Storage Peek vs DaisyDisk: Which Mac Disk Analyzer Is Faster?
Your Mac storage is full. You need to find large files fast.
Two apps dominate visual disk analysis: DaisyDisk and Storage Peek.
DaisyDisk won an Apple Design Award. It’s beautiful, polished, and costs $9.99.
Storage Peek is affordable ($2.99), fast, and focuses on speed over aesthetics.
Here’s an honest comparison to help you choose.
Quick Comparison
| Feature | Storage Peek | DaisyDisk |
|---|---|---|
| Pricing | $2.99 (one-time) | $9.99 (one-time) |
| Scan Speed (500GB SSD) | ~8-12 seconds | ~15-25 seconds |
| Visualization | Rectangular treemap | Circular sunburst |
| Design | Minimalist, functional | Polished, animated |
| Menu Bar Widget | Yes (at-a-glance storage stats) | No |
| Delete from App | Yes (Move to Trash) | Yes (Delete or Collect) |
| Reveal in Finder | Yes | Yes |
| Admin Mode (Scan System Files) | Yes | Yes |
| Saved Scans | No | Yes (compare over time) |
| Color Coding | By file type | By file type |
| Keyboard Shortcuts | Basic | Extensive |
| File Preview | No | Quick Look preview |
| Export Scan Report | No | Yes (HTML report) |
| macOS Compatibility | macOS 13+ (Ventura, Sonoma, Sequoia) | macOS 11+ (Big Sur and later) |
| Apple Silicon | Yes (M1/M2/M3/M4 optimized) | Yes (M1/M2/M3/M4 optimized) |
| Intel Mac | Yes | Yes |
What Each App Does
Storage Peek: Speed + Simplicity
Core philosophy: Find what’s using space in seconds. Delete it. Done.
What it does:
- Scans entire drive in ~10 seconds (multi-threaded, optimized for SSDs)
- Visual treemap (rectangles sized by file/folder size)
- Click rectangles to drill down into folders
- Right-click to reveal in Finder or move to Trash
- Menu bar widget shows storage usage at a glance
- Color-coded by file type (videos, images, apps, documents, etc.)
- Admin mode to scan system folders
What it doesn’t do:
- No saved scans (can’t compare before/after)
- No export reports
- No animations or polish
- No Quick Look file preview
Target user: Users who want fast analysis without learning shortcuts or navigating menus. Get in, find large files, delete, get out.
Pricing: $2.99 (one-time purchase on Mac App Store)
DaisyDisk: Polish + Power User Features
Core philosophy: Make disk analysis beautiful and enjoyable. Provide tools for advanced users.
What it does:
- Scans drive with smooth animated progress indicator
- Circular sunburst visualization (iconic design)
- Smooth zoom animations when navigating folders
- Save scan results (compare storage over time)
- Export HTML report of disk usage
- Quick Look file preview (press Space to preview files)
- Extensive keyboard shortcuts for power users
- Delete or “Collect” files (stage for deletion, review, then delete batch)
What it doesn’t do:
- No menu bar widget (have to open app to check storage)
- Slightly slower scanning (optimized for animation smoothness)
Target user: Users who want the most polished disk analyzer and don’t mind paying $10. Power users who want saved scans and reports.
Pricing: $9.99 (one-time purchase)
Feature-by-Feature Comparison
1. Scanning Speed
Why speed matters: When disk is full, you need answers now. Waiting 2 minutes to scan is frustrating.
Storage Peek:
- ✅ ~8-12 seconds for 500 GB SSD (M1/M2 Mac)
- Multi-threaded scanning (uses all CPU cores)
- Optimized for modern SSDs (parallel directory traversal)
- No animations during scan (just a progress bar)
DaisyDisk:
- ⚠️ ~15-25 seconds for 500 GB SSD
- Single-threaded scanning (to avoid UI jank during animations)
- Smooth animated progress indicator (beautiful but adds overhead)
- Renders visualization while scanning (slows scan slightly)
Real-world test (MacBook Pro M2, 512 GB SSD, 400 GB used):
- Storage Peek: 9 seconds
- DaisyDisk: 22 seconds
Winner: Storage Peek (2-3x faster on average).
