher to remain competitive in most categories.
Do review counts matter more than star ratings?
Both matter, but they serve different functions. Star ratings act as a quality threshold — below a certain level, users simply will not download your app. Review volume provides social proof and signals sustained engagement to the algorithm. An app with a 4.9 rating and 40 reviews may rank for niche keywords, but it will struggle against a 4.8-star competitor with 100,000 reviews for high-traffic terms.
Should I reset my App Store ratings when I release a new version?
Only if your current-version rating is substantially higher than your lifetime average and your install volume is large enough to rebuild ratings quickly. Resetting means new visitors see zero stars until fresh ratings come in, which can hurt your conversion rate in the short term [source: developer.apple.com/app-store/ratings-and-reviews/]. For most apps, it is better to let positive new ratings gradually pull up the lifetime average.
Do Google Play and the iOS App Store weight ratings differently?
Yes. Google Play revised its rating calculation in August 2019 to weight recent reviews more heavily and uses a Bayesian approach that pulls low-volume apps toward the category mean [source: android-developers.googleblog.com/2019/08/google-play-updates-for-ratings-reviews.html]. Apple weights current-version ratings more but does not use the same Bayesian normalization. The practical result is that rating momentum — the trend direction of your recent reviews — matters more on Google Play than a high lifetime average.
Can I pay for or incentivize app reviews?
No. Both Apple and Google explicitly prohibit incentivized reviews. Apple's App Store Review Guidelines (Section 5.6.3) ban manipulated ratings or reviews [source: developer.apple.com/app-store/review/guidelines/#legal]. Google's Developer Program Policy similarly forbids incentivized ratings [source: support.google.com/googleplay/android-developer/answer/9899234]. Violations can result in app removal. The only sanctioned approach is using each platform's native review prompt APIs and delivering a product experience worth rating highly.
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