Only the current version so far — new entries appear as the app ships updates.
Nut - Smart Tracker is a tools app by Beijing Zizai Technology Co.,Ltd. with 500,000+ downloads (about 781K estimated). +841 installs in the last 7 days. Rated 3.9 from 6.7K ratings. Released Oct 29, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “Easily Find, Never Lost!”