macOS User Guide
- Welcome
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- Work across devices using Continuity
- Use iPhone as a webcam
- Use iPhone with Desk View
- Stream audio and video with AirPlay
- Use one keyboard and mouse to control Mac and iPad
- Hand off between devices
- Unlock your Mac with Apple Watch
- Make and receive phone calls on your Mac
- Sync music, books, and more between devices
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- What is Family Sharing?
- Set up Family Sharing
- Add a user or group
- Set up Screen Time for a child
- Share purchases with your family
- Watch and listen together with SharePlay
- Share a Photo Library
- Collaborate on projects
- Find content shared with you
- Find your family and friends
- Play games with your friends
- Resources for your Mac
- Resources for your Apple devices
- Copyright
Allow apps to use your photos
Some apps and websites can use your photo library to provide you with services and features. For example, an app might use your photo library to help you set up features for a photo editing project. See Control access to your photos.
To authorize an app or a website to use information from your photo library, click OK in the dialog. If you don’t want to authorize the use of your photo library, click Don’t Allow.
If you allow third-party apps or websites to use your photo library information, any information they collect is governed by their terms and privacy policies. It’s recommended that you learn about the privacy practices of those parties.
You can review and change which apps and websites can use your photo library in Privacy & Security settings.
Choose Apple menu 
in the sidebar, then click Photos on the right. (You may need to scroll down.)