It is endemic to Guinea as it is known with certainty only from Nzérékoré in the southern part of the country,[1][2] although it is likely that it occurs in adjacent Liberia and western Ivory Coast.

Common name soror reed frog has been coined for this species.

[2] Taxonomic status of this species described by French herpetologist Paul Chabanaud in 1921 is unsettled.

The Amphibian Species of the World treats Hyperolius soror as a valid species but notes that Hyperolius wermuthi might be its synonym.

[2] The AmphibiaWeb, however, considers it a nomen dubium, but acknowledges that it might be the correct name for Hyperolius wermuthi.