
Description: Locknote is a free, open-source, encrypted notebook app for Windows, Mac, Linux, iOS and Android. It allows securely storing notes, tasks, passwords and more behind a master password.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: TheLetterEncrypter is a free, open-source encryption software that allows users to encrypt text messages using a simple letter substitution cipher. It provides a basic level of security for short messages.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API