Memoria is a simple flash-card app. It's meant to support custom-made question sets, as a personal aid when learing, focusing on learing languages.
The focus of the app is on simplicity and responsiveness. We don't use social network site integrations or notifications. On the other hand, it's possible to easily extract all your questions and answers, in case you'd like to migrate to some other flash-card app. It should also be possible to trivally self-host, if you don't trust us with your data.
Memoria does not use passwords. Each account has a list of associated emails. Each of those emails can be used to log in. This way you're not locked into a single email provider.
Once you create your account, you'll be able to create a question set. Then you can add questions to the question set. Once you're happy with the question set, you can click "test" and the app will ask you questions you've defined. The app will prioritize questions you are not memorized yet. Each question has a score, which initially is zero. Once you answer the question correctly, the score will go up, max 1.0.