Getting Started Downloading the 701x App To interface with cTag, download the 701x app from the App Store or Google Play Store and install it onto your phone. Setting Up cTAG Follow the steps below to set up your cTAG for the first time. 1. Open the 701x app and follow the onscreen prompts to create an account. Then, log in to the account. 2. Scan the 3D barcode on the front of the tag. The tags information will automatically populate into your app. 3. Assign the tag to the animal it will be applied to. 4.