Letrus is a literacy app developed to support children and beginners in the structured and efficient process of learning to read and write. With a progressive methodology, the app works on recognizing the letters of the alphabet, associating sounds and spellings, forming syllables, building words, and reading simple sentences. The activities are organized by levels, respecting each student's pace and allowing for gradual progress. Letrus stimulates phonological awareness, fine motor coordination in writing, and vocabulary expansion through practical, interactive, and objective exercises. Ideal for use at home or as a school supplement, the app offers progress tracking, positive reinforcement, and daily practice, contributing to the construction of a solid and secure foundation in the literacy process.