PARALLEL SPACE is one of the top tool on android.
You can install two Instagram,two WhatsApp,two snap chat and two coc account and multiple accounts of any game.
Features of PARALLEL SPACE
- Small size-2 mb
- Storage manager to manage app data
- Powerful,stable and easy to use
- Change app default look with custom theme
App link is here- http://market.android.com/details?id=com.lbe.parallel.intl