You are downloading the Runtastic XAP file v18.104.22.168 for Windows Phone. Runtastic is a free and useful Health & Fitness app: Runtastic is your perfect free fitness tracking app for all of your activities (running, walking, hiking, biking, yoga, strength training & more) ... You can now download the offline XAP file to install & try it.
Download Locations for Runtastic 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Runtastic XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.