The best replacement for greenify is battery doctor.

The best alternatives to greenify are rated as following:
★★★★★  battery doctor
★★★★  juice defender
★★★★  battery guru
★★★  clean master
★★★  du battery saver
★★★  greenify
★  seeder

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

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



Google Trends

Scale is based on the average worldwide traffic of greenify in all years. Click on graph for more.
greenify
battery doctor
juice defender