Independent Mac studio · France

Apps that perfect your whole Mac experience.

BlitzCortex makes small, careful macOS utilities for people who build things. One-time price, no account, and nothing leaves your Mac.

See our apps Contact the studio

        Can be freed
        Rebuilds on its own
        Your work, locked
      

Products

Direct download · Signed and notarized by Apple

Ferah Disk space for AI agents and developer Macs

See what Claude Code, Codex, Cursor and your developer tools left on your disk. Work in progress stays locked, and every removal can be undone for 7 days.

Coming soon

In the works A second app for developer Macs

Built the same way: native, on-device, and careful with your files.

Want a note when it ships? Write to us

How we build

Your work is off limits

Anything in use or not yet saved is locked. You can see it, but you cannot select it.

Undo comes first

Removed files wait 7 days before they are gone. Restore is one click.

On your Mac only

No account, no telemetry, no cloud. File names and paths never leave the device.

Pay once

No subscriptions. Every update of the major version is included, on 2 Macs.