Lautarium is a computer-based training program designed to support elementary school children with reading and writing difficulties. The program includes a total of 58 progressively structured exercises focused on phoneme perception, phonological awareness, grapheme-phoneme correspondence, as well as phonetic reading and writing, and rapid word recognition ("flash reading"). Interactive instructions and an adaptive task selection facilitate independent use. To motivate users, correct answers are rewarded with virtual tokens, which can be used to "purchase" items for an animated aquarium. The child's training status and progress can be viewed through clearly presented result statistics. The effectiveness of the program has been proven.