Synchronous audio walks
Chapters start along the route automatically and can be replayed whenever needed.
Digital tour
Our new app combines audio walks, dynamic maps and archive material directly on site. Perfect for guided tours, individual visits or preparation at home.
We currently send download links manually and confirm each request personally.

Status
Pilot 2025
Reserved for tours & partners
Content
35+ POIs
Audio, archive, witness voices, 3D sketches
On-site QR access
Features
Audio, maps and archival context merge into one interface so visitors can dive deeper at their own pace.
Chapters start along the route automatically and can be replayed whenever needed.
Detailed map showing POIs, tunnels and restricted areas including compass guidance.
Download maps, audio and media beforehand to stay independent from mobile coverage.
QR tokens, user roles and expiry rules protect sensitive areas and can be revoked anytime.
Onboarding
Four simple steps to equip groups or individual visitors with the digital experience.
Send us a short note – we reply with download links, QR tokens and preparation tips.
Install via TestFlight or the Google Play beta channel. Login happens through the invitation email.
Open the QR view inside the app, a terminal or guide scans it and validates the session.
Audio, copy and media stay available after the tour so memories can be revisited.
Beta program
Until the public release we provide a limited number of seats – prioritised for tours, partners and media.
Planned stores
Apple App Store
Review in progress – currently TestFlight only.
Google Play
Internal testing track for the beta.
FAQ
The most common answers around onboarding, connectivity and security.
Currently guided tours, project partners and selected journalists receive the beta link so we can iterate closely.
Only for the very first download. After that the guide runs offline; the QR scan at the terminal starts the session.
Tokens expire automatically, can be revoked remotely and each scan is logged within the dashboard.
German, English, Italian and Dutch – the same set as on our website.
Contact
Tell us briefly where you want to use the app. We reply with credentials, setup guidance and optional training slots.