Parallel Space - Parallel Space – Multiple accounts and Two-Face is free to use mobile app that helps you clone or run multiple accounts of the same app simultaneously, and use themes to style your unique space.
Workona - A better way to work in the browser.
App Cloner - Clone your Android apps so you can use multiple logins.
Session Buddy - Manage Your Browser Sessions
2Accounts - 2Accounts is an up-to-the-mark tool that enables its global users to enjoy multiple accounts for messaging, multi-gaming, and run a double social account for work and personal life.
Toby - Better Than Bookmarks