This wikiHow teaches you how to rotate a video on the Google Photos app using an iPhone or iPad.
Steps
Step 1. Open the Google Photos application
The icon looks like a colored pinwheel.
If you don't have the Google Photos app, you can download it from the App Store and sign in with your Google account
Step 2. Select the video you want to rotate
You can tap the "Photos" tab
at the bottom of the screen and then tap the video you want to rotate.
It is not possible to rotate the videos you have made using the Google Photos assistant
Step 3. Tap
Tap the icon depicting three horizontal sliders. It is located at the bottom of the screen, to the right of the "Share" icon.
Step 4. Tap Rotate
It's a gray button that appears at the bottom of the screen. The video will be rotated 90 ° counterclockwise.
You can tap this button several times to further rotate the video
Step 5. Tap Save Copy in the top right corner
This will create a copy of the video with its new rotation.