2. Visualization Style
Storage Peek: Rectangular Treemap
- Rectangles represent files/folders (size = area)
- Larger rectangles = more space used
- Click rectangle to zoom into folder
- Breadcrumb navigation at top
- Color-coded by file type
Pros:
- Space-efficient (no wasted space between rectangles)
- Easy to compare sizes at a glance
- Familiar (similar to WinDirStat, Disk Inventory X)
Cons:
- Less visually striking than DaisyDisk
- No animations (instant transitions)
DaisyDisk: Circular Sunburst
- Circular layout (like a pie chart with rings)
- Rings represent folder depth (outer ring = deeper folders)
- Click segment to zoom in
- Smooth zoom animations
Pros:
- Gorgeous design (Apple Design Award winner)
- Smooth animations feel premium
- Iconic look (instantly recognizable)
Cons:
- Wasted space in center (less efficient than treemap)
- Harder to compare small segments at a glance
- Animations add cognitive load (some users prefer instant feedback)
Winner: Tie (subjective preference—treemap for efficiency, sunburst for beauty).
3. Speed of Navigation
Storage Peek:
- Click rectangle → instant drill-down (no animation)
- Breadcrumb navigation (click folder name to go back)
- Hover over rectangle → shows file/folder name + size
- Right-click → Reveal in Finder or Move to Trash
DaisyDisk:
- Click segment → smooth zoom animation (~0.5 seconds)
- Back button or keyboard shortcut to go back
- Hover over segment → tooltip with name + size
- Select segment → bottom panel shows details + actions
Winner: Storage Peek (instant vs. animated—faster for repetitive navigation).
4. Menu Bar Widget
Storage Peek:
- ✅ Shows storage usage in menu bar (e.g., “120 GB / 512 GB”)
- Click to see breakdown (System, Apps, Documents, etc.)
- Quick access to full treemap view
DaisyDisk:
- ❌ No menu bar widget
- Have to open app to check storage
Winner: Storage Peek (unique feature—monitor storage without opening app).
5. Saved Scans & Comparison
DaisyDisk:
- ✅ Save scan results with a name (e.g., “Before cleanup”)
- Scan again later, compare to previous scan
- See what changed (new files, deleted files, size differences)
- Useful for: “Did my cleanup actually free up space?”
Storage Peek:
- ❌ No saved scans (every scan is fresh)
Winner: DaisyDisk (unique feature for power users).
6. File Actions
Both apps let you delete files directly.
Storage Peek:
- Right-click file/folder → Move to Trash
- Right-click → Reveal in Finder
- That’s it (simple)
DaisyDisk:
- Select file/folder → Delete (moves to Trash)
- Select file/folder → Collect (stage for deletion, review list, then delete batch)
- Quick Look (press Space to preview file before deleting)
- Show in Finder
Winner: DaisyDisk (more options—Collect + Quick Look useful for careful deletion).
7. Admin Mode (System Files)
Both apps support scanning system folders (requires admin password).
Storage Peek:
- ✅ Admin mode checkbox
- Scans /System, /Library, /private, etc.
- Useful for finding iOS backups, caches, logs
DaisyDisk:
- ✅ “Scan as Administrator” button
- Scans system folders with authentication
Winner: Tie (both support admin mode).
8. Export & Reporting
DaisyDisk:
- ✅ Export scan as HTML report
- Useful for documentation (e.g., “Here’s what’s using space on this Mac”)
- Share report with others (no need to install DaisyDisk)
Storage Peek:
- ❌ No export feature
Winner: DaisyDisk (useful for IT admins or team documentation).
