Notes app that comes with multiple security ie login and encryption of data using Polyalphabetic Substitution Cipher algorithm combined with the ASCII code and the XOR operation in securing the stored contents of the note. So that the data can not be known by anyone other than you.
New Engine
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://sg-res.9appsdownloading.com/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
