Last updated: September 9, 2026
Operator: Kishu Software Works
File access
The contents, names, locations, and modification times of files and folders you select are used for comparison, search, saving, and copying. Comparisons run on your Mac. Files are changed or copied when you confirm a save or copy operation.
Information stored on your Mac
Comparison, display, file-format, encoding, and backup settings, access information for reopening selected items, tab names, filters, and search text are stored on your Mac. Window-restoration data does not include document contents or comparison results.
Supported save operations create a backup of the file’s previous contents and a record of the operation. Temporary data may also be saved to recover an interrupted save.
Sending and exporting information
Document contents, filenames, file paths, settings, and usage data are not sent to the operator’s servers or external comparison, advertising, analytics, or AI services. The app does not serve ads, track users, or use third-party usage analytics.
Copying or exporting places content or paths on the clipboard or at your chosen destination. Files and backups saved in cloud-synced folders may sync according to that service’s settings.
Apple handles App Store downloads, purchases, and refunds. The operator does not receive payment-card details. See Apple’s Privacy Policy for how Apple handles your information.
Backup retention and deletion
Backups are kept in the app’s storage on your Mac by default, or in a folder you choose. The list shows up to 500 records from the last 90 days; older backups are not automatically deleted just because they fall outside that range. Records of failed operations may also remain for recovery.
Backups remain until deleted in the app or from their storage location. If automatic deletion of unchanged backups is enabled, that setting applies. Settings and window-restoration data remain until replaced or until the app’s stored data is deleted.
Removing the app may leave settings and backups behind. Backups stored outside the app’s storage can be deleted in Finder. Deleting backups or settings does not delete the original files used for comparison.
Exported files and copies in device backups or cloud storage are not removed by deletion within the app. They remain according to that destination’s settings; delete unwanted copies where they are stored.
Information received through support
Names, email addresses, messages, and attachments received by email are used to answer inquiries, follow up, and investigate problems.
Email services handle the sending, receiving, and storage of support messages as needed to provide support. Information is kept for as long as needed for that purpose and deleted when no longer needed.
Personal data is not shared with third parties without the person’s consent, except as provided by law.
The operator takes measures to protect personal data it holds from unauthorized access, disclosure, and loss. Details of these measures are available on request to the extent that disclosure would not compromise security.
Requests to access, correct, or delete information
For questions about this policy or requests to access, correct, stop the use of, or delete support information held by the operator, email [email protected]. Requests are handled in accordance with applicable law after verifying your identity.
Updates to this policy
If our data practices change, this page and its update date will be revised.