You are downloading the Inst@tic XAP file v126.96.36.199 for Windows Phone. Inst@tic is a free and useful Social app: Detect Instagram and Twitter unfollowers and more!Inst@tic is the first and most fully featured Instagram statistics app for Windows 10. ... You can now download the offline XAP file to install & try it.
Download Locations for Inst@tic 188.8.131.52 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Inst@tic XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.