100 mg = 1 gram? I think not

How can an app that does conversion mess up one of the most common conversions, mg to grams. I thought I was going crazy when it said 1 gram equals 100 mg. last I looked 1 gram equals 1000 mg. Makes me wonder how many other conversions are wrong on this app. I used to really like this app too before all the annoying ads.

Rccgeo about Convert Units App, v7.5