DupScan vs dupeGuru — Native Mac App vs Cross-Platform Tool

Compare DupScan and dupeGuru for finding duplicate files on Mac. See why DupScan works on current macOS while dupeGuru is broken, plus feature and performance differences.

Feature	DupScan	dupeGuru
Price	$9.99 one-time (free to scan)	Free, open source
macOS Compatibility	macOS 13+ (fully supported)	Broken on current macOS versions
Framework	Native SwiftUI	Python + Qt (cross-platform)
Apple Silicon	Optimized with hardware-accelerated hashing	Runs via Rosetta (if at all)
Active Development	Yes — regular updates	No updates since 2022
Safe Deletion	Trash with History and restore	Direct deletion (no restore)
Cross-Platform	macOS only	macOS, Windows, Linux
Data Collection	None	None (open source)

Does dupeGuru Still Work on Current macOS Versions?

dupeGuru is broken on current macOS versions and has not received updates since 2022. The Python-based application fails to launch or crashes on macOS Ventura and later due to unresolved compatibility issues with Apple's security and permission frameworks.

dupeGuru was a respected open-source duplicate finder for many years. However, development has stalled and the project's GitHub repository shows no active maintenance. Users on macOS Sonoma and macOS Sequoia report that dupeGuru either refuses to open, crashes during scanning, or cannot access folders due to missing permission entitlements.

DupScan is built natively with SwiftUI and is actively developed for current macOS versions. Security-scoped bookmarks handle folder permissions correctly, and every release is tested on the latest macOS. See all of DupScan's features and capabilities.

How Does DupScan's Performance Compare to dupeGuru?

DupScan outperforms dupeGuru significantly because it is a native SwiftUI app optimized for Apple Silicon with hardware-accelerated SHA256 hashing. dupeGuru runs Python code through Rosetta translation on Apple Silicon Macs, resulting in slower scanning and higher memory usage.

DupScan's two-pass hashing optimization scans a 4KB partial hash first, then runs full-file SHA256 only on candidates. This approach, combined with parallel processing across all CPU cores, makes full-disk scans complete in minutes. dupeGuru processes files sequentially in Python, which is inherently slower for large filesystems.

Apple Silicon Macs (M1, M2, M3, M4) benefit most from DupScan's native architecture. CryptoKit's SHA256 implementation uses the hardware acceleration built into Apple's chips, a performance path unavailable to cross-platform Python applications.

What Does dupeGuru Offer That DupScan Does Not?

dupeGuru is free and open source, runs on macOS, Windows, and Linux, and supports fuzzy matching for music files. DupScan is macOS-only and costs $9.99 for the Pro upgrade, but it works reliably on current macOS versions with native performance.

dupeGuru's cross-platform nature was its primary advantage — users with both Mac and Windows machines could use one tool everywhere. Its music-specific fuzzy matching mode compared audio metadata and content to find near-duplicate songs. However, these features are irrelevant if the app cannot run on your current operating system.

For Mac users who need a duplicate finder that works today, DupScan provides reliable scanning, safe Trash-based deletion with restore capability, and active development. Read our complete guide to finding duplicate files on Mac for a full comparison of available methods.

Should You Switch from dupeGuru to DupScan?

Mac users should switch from dupeGuru to DupScan because dupeGuru no longer functions on current macOS versions. DupScan provides the same core capability — finding exact duplicate files — with native performance, safe deletion, and ongoing compatibility updates.

DupScan's free tier provides unlimited scanning and full duplicate detection, matching dupeGuru's core functionality at no cost. The $9.99 Pro upgrade adds deletion and restore capabilities. For users who valued dupeGuru's reliability and accuracy, DupScan carries that same philosophy forward with modern macOS support. See our pricing breakdown for details.

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