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Continuous backup

Back up what you just did.

macup watches your Mac and backs up every change, continuously. A new file. An edit to a project. An exported master. Captured. Encrypted. Off your Mac. Usually before you even hit save.

No card required

How it works

Watch. Stage. Encrypt. Send.

Four steps, none of which you ever have to think about.

  1. Watch

    macup listens to macOS file-system events — the same API Time Machine uses — to know what changed.

  2. Stage

    Changed files are staged in memory, deduplicated against what's already backed up, and chunked into immutable blobs.

  3. Encrypt

    Each blob is encrypted with AES-256 using a key that never leaves your Mac in plain text. We can't decrypt it. Neither can the storage provider.

  4. Send

    Encrypted blobs are uploaded to your chosen destination. If the network drops, we resume. If you pause, we queue.

Speed

Fast when you're fast. Invisible when you're not.

40GB

Lightroom catalog, edited daily — about 8 MB/day after the first backup.

60sec

Default minimum interval between backup cycles. Tunable from 30 seconds to 24 hours.

0%

CPU spike when idle. The watcher is an OS event subscription, not a poller.

Under load

Work hard. We'll wait.

macup throttles itself the moment your Mac needs the CPU. Rendering a 4K export? macup pauses. Finished? It catches up. You can set hard caps on bandwidth and disk I/O in the menubar, or let macup decide.

The 3-2-1 rule

Three copies. Two media. One off-site. One tool.

The industry-standard recovery rule, satisfied without you wiring three different products together. macup is the working drive's continuous backup, the external drive's scheduler, and the off-site cloud — at once.

Your work
Continuously backed up
Visibility

See every snapshot as it happens.

Open the menubar. Open the dashboard. Open the activity log. macup shows you what was backed up, when, how big, and where. When something fails, you know. When something's running, you can pause it. When something's done, you see the green tick.

manage.macup.app — Activity
2:14 PM Projects 2026 · 42 files · 128 MB uploaded · Done
2:08 PM Lightroom Catalog · 1 file · 4.2 MB uploaded · Done
2:03 PM Final Cut Libraries · Yielding to macOS Time Machine · will retry in 5 min
1:58 PM Documents · 7 files · 22 MB uploaded · Done
1:52 PM Desktop · 3 files · 1.1 MB uploaded · Done
FAQ

About continuous backup.

What if I'm on a laptop and go offline?

macup queues changes locally. When you're back online, it picks up where it left off — no re-scanning, no duplicate uploads.

Does this work with Photos libraries or iCloud files?

Photos libraries ship as a Phase-2 product feature — we handle the .photoslibrary package structure without corrupting it. iCloud files with 'Optimize Mac Storage' on require a preflight that downloads originals before snapshot; you can enable that per backup set.

Can I schedule instead of continuous?

Yes. Each backup set can be continuous (default), hourly, daily, or on a custom cron. Set per destination — continuous to the cloud, daily to an external drive for instance.

How do I exclude files?

Exclude rules accept paths, globs, and predefined sets (node_modules, .DS_Store, build artifacts, caches). A default ruleset ships with the app; add to it per backup set.

What happens during a Time Machine run?

macup and Time Machine coexist. We yield I/O bandwidth when macOS reports another snapshot in progress, and resume when it completes. No fighting for the drive.

Capture every change. Before you even hit save.

Start a 14-day trial. No credit card. Set it up in under five minutes.