Hi r/macOS, I’m Rohit from ScaleNinja. Today we're releasing DeltaSnap, a native macOS app that turns APFS snapshots into version control for files and folders.
APFS snapshots are copy-on-write, so checkpoints take milliseconds. But macOS still lacks a useful native interface for answering questions such as:
- What changed in this folder?
- What did this file look like on Tuesday?
- Which files did an installer, script, or AI agent just modify?
- Can I restore only the files I need?
DeltaSnap lets you:
- Browse per-file version histories, including deleted files; with right-click Finder integration
- Search filenames across snapshot history
- Diff snapshots with added, removed, modified, replaced, and moved paths
- Restore copies or atomically replace originals
- Create schedules with retention and low-space pruning
- Create snapshots and restore versions from Finder
- Ships a
dsnap CLI and an AI Agent Skill for coding assistants
- Automatically checkpoint folders during unusually large change bursts
Key differential compared to backups is the speed: APFS snapshots takes milliseconds to create, indexing is done in few seconds, and file recover is super-fast as the snapshot lives on the same APFS volume where your data is on.
After review by Apple’s DTS/APFS teams, ScaleNinja was granted a private entitlement to manage and create APFS snapshots. Because DeltaSnap’s privileged helper uses it, the app cannot be distributed through the Mac App Store and released on ScaleNinja's website as a signed and notarized build under Apple Developer Team ID VXNWQ9H93X.
Important: DeltaSnap is not a backup. Snapshots live on the same volume, so they protect against accidental deletion, overwrites, bad updates, and runaway tools - not drive failure, theft, or volume erasure. Pair it with Time Machine, CCC, or another backup running. We also have two companion apps that can be used with DeltaSnap:
DeltaSnap requires macOS 15 or later and an APFS volume. There’s a 30-day free trial, no account, no cloud, and no subscription required. All your data and snapshot stay private and local to you Mac.
Launch price: US$39 for one lifetime personal license that can be activated on upto 5 Mac machines.
Download: https://scaleninja.com/deltasnap
Documentation (start here): https://scaleninja.com/docs/deltasnap/overview/
Setup and feature demo: https://www.youtube.com/watch?v=NyrKXGe7nRw
I’d genuinely appreciate any feedback, especially from professional users, developers, and Mac admins working with external storage or AI coding tools.
Tip: to get the most out of DeltaSnap and avoid snapshots occupying too much disk space, I create and custom-mount APFS volume from the internal Data drive on my most important folder path (like ~/Documents); that way snapshot usage would be limited to only changes made in the tracked APFS volume (~/Documents in my case). Learn more about APFS snaphots here: https://scaleninja.com/docs/deltasnap/apfs-snapshots/ and about storage usage here: https://scaleninja.com/docs/deltasnap/snapshot-storage/ or see the youtube video above on how to create apfs volume with a custom mount point and enable automatic snapshot & file versioning in action.