OpenTech Alliance Inc., a Phoenix-based provider of kiosks, call-center services and other technology for the self-storage industry, launched an app for users of its StorageTreasures online-auction service. Integrated with storagetreasures.com, the app allows buyers to search for self-storage auctions, watch desirable listings and place bids. It’s available for download in Google Play or Apple App Store, according to a press release.