Learn the Japanese Kanji using mnemonic phrases!
For every character you receive an explanation of its components and a mnemonic phrase. This makes the learning much easier! It also reduces the risk of confusing the characters.
At the writing drill you get the meaning of a character shown and you can drawn the kanji with the finger on the screen. You confirm if you knew or did not know that sign and will get your repetitions accordingly.
The very useful radical-function allows you to learn grouped by radicals. Many users confirm that this further improves the learning speed.