Last updated 7 hours ago, automatically updated every 24 hours

Phase 1 (13 courses)

94.4%94.7%95.2%95.7%95.9%96%96.3%
+0.4
Estimated Beta Nov 03, 2014 (9 days)
93.6%93.4%93.5%93.4%93.3%93.3%94.8%
+1.5
Estimated Beta Not enough recent progress to accurately predict
88.3%88.6%90.2%90%91.8%93.5%91.5%
-2.1
Estimated Beta Not enough recent progress to accurately predict
93.5%93.5%93.5%91.1%90.5%90.5%90.6%
+0.1
Estimated Beta Not enough recent progress to accurately predict
76.4%76.4%76.6%76.6%76.6%76.4%76.4%
Estimated Beta Not enough recent progress to accurately predict
43.8%43.8%43.8%43.9%44.4%44.8%44.8%
Estimated Beta Not enough recent progress to accurately predict
40.4%40.4%40.4%40.3%40.4%40.6%40.6%
Estimated Beta Team may be focusing on reverse beta
21.8%21.8%22.1%22.1%22.4%22.7%23.3%
+0.5
Estimated Beta Not enough recent progress to accurately predict
21.1%21.9%22.4%21.7%21.7%21.7%21.7%
Estimated Beta Not enough recent progress to accurately predict
15.7%15.8%16.4%17.1%17.9%18.3%18.6%
+0.3
Estimated Beta May 26, 2015 (213 days)
12.8%12.8%12.9%12.8%12.8%14.4%15.6%
+1.2
Estimated Beta Apr 18, 2015 (175 days)
7.8%7.8%7.8%7.8%7.8%7.8%7.8%
Estimated Beta Not enough recent progress to accurately predict
6.6%6.6%6.6%6.6%6.6%6.6%6.6%
Estimated Beta Not enough recent progress to accurately predict

Phase 2 (21 courses)

Stable 339% 1,550,565 Students
Graduated Dec 19, 2013 in dev Reverse
Stable 317% 780,257 Students
Graduated Jan 08, 2014 in dev Reverse
Stable 291% 754,347 Students
Graduated Feb 01, 2014 in beta Reverse
Stable 258% 561,912 Students
Graduated Mar 03, 2014 soon Reverse
Stable 251% 657,375 Students
Graduated Mar 09, 2014 in beta Reverse
Stable 232% 157,204 Students
Graduated Mar 26, 2014 209+ days Reverse
Stable 227% 158,619 Students
Graduated Mar 31, 2014 soon Reverse
Stable 215% 2,986,562 Students
Graduated Apr 11, 2014 soon Reverse
Stable 204% 211,386 Students
Graduated Apr 21, 2014 soon Reverse
Stable 202% 63,020 Students
Graduated Apr 23, 2014 soon Reverse
Stable 200% 53,356 Students
Graduated Apr 25, 2014 soon Reverse
Stable 184% 58,538 Students
Graduated May 09, 2014 soon Reverse
Stable 173% 368,135 Students
Graduated May 19, 2014 soon Reverse
Stable 165% 341,759 Students
Graduated May 26, 2014 soon Reverse
Stable 149% 261,762 Students
Graduated Jun 10, 2014 soon Reverse
Stable 109% 180,530 Students
Graduated Jul 16, 2014 complete Reverse
Stable 80% 4,726 Students
Graduated Aug 12, 2014 in dev Reverse
Stable 65% 65,626 Students
Graduated Aug 25, 2014 150+ days Reverse
Stable 65% 40,352 Students
Graduated Aug 25, 2014 150+ days Reverse
Stable 42% 50,098 Students
Graduated Sep 15, 2014 38+ days Reverse
Stable 7% 1,724 Students
Graduated Oct 17, 2014 73+ days Reverse

Phase 3 (16 courses)

21,689,849 Students
Graduated Unknown complete Reverse
21,224,733 Students
Graduated Unknown complete Reverse
13,365,909 Students
Graduated Unknown complete Reverse
9,596,224 Students
Graduated Unknown complete Reverse
8,567,863 Students
Graduated Unknown complete Reverse
5,614,983 Students
Graduated Unknown complete Reverse
3,721,624 Students
Graduated Unknown complete Reverse
3,498,334 Students
Graduated Unknown complete Reverse
2,742,239 Students
Graduated Unknown complete Reverse
1,499,990 Students
Graduated May 16, 2014 complete Reverse
1,474,580 Students
Graduated Unknown complete Reverse
982,836 Students
Graduated May 15, 2014 in dev Reverse
663,425 Students
Graduated May 15, 2014 in beta Reverse
464,331 Students
Graduated Jun 30, 2014 in dev Reverse
311,244 Students
Graduated Jun 30, 2014 in dev Reverse
224,221 Students
Graduated Sep 16, 2014 complete Reverse
Total Registered Language Course Students: 104.95 million
Total Active Language Course Students: 22.56 million (approx)

FAQ
Q: When will Language X be added?
A: Short answer we don't know. Duolingo relies on volunteers to build new courses, therefore your desired language will only be added when there are enough capable volunteers to build the course. Duolingo has typically followed a pattern of giving priority to new English courses first. Once that course is complete and tested, the same team can then begin reversing the course, this is the only indication we have of when your course may be added.

Q: How can you know when some reverse courses will be added?
A: They are predictions, we know that Duolingo added the new courses for English speakers after their counter reverse courses had been in beta for 60-100 days, so its reasonable to assume a similar pattern will follow in future. With that said all dates and times on this page are independent of Duolingo, please treat them as such. Never quote dates and times from this page to complain to the Duolingo team or contributors.

Q: How long does a course take to complete?
A: Typically it takes 3-6 months for a course to make its way into beta, it all depends on the amount of free time the team can devote to the new course.

Q: Can I help?
A: If you bilingual and able to write at the level of a native speaker of 2 or more languages you may be able to contribute, follow link to submit an application to the Duolingo team. Otherwise you can help by simply learning a language in beta and submitting any errors or bugs you encounter.

All data is provided Independent of Duolingo & estimated dates may be inaccurate
Created by andrewmof | Designed by ElOtroMiqui | Chart Created by yonoleo | Inspired by J-Steven & Morgengrauen