# Find Mobile App Crash and Billing Complaints

**Use case:** 

Analyze App Store and Google Play complaints to rank crash, billing, support, and usability churn reasons with version evidence.

## Input

```json
{
  "reviews": [
    {
      "id": "r-1",
      "review": "Since version 4.1 the app crashes every time I open a saved project.",
      "score": 1,
      "date": "2026-08-01",
      "appVersion": "4.1.0",
      "appName": "Northstar Notes",
      "platform": "App Store"
    },
    {
      "reviewId": "r-2",
      "content": "My annual subscription renewed without warning and support never replied.",
      "stars": 1,
      "createdAt": "2026-07-28",
      "product_name": "Northstar Notes",
      "store": "Google Play"
    },
    {
      "reviewId": "r-3",
      "content": "Keeps crashing after the latest update. I am uninstalling.",
      "stars": 1,
      "createdAt": "2026-07-31",
      "app_version": "4.1.0",
      "product_name": "Northstar Notes",
      "store": "Google Play"
    }
  ],
  "maxReviews": 500,
  "negativeRatingThreshold": 3,
  "recentWindowDays": 180,
  "maxEvidencePerReason": 5,
  "fieldMap": {},
  "includeNormalizedReview": true,
  "includeOriginalReview": false
}
```

## Output

```json
{
  "recordType": {
    "label": "Record type",
    "format": "text"
  },
  "appName": {
    "label": "App",
    "format": "text"
  },
  "reasonLabel": {
    "label": "Churn reason",
    "format": "text"
  },
  "version": {
    "label": "Review version",
    "format": "text"
  },
  "rating": {
    "label": "Rating",
    "format": "number"
  },
  "severity": {
    "label": "Severity",
    "format": "number"
  },
  "reviewCount": {
    "label": "Reviews",
    "format": "number"
  },
  "topAffectedVersion": {
    "label": "Top version",
    "format": "text"
  },
  "priorityScore": {
    "label": "Priority",
    "format": "number"
  },
  "confidence": {
    "label": "Confidence",
    "format": "number"
  },
  "recommendedFix": {
    "label": "Recommended fix",
    "format": "text"
  },
  "evidence": {
    "label": "Evidence",
    "format": "object"
  }
}
```

## About this Actor

This example demonstrates how to use [App Churn Reason Miner](https://apify.com/gifted_wagon/app-churn-reason-miner) with a specific input configuration. Visit the [Actor detail page](https://apify.com/gifted_wagon/app-churn-reason-miner) to learn more, explore other use cases, and run it yourself.


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This Task's input is already configured above — use it as-is rather than inventing a new one.

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For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/gifted_wagon/app-churn-reason-miner.md

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).