Only the current version so far — new entries appear as the app ships updates.
Ecz Library is a books & reference app by BinaryWorld Innovations with 10,000+ downloads (about 20K estimated). +45 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “App contains past papers/ Pamphlets/ Books/ Quiz / Ai Chart Bot”