Altpocket.io
Pro's:
-App and web version
-Social trading functions (follow top traders and get notifications etc)
-Able to talk about the market with other traders
-API import from the biggest exchanges
Delta
Pro's:
-Good design
-Connection with token/ICO teams
Cointracker
-Tax calculator
-Detailed Data
Blockfolio
-Old but good(?)
Not much uniqueness here(?)
I have enough experience in Blockfolio and I like it for altcoins announcement, Sometimes I follow coin tracker. I have no interest on others people interest, only have on others experience from history. You should follow all apps in one time because which apps is suitable for your that couldn't suitable for me.