The best replacement for study island is ixl.

The best alternatives to study island are rated as following:
★★★★★  ixl
★★★  successmaker
★★★  compass learning
★★  aleks

Your alternative for study island is not listed? Suggest!
Speaking about study island, one probably shouldn't forget about cps.

Other search terms related to study island and their ratings are:
★★★★★ cps
★ promethean
You have in mind a companion for study island and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of study island in all years. Click on graph for more.
study island
ixl
successmaker