The best replacement for idx is rets.

The best alternatives to idx are rated as following:
★★★★★  rets
★★★★  vow
★★★★  anton bauer
★★★  eido
★★  idf
★  ddf
  meditech
  ez cap

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

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



Google Trends

Scale is based on the average worldwide traffic of idx in all years. Click on graph for more.
idx
rets
vow