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Editors' Review · September 25, 2026

Efficient ROT13 Encryption Tool for Android Users

Jesteri Kesstr is an Android utility app that specializes in ROT13 encryption, providing a simple and efficient way to obfuscate text. Designed for quick encryption and decryption, it features user-friendly one-tap controls and seamless clipboard integration. This makes it particularly suitable for students, developers, and casual users who require basic text hiding capabilities without any complex setup or registration. The app operates entirely offline, ensuring user privacy and immediate access without the need for an internet connection.

The core functionality of Jesteri Kesstr revolves around the ROT13 substitution cipher, which replaces letters with the 13th letter following them in the alphabet. Its straightforward interface allows users to quickly convert text and clear fields with ease, making it an ideal tool for educational purposes or social media obfuscation. However, it should be noted that while the app is efficient for casual use, it lacks the security features necessary for safeguarding sensitive information.

Enlarged image for Jesteri Kesstr
Jesteri Kesstr 0/1

Technical

Title
Jesteri Kesstr 1.0 for Android
Requirements
Android 17.0
Language
English
Available languages
English
License
Free
Latest update
Author
JUNA TECHNOLOGIES LIMITED
SHA-1
3ba88320dbd1fe03b54d5a0961be5ad236fedab8
Filename
com.jesteri.kesstr_1.0.xapk

Program available in other languages



Changelog

We don’t have any change log information yet for version 1.0 of Jesteri Kesstr. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.

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