[auto] [ci skip] Generate ARCHIVE

Author: READMEbot

ARCHIVE.md

@@ -166,6 +166,7 @@ This is an archive of the [main list](https://github.com/dkhamsing/open-source-i
 - [Dragon Shout App 2](https://github.com/rblalock/dragon_shout_app_open_source)
 - [DropColour](https://github.com/elpassion/DropColour-iOS)
 - [DrugsNRock](https://github.com/biou/DrugsNRock)
+- [DuckDuckGo](https://github.com/duckduckgo/ios)
 - [Dungeon Crawl](https://github.com/CliffsDover/crawl)
 - [DVD Collection Tracker](https://github.com/chrismiles/OrganisingCoreData)
 - [DWA Mobile](https://github.com/DesktopWebAnalytics/DWA_Mobile)