Berny: la consigne facile is an iPhone app designed to tackle the issue of accumulating waste from single-use packaging in your trash. The app offers reusable trays at participating supermarkets, eliminating the need for disposable packaging. Users can borrow stainless steel trays for free for up to 30 days, with the deposit fee being deducted directly from their shopping bill. The app sends reminders and notifications to ensure timely return of the trays, rewarding users with a credit of 0.10€ per tray returned.

Through the app, users can locate nearby collection points, track their environmental impact, and access customer support in the Help section. For more information, users can visit Berny's website or follow them on social media platforms.