Arcamere

Arcamere for macOS

Back up to a bucket you own, then let it prove every week that what came back is what went in.

Download Arcamere 0.8.23 macOS 15 or later, Apple silicon. Signed and notarized by Apple.

It updates itself

Every later version arrives on its own, signed and checked against its published hash before it is allowed to replace anything. You install once.

Your bucket, your keys

Point it at any S3-compatible storage you already pay for. Everything is encrypted on your Mac with AES-256-GCM, so the bucket holds only ciphertext and the key stays with you.

Running in minutes

The app runs on your Mac and talks straight to your storage, so you can start right away. Sign in once and a failed backup emails you the same morning.

Installing it

  1. Open the download and drag Arcamere into your Applications folder.
  2. Launch it. macOS checks Apple's notarization and opens it without a warning. Arcamere lives in the menu bar rather than the Dock.
  3. Give it the two permissions it asks for. It explains what each one is for before asking.
  4. Point it at your bucket, then run one restore drill by hand so you have seen it work before you rely on it.

If you want to check the download yourself before opening it, its SHA-256 is published alongside the file:
234842439cd306ca43f61f4afe4d5e0d4d44da0d28001a68ae74e151124cd92a

What it costs

Arcamere is $79 a year when you bring your own bucket, which is the way it is meant to be used. Storage you already pay for stays yours and is not marked up. The full pricing is on the home page.