When comparing Federated Wiki vs Yousician, the Slant community recommends Yousician for most people. In the question“What are the best tools for learning to play the guitar?” Yousician is ranked 1st while Federated Wiki is ranked 4th. The most important reason people chose Yousician is:
Works with PC, Mac, Linux* as well as Android and iOS. *64 bit versions of Linux only.
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Arrange your personal view of a wikis content by opening local and remote pages next to each other. Shift-clicking a link will open it next to already open ones. The story will then be visible in the URL.
Pro Free and Open Source Software
Your page is the Journal of the page.
Pro Drag and drop refactoring
Recompose your contents all the time.
Write locally, fork to your public site. Fork from others.
Pro Multi platform support
Works with PC, Mac, Linux* as well as Android and iOS.
*64 bit versions of Linux only.
Pro Step-by-step tutorials
Yousician guides you with easy step-by-step tutorials and gives you exercises that fit your level.
Pro Instant feedback
Get instant feedback on your accuracy and rhythm as you play along with interactive tutorials.
Pro User created content
Many popular songs have been recreated by users for you to try and learn. Access to those is restricted to the premium tier though.
Pro Not only for guitars
Supports pianists, guitarists, bass & ukulele players.
Pro Supports teachers and classes
Has functionality for teacher - student relationships.
Pro Track your progress
You can see how you improve from the very first session and store your musical achievements.
Con No drag'n'drop file upload
Con Value priced premium tier will charge you for the whole year in one lump sum transaction.
Con Free version is quite limited
As with many freemium software you are quite limited of what you can do until you pay.
Still you get limited time a day with all features unlocked. After that feedback feature and unlocking of new content is not available for 12 hours when the timer resets.
Ads restricted to promotion of Premium tier, so no weird "download this crappy app/game" stuff.