deftapps.com
Ping - network reachability test
FreePing is a network administration utility used to test the reachability of a host on an IP network.
iOS
Good Grapher - scientific graphing calculator
FreeGood Grapher - great and very powerful scientific graphing calculator. It will become your reliable assistant from elementary school to university...
iOS
Good Grapher Pro - scientific graphing calculator
PaidGood Grapher - great and very powerful scientific graphing calculator. It will become your reliable assistant from elementary school to university...
iOS
