Here is the full list of all 11 Rytmik Ultimate achievements.
Connect to Rytmik Cloud
Rate one song at least
Rate ten songs at least
Rate 25 songs at least
Rate 100 songs at least
Give 5 stars to three songs at least
Give 5 stars to ten songs at least
Give 5 stars to 25 songs at least
Upload three your own songs at least to Rytmik Cloud and receive an average rating above 3 stars
Upload five your own songs at least to Rytmik Cloud and receive an average rating above 4 stars
Upload ten your own songs at least to Rytmik Cloud and receive an average rating above 4 and half stars