AnkiDroid: Open source flashcards app
Score: 14
Created: Jan 18 '16 at 2:52
Clicks per day: 0.61 (1,017 total)
Wiktionary: Help write the free dictionary
Score: 20
Created: Jan 18 '16 at 8:28
Clicks per day: 2.12 (3,520 total)
Language Learning Stack Exchange
Score: 9
Created: Aug 6 '16 at 12:42
Clicks per day: 0.44 (642 total)