island
a free and opensource alternative to parellel space
9 Alternatives To island
AirProxy
Dedicated mobile 4G/LTE proxies
AllAccounts
AllAccounts is an extension that allows Firefox to connect to websites using different user names.
Multifox
Multifox is an extension that allows Firefox to connect to websites using different user names.
Multiloginapp
Connect to websites as a multitude of different users
Nold
Nold offers a smartphone based access control system for both personal and business use.
Oxylabs
Data center proxies, residential proxy, Real-Time Crawler
Parallel Accounts
Parallel Accounts created by Ima TechInnovations for those who want to run multiple accounts of the same app simultaneously on a single phone with just a single tab to switch between the apps.
Session Box
Using websites with multiple accounts at the same time is made easy.
Shelter
Isolate your Big Brother Apps