Hello Sir,
Just two ideas, tied together. 

Currently I am playing 4th ed with a group, and we will be switching to 5e after a total group wipe, or we retire the charters.  Since very few people in our group have anything related to the next edition my DM is talking about keeping things as basic as possible, and this may mean just races and classes out of the PHB.  Your app is able to import files that contains content from all available sources. 

First, is it possible to note where the info comes from, such as Human race would be PHB, while the Goliath is from EE.  The second request is related to this - being able to search, and filter, based on the source, so I could include, or exclude, results from different sources. 

Do you plan to do much more work on the charter sheet section?  I am using another app that does good with the basics, such as race, class, background, stats, and basic equipment, yet falls flat when it comes to magical items and spells.  It knows that based on a race you get a bonus to one or two ability scores, and that with a certain class you may get this or that skill.  It helps in creating a new charter.  I am not asking you to re-invent the wheel, yet with all of the information already collected it would be nice to see it more fully utilized, and can surpass what is already out their.

Thanks for considering my two requests based on the source of the material.