Want to move photos from your iPhone to free up space? The Photo Space app was designed to help.

Need more storage space on your iPhone? Here’s an app that helps you move your photos to third-party cloud servers so you can free up space on your device.

Name: Avast Photo Space – ^cloud ^photo ^storage

What it does: The Photo Space app takes your original high-quality, heavily weighted photos and, with your permission, uploads them to cloud services Dropbox or Google Drive (you will need accounts for those in advance). Then it optimizes your photos so you still have a lower-weighted copy on your phone. After they are uploaded and optimized, it asks your permission to delete the original photos from your phone, releasing the storage space.

Available: In the App Store, requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.

Cost: Free

What’s hot: It works. I transferred several hundred photos and plan to keep using it until I finish my, ahem, 8,000-plus photo backlog. I was desperate to free up storage on my iPhone and have tried other methods, but this app works best for me. It needs Wi-Fi to operate, but if it disconnects, Phone Space picks up where it left off after the connection is restored. The app’s communication function is quite strong. At every step in the process it would notify me about what it was going to do next and ask for approval. I liked that a lot.

What’s not: If you have lots of photos, you’re in for a long process. The Photo Space app would occasionally crash, but I stuck with it. I would sometimes delete and reload the app to move forward. It was a little clunky at first, but it had lengthy periods when it operated smoothly.

—Jen Leo