Summing more than few numbers is always problematic on a ordinary calculator. Especially if you want to add some values that need to be multiplied or divided before adding!
"Easy Sum" can be very useful when you when you calculate for an invoice, bill, shopping list or something similar. “Easy Sum” is not an ordinary calculator but specific for summing.
+ Add and see numbers in list format prevent duplication mistakes
+ Disable/Enable desired entry to compare the different results
+ Delete any entry one by one, by swiping on the entry (from right to left)
+ Add positive or negative values by selecting entry sign
+ Add description for the value you've entered.
+ Distinction negative entries by automatic red colouring
+ Pack/Unpack sum items to create infinite summing.
Future Request: Please post on (Support URL) http://apps.dejaworks.com/easy-sum-ios-application/
+Code clean up.