# VisionKit Image Analysis Analyze VisionKit analysis requests on images. ## Overview The data in this report shows histograms for the quantity of information found when performing a VisionKit analysis request on an image. The information includes the length of text, the number of visual lookup elements, and the time to parse the machine-readable codes in the image. - Territories: Worldwide - Platforms: iOS, iPadOS. For more information about iOS and iPadOS, see the Platforms section in [Data Completeness and Corrections](/documentation/Analytics-Reports/data-completeness-corrections). - Availability: - Daily: Every day. - History: On request, data is available beginning with iOS 17.4 and iPadOS 17.4. - Completeness: Data from devices that contribute to this report can arrive as late as 8 days after the date it generates on device. You can download recent data daily, but it might be incomplete, and data updates incrementally daily, until all late-arriving events are available. - Privacy: - Includes data from users who have opted to share their data with Apple and developers. - Individual rows will only appear if they have a value of 5 or more. - Data Context: You can analyze your data with additional context by comparing it with the data in the [App Sessions Context](/documentation/Analytics-Reports/app-sessions-context) report, which provides a count of unique devices that use your app on a specific day. For example, if your app performed an action detailed in this report on 10 unique devices on a specific day, and the App Sessions Context report shows there were 100 unique devices running your app that day, then you can approximate that 10% of the devices running your app performed that action. ## Report Fields |Report Field |Description |Data Type| |-------------------------------------|----------------------------------------------------|---------| |Count |Number of times the event occurred |`integer`| |Territory |Country or region in which the event occurred |`string` | |Date |Date when the event occurred |`string` | |Platform |OS version on the device on which the event occurred|`string` | |Device |Type of device on which the event occurred |`string` | |Build |Build of device on which event occurred |`string` | |Unique Devices |The count of unique devices |`integer`| |Release Type |Type of software release |`string` | |Had Error |Whether there was an error |`boolean`| |Machine-Readable Codes Parse Duration|Time in seconds to parse machine-readable codes |`float` | |Text Length |Character length of the detected text |`integer`| |Visual Lookup Count |Number of visual lookup elements found |`integer`| ## Glossary |Dimension |Value|Definition | |-------------------------------------|-----|---------------------------------------| |Machine-Readable Codes Parse Duration|0 |Represents range from -Infinity to 0 | |Machine-Readable Codes Parse Duration|1 |Represents range from 0 to 0.2 | |Machine-Readable Codes Parse Duration|2 |Represents range from 0.2 to 0.4 | |Machine-Readable Codes Parse Duration|3 |Represents range from 0.4 to 0.6 | |Machine-Readable Codes Parse Duration|4 |Represents range from 0.6 to 0.8 | |Machine-Readable Codes Parse Duration|5 |Represents range from 0.8 to 1 | |Machine-Readable Codes Parse Duration|6 |Represents range from 1 to 1.2 | |Machine-Readable Codes Parse Duration|7 |Represents range from 1.2 to 1.4 | |Machine-Readable Codes Parse Duration|8 |Represents range from 1.4 to 1.6 | |Machine-Readable Codes Parse Duration|9 |Represents range from 1.6 to 1.8 | |Machine-Readable Codes Parse Duration|10 |Represents range from 1.8 to 2 | |Machine-Readable Codes Parse Duration|11 |Represents range from 2 to +Infinity | |Text Length |0 |Represents range from -Infinity to 0 | |Text Length |1 |Represents range from 0 to 10 | |Text Length |2 |Represents range from 10 to 20 | |Text Length |3 |Represents range from 20 to 50 | |Text Length |4 |Represents range from 50 to 100 | |Text Length |5 |Represents range from 100 to 200 | |Text Length |6 |Represents range from 200 to 400 | |Text Length |7 |Represents range from 400 to 800 | |Text Length |8 |Represents range from 800 to 1000 | |Text Length |9 |Represents range from 1000 to 1500 | |Text Length |10 |Represents range from 1500 to +Infinity| |Visual Lookup Count |0 |Represents range from -Infinity to 0 | |Visual Lookup Count |1 |Represents range from 0 to 1 | |Visual Lookup Count |2 |Represents range from 1 to 2 | |Visual Lookup Count |3 |Represents range from 2 to 3 | |Visual Lookup Count |4 |Represents range from 3 to 4 | |Visual Lookup Count |5 |Represents range from 4 to 5 | |Visual Lookup Count |6 |Represents range from 5 to 6 | |Visual Lookup Count |7 |Represents range from 6 to 7 | |Visual Lookup Count |8 |Represents range from 7 to 8 | |Visual Lookup Count |9 |Represents range from 8 to 9 | |Visual Lookup Count |10 |Represents range from 9 to 10 | |Visual Lookup Count |11 |Represents range from 10 to +Infinity | --- Copyright © 2026 Apple Inc. 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