Help / Info


Overview / Index




Basic principle of the App


First, you consider what is probably the right answer to each exercise or question set.




Then compare your answer with the model answer shown.



If you mark your answer 'correct', the exercise / question will be presented again for you to answer after a fairly long interval.


If after checking against the model answer you think your answer is 'wrong', you will be set the exercise / question again after a short interval. Remembering the right answer at that point is the first step to long-lasting retention of the information.


The above two pictures show the A and the B side of a virtual 'learning card'.




Multiple learning card sets provided


The mC-LBox App comes with several flash card sets. (A flash card set consists of multiple flash cards on the same topic.) - Here you see already some more card sets:



You can make your own flash cards and card index sets, with the help of PC software memoCARD, see




Number of sections


Sebastian Leitner’s original card index box has five sections. The size of the sections varies: The rear sections can each accommodate a larger number of cards. - If the learning box is used properly, the learning content can be repeated at larger and larger intervals. This type of repetition learning is particularly effective.



The figure above shows a physical learning box; mC-LBox provides you with a virtual learning box, and with up to ten sections! There is also a special 'holding' section.


The mC-LBox App is particularly good for learning by repetition over increasing intervals. It provides you with even greater benefits than the original by Sebastian Leitner Learning Box!






Settings are found under one of the six menu buttons. The 'Settings' menu takes you to the 'Question Intervals' command option.





Question intervals


'Question interval' is the time interval between repetition of the flash cards.  After installation of the memoCARD App, the default settings apply: Ten sections are set up for all learning card indexes, with the question intervals shown below.


You can change the default values for each section at any time, and you can do so individually for each flash card. Only section '1' is fixed at 'immediately' (any time).



Example of a question interval


Let us illustrate a question interval, using the default value for section '10' (= 500 days): A card from section '9' which you have marked 'correct' moves to section '10' and will only be set again at the earliest 500 days after it moved into section '2'(!).




Flash learning


Whatever the question intervals you have set for the different sections, you can use the 'flash learning' setting to repeat all the learning content, and do so one card after another. This is useful, for example, immediately before exams.





Additional 'Holding' section


You can move learning content from section '1'(!) that you think looks too difficult at the time to a special 'holding' section.



You can call up the cards that you have assigned to the 'holding' section at any time.





Audio material


The flash cards can also contain audio material: spoken texts (correct pronunciation, key statements/facts to memorize), bird song, Morse signals, ... You decide whether the audio material is played automatically.




Calling up both sides of the card


You can show the A side first as well as the B side of the flash cards. This is particularly useful in language learning.




Success Revolver


A question from section '1' whose answer you did not know you can have presented again after a few cards, because a short interval is good for memorizing and remembering. - Even if you have a large number of cards in tray '1', you can keep the number of cards to be set again after an interval, by setting a low value for the Success Revolver.




Timer    -    zurück zu: Übersicht / Index


You can set a limit (in seconds) to the time you have to remember an answer. - If you do not answer within the set time before clicking on 'show', you will automatically be shown the model answer. You still have the option to mark your answer 'right' or 'wrong'.




Feedback    -    zurück zu: Übersicht / Index


You can choose to receive tactile, audible and visual feedback (vibration, sound, graphics). Positive feedback reinforces learning, and negative feedback helps you to correct incorrect recall.



You can change the volume of the audible feedback using Android’s general settings.




Separate settings


Setting changes apply only to the flash cards currently in use.




Deleting individual cards


You can delete a single card by clicking for a moment on the image of the card. This brings up the confirmation question to check whether you really want to delete the card.



(Note: To delete an entire flash card set, please use the separate menu button, one of the six menu buttons, see picture above.)




Descriptions of the mC-LBox App in the Android Market








Info / Legal information


mC-LBox was developed by Paul Finkler ( and Reinhold Vogt (  --->>  Legal information



Die Texte wurde freundlicherweise von Frau Alison McDonald's ins Englische übersetzt; danke!