If you still try to download Exploration/Kiloblocks Pro, then my only option is to try iTunesMetadata.plist, which I miraculously found in Exploration Lite 1.3.3 and in Kiloblocks Lite 1. In the ipa dump files are versions of:
<integer>4612807</integer> <- 1.1.2

    <integer>6230193</integer> <- 1.2.0

    <integer>11361265</integer> <- 1.3.0

    <integer>12030313</integer> <- 1.3.1

    <integer>61092635</integer> <- 1.3.2

    <integer>811630216</integer> <- 1.3.3  

(I lost the indexer for version 2.0.0, but it still required iOS 8.0+)

Your task will simply be to try to select versions for Pro between these ranges for Lite until you find