App Store (Hobby Projects)


The following apps have over two million unique users to date. 

Big Brother  (info)  -  4.0 Stars  -  Available on the App Store ($0.99)
ShareCal  (info)  -  4.0 Stars  -  Available on the App Store ($2.99)
iTrackMail  (info)  -  4.5 Stars  -  Available on the App Store (Free)
WiFi Camera  (info)  -  4.0 Stars  -  Available on the App Store ($0.99)
Punch 'Em!  (info)  -  3.5 Stars  -  Available on the App Store (Free)
iDemonstrate  (info)  -  4.5 Stars  -  Available on the App Store (Free)
Geekologie  (info)  -  4.5 Stars  -  Available on the App Store (Free)
PrankMailer  (info)  -  n/a  -  Rejected from the App Store

Open Source


DAKeyboardControl   -  1207 Watchers - 163 Forks  -  On: GitHub / CocoaControls
DACircularProgress  -  1109 Watchers - 148 Forks  -  On: GitHub / CocoaControls
iHasApp  -  851 Watchers - 139 Forks  -  On: GitHub / CocoaControls
DAAppsViewController - 406 Watchers - 63 Forks - On: GitHub / CocoaControls
DAAnisotropicImage  -  311 Watchers - 23 Forks  -  On: GitHub / CocoaControls
DAModularTableView  -  228 Watchers - 29 Forks  -  On: GitHub / CocoaControls
DAReloadActivity  -  177 Watchers - 27 Forks  -  On: GitHub / CocoaControls
DAAutoScroll  -  138 Watchers - 19 Forks  -  On: GitHub / CocoaControls
DALinedTextView - 113 Watchers - 19 Forks - On: GitHub / CocoaControls

Services


SleepBot
A simple way to track your sleep with your mobile phone. Android + iOS + Web

iHasApp
iOS service that lets developers detect apps that are currently installed on their users' devices.