Tapbots

Calcbot
PaidIntelligent calculator and unit converter for the rest of us.
Mac
Pastebot
FreeRecall clippings that you have copied before and apply powerful text filters to format before pasting.
MacTweetbot for Twitter
PaidMonitor and manage multiple Twitter accounts.
MacCalcbot -- The Intelligent Calculator and Unit Converter
FreeCalcbot is an intelligent calculator and unit converter for the rest of us.
iOSTweetbot 4 for Twitter
PaidTweetbot is a wonderful Twitter client that's powerful and a joy to use.
iOS