The pixel readout is frankly poor on both apps: false color here and there. Probably both apps use the same library behind the scenes. On RT I can crank up the demosaic algorithms to reduce the effect. DT has no similar filter available.
DT also used to not do a good job on lens corrections (I have an X100T). Perhaps this new version does better since there was a mention in the changelog about lens data.
The best pictures are still the SOOC JPEGs -- too bad if I want to adjust the shadows or highlights.