# AerariumChain Scan app

AerariumChain Scan is the desktop application that conducts the work of the [Scan kit](/en/scan-kit/): it drives the scanner, the cameras and the lights, keeps each session in order, and delivers everything to the Hub. It runs on Windows and macOS and is downloaded directly from the Hub, so the version in use on site is always the current one.

## Download and install

1. In the Hub, open **Acquisitions > Download App**.
2. Choose your platform: Windows, macOS Apple Silicon or macOS Intel.
3. Install, start, and sign in with the same account you use in the Hub.

## The working screens

- **Dashboard**: what is being packaged and uploaded right now, and what has finished.
- **3D Scan**: opens a session for a given work, launches the Artec scanning software, and watches the session folder; when scan files appear, the session is marked and its technical metadata gathered automatically.
- **Gigapixel**: plans the photographic sequence. The operator chooses the mode (quick, guided, guided rotation, manual or freeform); the app computes the grid of shots from camera, lens and the resolution intended on the work, then follows progress cell by cell.
- **Capture Studio**: the tethered-camera room. Live view and remote control for Fujifilm, Sony and Canon bodies, Pixel Shift multi-shot, the guided multispectral filter sequence, wireless control of the studio lights, and the ColorChecker color report.
- **Upload**: packages finished 3D sessions into protected archives and delivers them; the Hub registers each delivery and starts [automatic processing](/en/upload-and-processing/).
- **Gigapixel Upload / Drive Upload**: delivers gigapixel captures, including a workflow for large sites where several capture stations hand their sessions to one external drive, and only what the Hub does not yet hold is uploaded.
- **History**: every session and delivery, with its state.
- **Setup**: local preferences and paths (scanning software location, session folders).

## How it connects

The app signs in with your AerariumChain account and speaks to the Hub. The collections you can deliver to are those your account may access. Deliveries are verified (checksummed), protected, and sent directly to secure cloud storage; the Hub then ties each one to the right work in the [Catalog](/en/catalog/).

## Several stations, one campaign

On large digitization sites more than one station captures at once. The drive-based delivery collects the sessions of every machine, compares them with what the Hub already holds, and sends only what is missing: nothing is delivered twice, nothing is left behind.