You are downloading the Guitar Tuna XAP file v220.127.116.11 for Windows Phone. Guitar Tuna is a free and useful Education app: GuitarTuna is the easiest, fastest and most accurate guitar tuner app out there! ***** Guitar Tuna is the #1 most popular guitartuner app ... You can now download the offline XAP file to install & try it.
Download Locations for Guitar Tuna 18.104.22.168 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Guitar Tuna XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.