Upgrade suggestions – Marker Match Review

I like this app & it is easy to use. However, is there a way to look for substitutes between different brands? For example, if I could enter in a Copic marker and it could tell me which Spectrum Noir is the best match (or even which of the same brand re the best matches), this would make this app much more valuable to me. Also, I entered my Spectrum markers into this app, but found that I have many markers that are not listed in this app. Can it be upgraded to include all Spectrum colors, including the triblends?
Review by MelissaTaylor0877 on Marker Match.