Getting started · Downloading and installing
How do I reinstall Storage Studio?
Short answer: Download it again from storagestudio.us and drag it into Applications over the old copy; your moves, settings and licence are kept. To repair just the background service, use More → Set Up / Reinstall….
Download Storage Studio again from storagestudio.us, open the disk image and drag the app to Applications, replacing the old copy. Your moves, rules, accounts and settings are kept, and your trial or licence is recognised.
If what you really need is to repair the background service rather than the app, use More → Set Up / Reinstall… instead — it re-runs setup without touching your files.
After reinstalling, check Full Disk Access: macOS can drop it for a replaced app, and Storage Studio will tell you if so.