Sites that are supported by snaptube download are as follows

1. Facebook
2. Whatsapp
3. vine.co
4. liveleak.com
5. soundcloud.com
6. dailytube.in
7. 3gpmania.co
8. instagram.com
9. vevo.com
10. pinguda.com 
11. Youtube.com
12. twitter.com
13. mrpopat.in
14. tune.pk
15. mrpopat.in
16. mthai.com
17. dailymotion.com

Snaptube is a free and free video download application, music