Sealogbook is a simple, easy to use software for seafares (all grades at sea). The application will notify you when your certificates is about to expire. This is an easy and safe solution to keep all your certificates in order. The Sealogbook application enables you to log your Certificates and Sea service and export to PDF files. From this level you can easily print both documents (Sea Service and Certificates List) to create a paper backup and reminder. An alert system integrated with your device’s calendar remind you about expired time for each certificate.