Batch compress shrinks many videos in one go with the same profile. It is the fastest way to free up storage.

Start a batch

On the home screen tap Batch compress ("Compress many videos in one go"). In the video picker you can also tap "Pick several videos and compress them with one profile".
Select the videos. Tip: allow access to all videos to see their sizes and sort the largest first.
Under Profile for every video, choose Smart (recommended), Social media, Ultra saver or Original resolution.
Tap Add videos if you want more, then tap Compress all.

While it runs

You see the progress of each video and how much space has been saved so far. You can leave the app; a notification shows the progress.

To stop, tap stop and confirm Stop the batch? Videos that are already compressed are kept; the rest are skipped.

Tap Open compressed videos to see the results. If a video could not be compressed, try it again on its own with another profile.

Unlimited batch compression is part of PRO. Screen recordings and 4K videos usually shrink the most.