Which fits your needs?
Delve: Apple Silicon users on macOS 26+ who want two maps and staged cleanup.
SpacePeek: Finder users who want to inspect archives before extracting or deleting them.
Features, pricing, and workflow
Scroll across to compare
| Feature | Delve | SpacePeek |
|---|---|---|
| Best fit | Apple Silicon users on macOS 26+ who want two maps and staged cleanup. | Finder users who want to inspect archives before extracting or deleting them. |
| Visualization | Treemap, sunburst, and file list | Finder Quick Look folder/archive browser and size overview |
| Platforms and requirements | macOS 26+, Apple Silicon | macOS 14+ |
| Pricing and editions | Vendor lists $4.99 once after a 14-day trial. | Free previews; optional $3.99 one-time Pro purchase in the US App Store. |
| Open source | No | No |
| Native macOS UI | Yes | Yes |
| Cleanup workflow | Stage items in the Collector, then send the reviewed batch to Trash. | Inspection and copying; use Finder or a separate cleanup tool for removals. |
| Reports and portability | The developer documents exporting maps as posters with Command-Shift-E. Keep that image as a reference; it is not a scan file that NullDisk can import. | SpacePeek previews existing folders and archives. Keep original archives and important paths; moving to NullDisk does not transfer Quick Look extension features. |
Delve: what stands out
A good fit for Apple Silicon users on macOS 26+ who want two maps and staged cleanup.
Delve: strengths
- Treemap, sunburst, and file list
- Logical and on-disk measurement with filtering
- Quick Look, collector-to-Trash, and map image export
Considerations
- Requires macOS 26 or later
- Apple Silicon only in the current requirements
- A map export is a visual record, not a file backup
SpacePeek: what stands out
A good fit for Finder users who want to inspect archives before extracting or deleting them.
SpacePeek: strengths
- Preview and search folders plus ZIP, 7z, and RAR archives
- Folder-size overview without background indexing
- Pro adds deeper navigation and copying archive members
Considerations
- An inspection companion rather than a full-drive cleanup utility
- Free browsing stops after the first child level
- Pro archive copying is limited to 100 MiB per file
For a useful comparison on your own drive, match the scan root, access permissions, and size mode. Chart style changes how you explore the results; it does not by itself establish measurement accuracy.
Common questions
When should I choose Delve?
A good fit for Apple Silicon users on macOS 26+ who want two maps and staged cleanup. Vendor lists $4.99 once after a 14-day trial.
When should I choose SpacePeek?
A good fit for Finder users who want to inspect archives before extracting or deleting them. Free previews; optional $3.99 one-time Pro purchase in the US App Store.
Will both apps show the same size?
Not necessarily. Match the scan root, permissions, exclusions, and logical/allocated-size mode. Hard links, APFS clones, snapshots, sparse files, and cloud placeholders can change totals. A reported size is not a guaranteed amount recovered after deletion.