Nothing else comes close!

If you use an iPhone this is a no brainer! Buy it.
Updated user interface is now leveraging the direct API which means you get best of both worlds: ad hoc anywhere anytime access or offline DB mode with thousands of caches pre loaded. Gr8 integration with Dropbox for exporting and importing GPX and field notes etc. Now you can deal with photos and trackables at the same time youre logging a geocache!

The mode strip is very convenient for turning the GPS on and off - and the flashlight button kicks butt! Nice touch!

Ive been hoping that I could sort on attributes and favorites and my wish has now come true!

Overall, an amazing and powerful update. The potential is absolutely there. I cant wait to get out and put it through its paces. Hopefully its as reliable and high-performance as the previous version. All indicators are that it will be.

******************************* The one feature I would like to see added is the display of the last few logs in List View using symbols indicating whether a cache was found, not found, or notes. Remains top desire able.
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I dont love the constant compass calibrate screen at most in opportune times! Would love a way to quickly bypass sometimes!!!

My experience caching w iPhone 4/5 is very positive. Battery life is as decent as can be expected. Recommend you invest in aux charger pack for all day sessions.

Integration w navigon and maps is handy. Pick a target cache, using built-in bookmark send target coords to Navigon and let it voice turn by turn get you to nearest drivable spot, then jump back into Geosphere and got get it on bike or foot! Very handy and safer to keep eyes on road rather than GPS unit or phone.

Lately, I have enjoyed speaking or dictating my log entries into the phone. It works very well! Its nice to be able to upload as log in real time now if desired rather than as a field note like before. Since I am a GSAK user I tend to log and load after a day or two all at once, but sometimes, like FTF you want to put something in place quick. No I have no need for ground speaks app at all!!!

Great job. More later on battery life and operation.

kmanchester about Geocaching with Geosphere, v3.1