Best of Show in its category!
One aspect of Skritter I like very much is this: If you don't have much time at all for a while to delve into full lessons with grammar and vocabulary, but you want to avoid seeing the progress you made slowly fading, using Skritter just to drill the character-writing aspect of learning Chinese is REALLY useful. Skritter will remember which characters you fail most, fail a little or nearly got perfectly (criteria adjustable in the settings). Your job is to practice every day until your writing reaches the "Gold / No Error" mark. Trust me, it's astonishing how fast, with the help of Skritter's "Spaced Repetition" system, you can actually start remembering, effortlessly, how to properly write the character in the correct stroke order, its meaning, and review the fun, mnemonic-like sentences that sometimes help an anchor your memory. If you want/need to keep up with your Chinese language proficiency levels and keep progressing, Skritter is a required tool in you panoply of Chines apps. Hope the above will help you see the value in paying to subscribe for the year. It is not cheap, but worth every cent if you use it regularly. Enjoy!