FullRecall is a software that can help you memorize the knowledge for lifelong periods with the minimum time investment. Underlying artificial neural network gradually grasps your forgetting curve to schedule optimal days for the reviews–i.e., days when you will be close to forgetting an information.
The problem of forgetting

We do forget. Nothing stays in our brain forever without reviews. If something is important to you, you'll think about it from time to time—these repetitions, conscious or not, will reinforce your memory of this fact. We often come across new information and we want to keep it in memory even though we may not need it for the next weeks, months or even years. In order to not forget we have to do repetitions. However, how much time spent on repetitions is optimal? What is the optimal time of a review?

FullRecall is the solution here. Ensures that you remember new things, but don't forget what you have already memorized. Reviews are scheduled on days when you're close to forgetting, so sometimes you may actually forget an information, but FullRecall learns from these mistakes, self-corrects scheduling, to minimize chances of such lapses in the future.
In practice: how does work with FullRecall look like?

The software is similar to common flashcard programs: knowledge is stored in question-answer pairs. You add the question-answer pairs yourself (coming up with a concise, clear-cut question-answer pair, for every information, is a learning experience by itself), or use ready-made question-answer collections. In review mode you'll have presented the questions, one by one. To every question you'll think about an answer, and after a while you'll be confronted with the correct answer. After seeing the correct answer, you'll be asked for a grade that estimates how well you remembered the correct answer. The grade gives FullRecall a feedback. The program stores also other data, given current grade is able to schedule next optimal review time (and later learn itself if there was a mistake: if scheduled interval was too long or too short—i.e., if your grade on the next review is below or above "good"). With FullRecall you can learn new things fast, without worrying about repetitions of what you remember—the software assures that even if you forget something that is in your FullRecall learning database, you'll be soon reminded about it.
Price

Price is US$35. Free version has the following limitations:

    database size up to 500 elements
    no network import/export: you cannot keep your learning database on a FullRecall server
    no searching by "fuzzy matching"
    no possibility to add images
    no possibility to merge databases
    no access to the online version

Selected features of the PC version

    scheduling of repetitions is taken care of by neural network that learns about your pace of learning
    support for Unicode (without support for bi-directional text), open file formats, images, sounds
    text formatting (bold, underline, strikeout)
    possibility to do almost everything from keyboard
    multi-platform (Windows, Linux, FreeBSD, Mac OS X (x86), Maemo (beta), and less powerful non-PC versions: Pocket-PC, online on the web, Android (beta))
    network import/export
    auto-backups with compression
    graphical and textual statistics
    auto-grab-clipboard mode to facilitate in rapid creation of question-answer collections
    search supporting regular expressions and "fuzzy search"
    no external dependencies, possibility to work from an USB memory stick without installing on every new computer
    program is lightweight and fast; further development takes place, so you can expect new features and improvements

You are welcome to read what the users say or start gathering knowledge effectively with the help of FullRecall by downloading the program now.

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This text is copied from the project website http://fullrecall.com/ on 25.10.2011.