A NEW ECOSYSTEM DEDICATED TO COLLECTORS.

The platform for those who want a private digital vault and protected transactions with checks and physical logistics inspection, with the assistance and support of a dedicated team of experts.

21App is born from the meeting of two complementary skill sets: the experience, market knowledge and international network of 21Art, together with the strategic vision and digital architecture of KNTNR.

We have brought two worlds together to rethink contemporary collecting: an elite Managed Marketplace where technology, confidentiality and expertise work together to give collectors, sellers and professionals a safer, more transparent and more qualified experience.

No compromises. No needless barriers. With art, and the people who truly live it, back at the centre.

21App is not a simple digital showcase. It is an operational infrastructure designed to manage, protect and enhance the most valuable Fine Art assets, supporting every stage of the relationship with the artwork: from private cataloguing to sale, from advisory to building new connections.

An ecosystem built for Fine Art

Digital Vault

Your collection, protected and organised.

A private digital vault to catalogue, archive and securely manage the information about the artworks in your collection. A private space designed to enhance your artistic assets and protect the most sensitive data.

Inspected Sale

Protected transactions, real verification.

We handle sales in complete confidentiality, protecting both parties at every stage of the transaction. Funds are held in Escrow and the artwork is transferred only after a careful physical and documentary inspection at our Hub in Pianiga.

Art Advisory

Elite expertise in the service of important decisions.

We offer tailored professional services for collectors, investors and artwork owners: valuations, due diligence, strategic advice, logistics management and operational support, to the highest standards of security and confidentiality.

Club Experiences

Relationships, access and moments that matter.

21App is also a private community. We organise exclusive events, salons, previews and occasions to meet, dedicated to those who want to experience art beyond the transaction. Access and benefits are calibrated according to the Club Membership level.

From idea to action

Elite Fine Art management has a new infrastructure.

21App is the meeting point between human experience and digital innovation, between trust built over time and tools designed for the future.