Memo Book offers a rich-text editor that creates text documents which can be arranged in a tree structure. Each text document can hold attached files. All text documents and attached files are stored in a single file, making it easier to share the content between different devices. If a password is provided, the storage file is encrypted using 256-bit AES encryption, one of the best encryption algorithms available. All these features makes Memo Book suitable, for collecting and organizing notes or storing confidential information. Memo Book is available for Windows and Android.