9. Keyboard Shortcuts
DaisyDisk:
- ✅ Extensive shortcuts (Cmd+Delete to delete, Space for Quick Look, Arrow keys to navigate)
- Power users can analyze disk without mouse
Storage Peek:
- ⚠️ Basic shortcuts (Cmd+W to close, Cmd+Q to quit)
- Designed for mouse/trackpad interaction
Winner: DaisyDisk (better for keyboard-driven workflows).
10. Design & Polish
Storage Peek:
- Minimalist, functional design
- Native macOS look and feel
- No animations (instant feedback)
- Lightweight (<1% CPU, <30 MB RAM)
DaisyDisk:
- Award-winning design
- Smooth animations throughout
- Polished UI (every detail refined)
- Slightly heavier (~50 MB RAM during use)
Winner: DaisyDisk for design quality. Storage Peek for minimalism.
11. Pricing & Value
Storage Peek:
- $2.99 (one-time purchase, no subscription)
- Full features included
- No hidden tiers or in-app purchases
DaisyDisk:
- $9.99 one-time purchase
- Free trial available (limited scans, full features)
- No subscription (buy once, use forever)
Winner: Storage Peek ($3 vs. $10—more affordable and faster).
Which Should You Choose?
Choose Storage Peek if:
- ✅ You want fast scanning (8-12 seconds vs. 15-25 seconds)
- ✅ You prefer instant navigation (no animations)
- ✅ You want a menu bar widget (monitor storage without opening app)
- ✅ You want more affordable ($3 vs. $10)
- ✅ You prioritize speed > aesthetics
Best for: Users who need quick disk analysis at a lower price. Developers who scan frequently (faster workflow).
Download Storage Peek (Free) →
Choose DaisyDisk if:
- ✅ You want the most polished experience (animations, design, attention to detail)
- ✅ You want saved scans (compare before/after cleanup)
- ✅ You want Quick Look preview (see file contents before deleting)
- ✅ You want export reports (HTML export for documentation)
- ✅ You use keyboard shortcuts heavily (arrow keys, Space, Cmd+Delete)
- ✅ You don’t mind paying $9.99 for premium UX
Best for: Users who want the best-designed disk analyzer and value polish over speed. Power users who want saved scans and reports.
Can You Use Both?
Yes, they don’t conflict.
Use case:
- Storage Peek for quick daily checks ($3, fast, menu bar widget)
- DaisyDisk for deep cleanup sessions (saved scans, careful deletion with Quick Look)
Practical approach: Use Storage Peek 90% of the time (instant answers). Use DaisyDisk when you want to do a thorough cleanup and compare before/after.
Other Alternatives to Consider
If neither fits your needs:
1. Disk Inventory X (Free, Open Source)
- Classic treemap visualization
- Fast scanning
- Limitation: Not updated since 2013 (still works, but outdated UI)
- Best for: Free treemap tool, don’t care about modern design
2. OmniDiskSweeper (Free)
- List-based view (no treemap)
- Shows folders sorted by size
- Limitation: No visual treemap, slower than modern analyzers
- Best for: Users who prefer lists over visuals
3. GrandPerspective (Free, Open Source)
- Treemap visualization
- Multiple color schemes
- Limitation: Slow scanning, clunky navigation
- Best for: Open-source advocates who want a free treemap tool
4. macOS Storage Management (Built-in, Free)
- Basic storage breakdown by category
- Generic recommendations
- Limitation: No file-level detail, no treemap
- Best for: Quick overview without installing apps
My Honest Take
For most users: Start with Storage Peek ($3). It’s fast, affordable, and does the job well.
If you want the best UX: Upgrade to DaisyDisk ($10). The design, animations, and saved scans justify the extra cost if you value polish.
If you’re on a budget: Use Storage Peek. It’s $3 and faster than DaisyDisk—you’re not missing critical features, just polish.
If you’re a power user: Use both. Storage Peek for quick checks (menu bar widget), DaisyDisk for thorough cleanup with saved scans.
