The best replacement for ultrasurf is tor.

The best alternatives to ultrasurf are rated as following:
★★★★★  tor
★★★★  hotspot shield
★★★  freegate
★★  spotflux
★  gpass

Your alternative for ultrasurf is not listed? Suggest!
Speaking about ultrasurf, one probably shouldn't forget about bittorrent.

Other search terms related to ultrasurf and their ratings are:
★★★★★ bittorrent
★★★★★ proxifier
★★ utorrent
You have in mind a companion for ultrasurf and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ultrasurf in all years. Click on graph for more.
ultrasurf
tor
hotspot shield