The SoVi app’s user interface being displayed on several mobile-phone screens.

The SoVi app detects a digital watermark on the packaging and acoustically communicates important information. (Image: SonicView)

Designing barrier-free packaging

Digital watermark provides the necessary help

‘Analogue’ solutions also help

Three soft-drink bottles seen from above, each with an apple, orange and lemon symbol on the cap.

Analogue solutions also help: The Cologne-based Gaffel brewery has been printing a symbol of the fruit used to flavour its Fassbrause – a beer-like soft drink – on the caps of its bottles since December 2021. (Image: Gaffel)