<!--
{
  "availability" : [
    "Apple Ads Platform API: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Apple-Ads-Platform-API",
  "identifier" : "/documentation/Apple-Ads-Platform-API/ImpressionShareQueryResponse",
  "metadataVersion" : "0.1.0",
  "role" : "Object",
  "symbol" : {
    "kind" : "Object",
    "modules" : [
      "Apple Ads Platform API"
    ],
    "preciseIdentifier" : "data:apple-ads-platform-api:ImpressionShareQueryResponse"
  },
  "title" : "ImpressionShareQueryResponse"
}
-->

# ImpressionShareQueryResponse

The impression share query endpoint returns this response wrapper.

```
object ImpressionShareQueryResponse
```

## Response Structure

### Top-Level Fields

The `ImpressionShareResultContainer` wrapping `result` exposes a single field.

|Field |Type |Description                                                                                                                                                        |
|------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|`rows`|array|Array of <doc://com.apple.apple-ads-platform-api/documentation/Apple-Ads-Platform-API/ImpressionShareRow> objects, one per date + search term + country combination|

Each [`ImpressionShareRow`](/documentation/Apple-Ads-Platform-API/ImpressionShareRow) in `rows` carries the following fields.

|Field                 |Type   |Description                                                                                    |
|----------------------|-------|-----------------------------------------------------------------------------------------------|
|`day`                 |string |Date (`YYYY-MM-DD`). Present when granularity is `DAILY`.                                      |
|`week`                |string |Week start date, Sunday (`YYYY-MM-DD`). Present when granularity is `WEEKLY_SUN_SAT`.          |
|`appName`             |string |Display name of the promoted app.                                                              |
|`promotedObjectId`    |string |Adam ID of the promoted app.                                                                   |
|`countryOrRegion`     |string |ISO 3166-1 alpha-2 country or region code (for example, `US`, `GB`).                           |
|`searchTerm`          |string |The search term. Suppressed for terms with fewer than 10 impressions in the aggregation period.|
|`lowImpressionShare`  |number |Lower bound of impression share. See encoding table below.                                     |
|`highImpressionShare` |number |Upper bound of impression share. See encoding table below.                                     |
|`rank`                |integer|App’s impression share rank for this search term and country. `1` = highest share.             |
|`searchPopularity1to5`|integer|Relative search volume on a 1–5 scale. `5` = most popular.                                     |

### Impression Share Encoding

The `lowImpressionShare` and `highImpressionShare` fields use a tiered encoding. They are not always a range:

|Impression Share|`lowImpressionShare`     |`highImpressionShare`|
|----------------|-------------------------|---------------------|
|0%              |`0`                      |`0`                  |
|1% – 90%        |`x` (for example, `0.23`)|`x` (same value)     |
|91% – 100%      |`0.91`                   |`1`                  |

For 1–90%, both fields carry the same single-digit value. The 91–100% bucket retains a range because accuracy of the estimated metric declines near full market saturation, and reporting a precise value there would overstate confidence.

**Parsing tip:** `lowImpressionShare == highImpressionShare` and value < 0.91 → precise single-digit percentage. `highImpressionShare == 1` → app has >90% impression share.

The `pagination` object included in the response reports the following.

|Field       |Type   |Description                             |
|------------|-------|----------------------------------------|
|`totalCount`|integer|Total number of rows matching the query |
|`offset`    |integer|Current page offset                     |
|`pageSize`  |integer|Number of rows returned in this response|

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)