This software is provided as-is, and is now free of charge. The GTO Help site is available at gtohelp.tinjasoft.com. GTO Tasks is not associated with Google Inc in any way. There is a blog post at www.tinjasoft.com about why GTO is now free.
Select the Download link below from your Android device. After the file has finished downloading, Android might automatically ask you to install the app. If not, you can find and open the file in your browser's Downloads folder.
You may need to enable the "Unknown sources" setting on your phone. The location of this setting differs by version, but on recent Android releases, it can be found under Settings > Security > Unknown Sources.