Both used to set up an opinion or state a fact based on a previously established perspective or viewpoint. (Judging from/speaking from the point of view of/from the standpoint of/From the look of...)
[~からすると/からして/からすれば」 = More like looking at (set of conditions) /based on/due to/reason for...?
Often used as the grounds for inferring or determining someone's intentions from their expression and demeanour etc ?