Only the current version so far — new entries appear as the app ships updates.
IELTS Collocations - meaning is an education app by LimboSoftware Ltd. with 50,000+ downloads (about 61K estimated). +54 installs in the last 7 days. Released Dec 15, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “a dictionary helpful in looking up the English collocation for IELTS test”