Background After childbirth, women undergo substantial physical and emotional changes. Therefore, it is important to provide them with information that helps them identify what is expected during this stage, as well as signs and symptoms that indicate complications after they have been discharged from the hospital. Objective This study aimed to develop a health app—Towards Motherhood—that provides evidence-based information about the postpartum period and evaluate the usability of the app with the target population. Methods This was a validation study involving 80 participants, including 24 professionals from the obstetric health field, 15 professionals from the technology field, and 41 postpartum women. The app was developed using React Native technology. Health professionals evaluated the app’s content using the Content Validity Index, technology professionals completed a validated evaluation to assess the appearance of the app, and postpartum women completed the System Usability Scale (SUS) to measure the usability of the app. Results The measurement of content validity using a Likert scale obtained an approval score of 99%. Regarding the app’s appearance, 92% of responses were positive, reflecting favorable approval. The SUS usability score was 86.2, which represents excellent acceptance. Conclusions The Towards Motherhood mobile app is a valid tool for promoting self-care during the postpartum period. The app’s evidence-based information, user-friendly design, and high usability make it an essential resource for women during this critical stage of their live.

BACKGROUND Introduction: In the postpartum phase, women undergo intense bodily and emotional changes that occur in a truly short phase. Easily accessible and reliable information is important for self-care behaviors to be properly adopted. Objective: Developing a health application with information about the puerperal phase, with content based on scientific evidence. Method: This is a methodological study involving 40 participants, of these 10 obstetric health professionals, 10 in technology and 20 puerperal women. The application was developed with React Native technology. The health participants evaluated the content of the application, the result of which was given by the Content Validity Index, the technology professionals answered the questionnaire validated for the appearance of the software and the puerperal women answered the System Usability Scale (SUS), evaluating the usability of the application. Results: Content validation was mediated by the Likert scale and obtained a score of 0.97. Regarding the appearance of the application, there were 0.86 positive responses, being favorable for approval. Usability was evaluated using the SUS scale where it obtained a score of 98.5. The answers to the questionnaire showed good reliability, according to the validation analysis by Cronbach’s alpha coefficient (value: 0.71), and the application showed excellent acceptance, with an average score of 98.5 on the SUS scale. Conclusion: “Towards motherhood” presents itself as a valid mobile application to promote self-care. OBJECTIVE Developing a health application with information about the puerperal phase, with content based on scientific evidence. METHODS This is a methodological study involving 40 participants, of these 10 obstetric health professionals, 10 in technology and 20 puerperal women. The application was developed with React Native technology. The health participants evaluated the content of the application, the result of which was given by the Content Validity Index, the technology professionals answered the questionnaire validated for the appearance of the software and the puerperal women answered the System Usability Scale (SUS), evaluating the usability of the application. RESULTS Content validation was mediated by the Likert scale and obtained a score of 0.97. Regarding the appearance of the application, there were 0.86 positive responses, being favorable for approval. Usability was evaluated using the SUS scale where it obtained a score of 98.5. The answers to the questionnaire showed good reliability, according to the validation analysis by Cronbach’s alpha coefficient (value: 0.71), and the application showed excellent acceptance, with an average score of 98.5 on the SUS scale. CONCLUSIONS Conclusion: “Towards motherhood” presents itself as a valid mobile application to promote self-care.