Frequently Asked Questions

Open Cool Cleaner and grant full photo library access. The app uses AI to automatically scan and group duplicate and similar photos. Review the results, select the copies you want to remove, and tap Clean.

Deleted photos go to your Recently Deleted album for 30 days, so you can recover them if needed.

Cool Cleaner helps free up iPhone storage in multiple ways:

• Remove duplicate and similar photos
• Delete large videos you no longer need
• Compress photos and videos to smaller file sizes
• Clean up expired calendar events
• Merge duplicate contacts

Most users recover several gigabytes of storage space.

Cool Cleaner uses multiple AI algorithms working together: perceptual hashing to detect visually similar images, an on-device MobileCLIP model for semantic understanding of photo content, and metadata comparison for exact duplicates.

This multi-layered approach catches duplicates that simple file comparison would miss.

Yes. All photos and videos deleted through Cool Cleaner are moved to your iPhone's Recently Deleted album, where they remain for 30 days. During this period you can restore any photo from the Photos app.

Cool Cleaner offers three video compression presets:

• HD — 1080p / 8Mbps, maintains high visual quality
• SD — 720p / 4Mbps, good for everyday viewing
• Compact — 480p / 2Mbps, maximum space savings

All metadata including date and location are preserved. If the compressed file would be larger than the original, the app automatically skips it.

No. Cool Cleaner preserves all photo metadata (EXIF) including date taken, GPS location, and camera settings during compression.

The app offers three quality levels — High (~30% reduction), Medium (~50%), and Small (~70%) — so you can balance between quality and space savings.

Yes, Cool Cleaner is completely safe. All photo scanning and AI analysis happens entirely on your device. Your photos and videos are never uploaded to any server.

The app uses on-device machine learning models to detect duplicates and similar content without an internet connection.

The AI scanning engine needs to analyze all photos in your library to accurately identify duplicates and similar groups. With limited access, the scan results would be incomplete and many duplicates would be missed.

Your photo data is processed locally and never leaves your device.

Yes. Most core features work offline including photo cleaning, video management, media compression, contact management, calendar cleanup, and the private vault.

Internet is only needed for speed testing, subscription purchases, and loading ads for free users.

Cool Cleaner offers both free and premium options. Free users can scan unlimited photos and use all cleaning features by watching a short video ad before each action.

Pro subscribers get unlimited ad-free access to all features. A 3-day free trial is available for the weekly plan.

Subscriptions are managed through Apple:

1. Open iPhone Settings
2. Tap your Apple ID at the top
3. Select Subscriptions
4. Find Cool Cleaner and tap Cancel

You'll continue to have access until the end of your current billing period.

Cool Cleaner supports iPhone and iPad running iOS 17.0 or later. The app is available in 10 languages including English, Chinese, Japanese, Korean, French, German, Italian, Spanish, and Portuguese.