Frequently asked questions

Yes. The Free plan lets you scan your whole disk, browse it in the Explorer and move files to the Trash – with no time limit and no account. Smart Scan, permanent deleting, last modified dates, highlighting of unused files and scanning a single folder are part of PRO and MAX. See Pricing.

Both unlock every feature. A PRO license works on 1 device, a MAX license works on up to 3 devices. You can pay monthly or once for a lifetime license.

macOS 12 or later on Apple silicon and Intel Macs, and Windows 10 or 11 (64-bit).

English, Czech, Chinese, Hindi, Spanish, French, Portuguese, Russian, Japanese, German and Indonesian. The app picks your system language on first launch and you can change it in Settings.

Yes. Pick the disk from the drive menu in the explorer, or choose any folder with the Folder button.

App and browser caches, logs and crash reports, the Trash, developer caches (npm, Gradle, Cargo, Xcode and others), Mail attachments, system caches, installers in Downloads and local device backups.

Caches are temporary data that apps recreate when needed. An app may start a little slower the first time after cleaning. For the best result, quit the apps whose caches you are about to remove.

System caches, installers, device backups and large AI models can be useful or hard to get back, so SiftClean lists them but leaves the decision to you.

That’s normal. Apps keep caches to work faster. Running Smart Scan every few weeks is usually enough.

Items deleted permanently can’t be restored. If you want a safety net, choose “Move to Trash” in Settings – then you can restore items from the Trash or Recycle Bin.

They are skipped. SiftClean deletes everything else and tells you how many files were left in place.

System folders, the root of each disk and your main user folders are protected. Every deletion is confirmed first unless you turn confirmations off.

Yes. Long deletions show their progress and a Cancel button. What has already been deleted stays deleted.

macOS hides some folders from apps unless you grant Full Disk Access. Without it SiftClean can’t measure or clean those folders. You grant it in System Settings → Privacy & Security → Full Disk Access.

With administrator rights SiftClean reads the NTFS file table directly, which makes a full scan many times faster, and it can clean system-wide temporary files.

The current builds are not signed with a developer certificate yet, so macOS and Windows show a warning the first time you open the app.

No. Scanning and deleting happen entirely on your computer. File names, paths and contents never leave it.

If you allow it, the app sends counts such as how many times it was opened and how much space was freed. See the Privacy Policy for the full list.

Open Settings and switch off “Share analytics”. You can also turn it off during the first-run setup.