Hoardshelf for iPhone Duo Turn your Duo into a clock and rotating display of your collection in tent mode. Optional physics lets your devices respond as you tilt your phone, with support for Reduce Motion. Asset Tags Create custom asset tags with your own prefix, numbering, and categories. Preview and print labels with barcodes, serial numbers, and an optional logo. Choose whether asset labels appear in device details. Relevant Files Keep receipts, proof of purchase, and other documents with your devices, synced through iCloud and included in library backups.