I've been a happy user of Locus for years.
While geocaching, there's a little thing that misses and that would help to chase FTF. It would be nice to have a mean to follow the "Not have been found" status of newly published cache. A way to do that would be to :
- highlight cache on map and on list with no 'found it" log
- automatically refresh these caches status on a periodic basis
There is an IOS app providing this kind of feature : cachly. This is the only time I envy IOS enthusisasts !