Learning and education

#	App	Now	Major outages	Time with problems	Problems
1	Coursera	Working normally	0 min	0 min	0
2	Google Classroom	Working normally	0 min	3 h 27 min	1
3	Kahoot	Working normally	0 min	6 h 10 min	1
4	Thinkific	Working normally	1 h 2 min	12 h 35 min	5
5	Duolingo	Major outage	4 h 58 min	7 h 24 min	2
6	Canvas LMS	Some problems	9 h 48 min	5 days 21 h	30
7	Udemy	Working normally	14 h 53 min	24 h 51 min	4
8	Khan Academy	Working normally	38 h 27 min	17 days 14 h	8
9	Teachable	Working normally	3 days 14 h	3 days 14 h	6

Last 90 days, from each app's own status page. Apps without a full 90-day record yet are listed last, unranked.