| Primary job | ✓ Fast local Version Control, change auditing, and selective undo. | ✓ Automatic independent backup and recovery for Mac data. |
| Other apps' snapshots | ✓ Mounts, indexes, compares, and restores single files from snapshots other tools left behind (Time Machine local, Carbon Copy Cloner, SuperDuper, Arq) on any tracked APFS volume, and never rotates or expires them. | − Presents its own backups and local snapshots. Snapshots created by other tools are not part of its restore interface. |
| Checkpoint and restore speed | ✓ An APFS snapshot is copy-on-write metadata, so a checkpoint completes in milliseconds and copies nothing at creation. History lives on the same physical disk, so restoring a file is a local copy with no destination to wake, mount, or reach. | ◐ Backups copy changed data to separate storage on a schedule, and restoring reads back from that disk or network share. Local snapshots are fast, but they are a staging detail rather than a browsable history layer. |
| Local APFS snapshots | ✓ Create checkpoints on demand or by schedule on eligible internal and external APFS Data volumes. | ◐ Automatically saves approximately hourly local snapshots of the startup disk and generally retains them for about 24 hours. |
| File history | ✓ Persistent indexed union of live and deleted paths with a distinct version timeline for each item. | ◐ Browse a folder or supported document backward through available local and backup history. |
| Historical search | ✓ Search names and paths—including deleted-only items—within one volume or across every managed volume. | ◐ Apple supports locating and restoring backup items, but not a DeltaSnap-style persistent deleted-name catalog across snapshot history. |
| Compare changes | ✓ Compare any two snapshots as unified, tree, or ZFS-style path changes, with optional full-scan mode. | − No built-in before/after filesystem diff. |
| Selective recovery | ✓ Restore a dated copy, drag a version out, or replace one original behind a safety checkpoint. | ✓ Select one or more files or folders in the Time Machine interface and restore them to their original location. |
| Monitoring and agents | ✓ Mass-change alarms can checkpoint rapid activity; external agents can create, tag, compare, and recover their own change rounds. | − No mass-change alarm or external-agent safety protocol. |
| Command line | ✓ dsnap covers snapshot, tag, hold, mount, destroy, schedule, index, diff, and license operations. | ◐ tmutil exposes advanced backup and local-snapshot operations, but not DeltaSnap’s tag, hold, history-index, or path-diff workflow. |
| Independent backup and migration | − No. DeltaSnap explicitly requires a separate backup for disk loss, erase, theft, and migration. | ✓ Yes. External or network backup, macOS Recovery, and Migration Assistant are core strengths. |
| Product model | ✓ Native macOS 15+ app with a 30-day trial. US$39 one time per person, the same for personal and business use, bought singly or as team seats at the same price. Covers every Mac that person uses (personal licenses cover the household) and every 1.x update. | ✓ Free and included with macOS. |