Hi!
Im a pretty advanced chinese learner with a vocabulary of 3000+ characters, and a whole lot of words. I need a tool to test myself regularly to "keep in shape".

I tried the demo but the characters and words were all very basic. How many words and characters do you have in your lists?

Also, do you have any function were you actually have to type out the pinyin of a character?

Also, does skritter have any progress function so that you can keep track of what characters you need to work more on, and stuff like that?

Thank you in advance

Hello Maybe.

I am in your general range of words and characters. We have a few others who are as well. Also, I am slowly but surely sliding into the "just using it to keep in shape" category.

It has a practice your pinyin section. It is called reading.

It has a progress function that keeps track of raw percentages. It tracks your retention rate on each of the four major categories: tones, reading, writing, definitions. It also tells you the number of words and characters you have uploaded.

The algorithm just hands you what it feels you need to practice at the moment. Pretty much, it streamlines the practice process so you can stay in decent shape without having to waste time managing your vocabulary. I think it is very useful for that. I had a hard time keeping up with all of my reviews before Skritter. It streamlined things enough that it isn't too bad now.

When you first start uploading your vocabulary you will have to mash the too easy button. It won't know these are easy characters for you and ask you to do tons of reps. Once that phase is done, though, it works fairly well for keeping the edge on your characters and vocabulary. I recommend trying it for a month or two.

Chinese: I'm not sure how many definitions for words we have in English, but probably somewhere around 75-100k. For characters, we've upwards of 7000 and adding more all the time.

Check out this page for a bit more info on the basic progress / review tracking idea:
http://www.skritter.com/spaced-repetition

Don't limit yourself to the demo page. Skritter has tons of vocab lists (tons of new things for you too) and is very practical whether you are just trying to keep in shape or learn entirely. You will probably surprise yourself as to what you remember and don't.

Skritter is awesome, I am so glad to have found this tool that don't consider the monthly payment a payment, but a donation for such an awesome tool.

It's probably also worth noting that it is very easy for users to add words or short phrases themselves if they aren't yet in the system.

The biggest hurdle for you will be teaching Skritter what you already know. Once you've got all of the stuff you know into Skritter's database, you'll be money - anything you know that it doesn't have can be added. Any of the few characters you might know that aren't in Skritter, if there are any, will need to be added into the system by the team, but they're excellent about customer service like that - I'm talking number one in my experience of online services by magnitudes - so getting characters added shouldn't be too much trouble.