IMHO the best solutions are from Qlik's partners. Some of the geospatial ones like GeoQlik, Analytics8 offer the most flexibility. There are other good ones too on http://market.qlik.com.
For 'free ones' you could go for a trial with one of the partners or find an extension that someone has already written. There is a new site that Qlik hosts for extensions called branch.qlik.com. You may find some there as well as github.com and here too (community).