@fredfrog610 I cannot remember that from my review, so it was probably added with an update. Please report that to the author; instead of linking to "Pro" versions at play, there should rather be a more generic "asking for donations" – e.g. linking to a web page giving options, where that Play version could be one of the options.
Btw, I wouldn't exactly count that as advertisement (but then, I didn't see it). It's rather asking to support the dev.
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