Costco launched a mobile phone application for members in June.Available for both iPhone and Android devices, the free app provides much of the same functionality as the company’s website, allowing users to check the status of and refill prescriptions, shop online, track shipments, find stores, renew memberships and view online and in-store coupons.The app also delivers a mobile version of the chain's Costco Connection membership magazine, and lets iPhone users send images directly to club photo centers to order prints. In the future, Costco may let members use their smartphones as membership cards and/or redeem coupons through the app.The August issue of Costco Connection included two stories about the app, while the Aug. 16 member mailer contained an insert outlining its functionality. The retailer also has been supporting the launch with home page carousel ads, email blasts and Facebook updates.