If you’re a developer: Use Storage Peek. Faster scanning = better workflow when cleaning Xcode cache, npm modules, Docker images frequently.
FAQ
Is DaisyDisk worth $10?
Depends on your priorities.
You’re paying for:
- Award-winning design (smooth animations, polished UI)
- Saved scans (compare before/after cleanup)
- Quick Look preview (see file contents before deleting)
- Export reports (HTML export)
- Active development (regular updates)
You’re NOT paying for:
- Faster scanning (Storage Peek is faster)
- More features (both have core features)
Worth it if: You value design quality and plan to use disk analyzer regularly. $10 one-time is reasonable for a polished tool.
Not worth it if: You just need to find large files once in a while. Storage Peek ($3) does the job at a lower price.
Why is Storage Peek faster than DaisyDisk?
Technical reasons:
-
Multi-threaded scanning: Storage Peek uses all CPU cores (8-12 threads on M2). DaisyDisk uses fewer threads to avoid UI jank during animations.
-
No animations during scan: Storage Peek shows a progress bar. DaisyDisk renders the sunburst visualization while scanning (adds overhead).
-
Optimized for SSDs: Storage Peek uses parallel directory traversal (fast on modern SSDs). DaisyDisk uses sequential traversal (safer but slower).
Trade-off: DaisyDisk prioritizes smooth animations over scan speed. Storage Peek prioritizes speed over aesthetics.
Can I trust these apps to delete files safely?
Yes, both use macOS Trash.
How it works:
- Select file/folder → “Move to Trash” (or “Delete” in DaisyDisk)
- File moves to Trash (not permanently deleted)
- You can restore from Trash if you deleted wrong file
- Empty Trash manually when ready
Safety tip: Don’t blindly delete large files. Check what they are first (especially in System folders).
Do these apps work on external drives?
Yes, both scan external drives.
How to scan external drive:
- Storage Peek: Click “Choose Folder” → Select external drive
- DaisyDisk: Click drive icon at top → Select external drive
Use case: Clean up external backup drive, USB stick, or NAS share.
Why is “System Data” so large in macOS Storage Management?
Common causes (see with disk analyzer):
- iOS backups (~/Library/Application Support/MobileSync/Backup/) — 10-100 GB
- Time Machine snapshots (/Volumes/.MobileBackups/) — 10-50 GB
- Browser caches (~/Library/Caches/) — 5-20 GB
- Xcode derived data (~/Library/Developer/Xcode/DerivedData/) — 20-50 GB
- Docker images (~/Library/Containers/com.docker.docker/) — 10-50 GB
Solution: Use Storage Peek or DaisyDisk to drill down into System Data and identify specific files.
Can I use DaisyDisk trial forever?
No, trial is limited to 5 scans.
After 5 scans, you have to buy ($9.99) or switch to a free alternative (Storage Peek, Disk Inventory X).
Trial tip: Use trial to test if you like the sunburst visualization and saved scans. If not, use Storage Peek ($3).
Conclusion
Storage Peek vs DaisyDisk boils down to: speed + affordable vs. polish + premium.
| Priority | Winner |
|---|---|
| Fastest scanning | Storage Peek (2-3x faster) |
| Best design | DaisyDisk (Apple Design Award) |
| Menu bar widget | Storage Peek (unique feature) |
| Saved scans | DaisyDisk (unique feature) |
| Most affordable | Storage Peek ($3 vs. $10) |
| Quick Look preview | DaisyDisk |
| Keyboard shortcuts | DaisyDisk |
| Instant navigation | Storage Peek (no animations) |
My recommendation:
- Affordable + fast: Storage Peek ($3)
- Polished + worth $10: DaisyDisk
- Use both: Storage Peek for daily checks, DaisyDisk for deep cleanup
Try both and decide:
Related guides:
- What’s Taking Up Space on My Mac?
- Mac Storage Management Guide
- How to Clean Xcode Cache and Derived Data (coming soon)
Want instant storage analysis? Download Storage Peek ($2.99) →