Ones I know of:https://cryptfolio.com - 11 coins
https://csnapshot.com - cryptsy only
https://myaltcoins.com - has some idea of past transactions and data import
https://cryptrader.com - works of API keys for each exchange (6 exchanges)
http://forum.feathercoin.com/index.php?topic=3689.0 - android app(seems broken atm)- they even mentioned me as there competitor
The reason for the "UUID URL links" is, this way I have no info on you, no email, no address, no username, no password.
Theirs nothing I, or anyone else who may be able to comprise the site can use to target you.
With the services above they almost all require usernames and passwords - if you decide to try them out please use a password manager and
randomly generated passwords.
ive decided to keep the code private, sorry
RE: read only - still want to do it at some stage
UUID is the reason I'm here to be honest!
Plus a developer we can actually talk to.
I'd say yours is running away with it, which is great.
re: Read only - great - can't wait - I can stop taking screenshots and sending to my "investors"

Any luck with the "add +" button beside each qty? So that a user can add more coins to that line without summing up in a calculator beforehand?
Lastly, thought it a good time to throw some Doge your way - 15117.20052668 Sent to your address. Thanks for the great work mate!
http://bitinfocharts.com/dogecoin/tx/163baee6dff7045a53dbb06e52c9146fc00831375b88c405d8d37f52ebe136eb