Memory Research
These two needs are best served with open source software, as Mnemosyne is completely free and will always remain so in the future, there is no barrier for new users to participate and the algorithm in a next (expensive!) version is really better than the one in the version you already bought.
Abstract
These two needs are best served with open source software. As Mnemosyne is completely free and will always remain so in the future, there is no barrier for new users to participate. Also, thanks to the internet, we can easily gather the anonymous data, without requiring any user intervention (after they gave their initial permission, of course). Secondly, since we have no commercial interest, there is no need for us to claim that the algorithm in a next (expensive!) version is really better than the one in the version you already bought.