Last updated 10 hours ago, automatically updated every 24 hours

Phase 1 (13 courses)

93.4%93.8%94.1%94.4%94.7%95.2%95.7%
+0.5
Estimated Beta Oct 31, 2014 (9 days)
93.5%93.5%93.4%93.6%93.4%93.5%93.4%
-0.1
Estimated Beta Not enough recent progress to accurately predict
92.7%92.8%93.5%93.5%93.5%93.5%91.1%
-2.4
Estimated Beta Not enough recent progress to accurately predict
89.1%89.1%89.3%88.3%88.6%90.2%90%
-0.1
Estimated Beta Not enough recent progress to accurately predict
76.6%76.4%76.4%76.4%76.4%76.6%76.6%
-0
Estimated Beta Not enough recent progress to accurately predict
42.6%43%43.3%43.8%43.8%43.8%43.9%
+0.1
Estimated Beta Not enough recent progress to accurately predict
40.4%40.4%40.4%40.4%40.4%40.4%40.3%
Estimated Beta Not enough recent progress to accurately predict
20.5%20.6%21.7%21.8%21.8%22.1%22.1%
Estimated Beta Not enough recent progress to accurately predict
18.2%20.9%20.9%21.1%21.9%22.4%21.7%
-0.7
Estimated Beta Not enough recent progress to accurately predict
14%14.3%14.9%15.7%15.8%16.4%17.1%
+0.7
Estimated Beta Jun 30, 2015 (251 days)
12%12.4%12.8%12.8%12.8%12.9%12.8%
-0.1
Estimated Beta Jul 05, 2015 (256 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 336% 1,526,877 Students
Graduated Dec 19, 2013 in dev Reverse
Stable 314% 772,515 Students
Graduated Jan 08, 2014 in dev Reverse
Stable 287% 746,979 Students
Graduated Feb 01, 2014 in beta Reverse
Stable 254% 555,000 Students
Graduated Mar 03, 2014 soon Reverse
Stable 248% 649,895 Students
Graduated Mar 09, 2014 in beta Reverse
Stable 229% 153,936 Students
Graduated Mar 26, 2014 210+ days Reverse
Stable 224% 155,425 Students
Graduated Mar 31, 2014 soon Reverse
Stable 212% 2,953,906 Students
Graduated Apr 11, 2014 soon Reverse
Stable 201% 209,436 Students
Graduated Apr 21, 2014 soon Reverse
Stable 198% 61,378 Students
Graduated Apr 23, 2014 soon Reverse
Stable 196% 52,046 Students
Graduated Apr 25, 2014 soon Reverse
Stable 181% 57,572 Students
Graduated May 09, 2014 soon Reverse
Stable 170% 360,529 Students
Graduated May 19, 2014 soon Reverse
Stable 162% 335,705 Students
Graduated May 26, 2014 soon Reverse
Stable 146% 257,262 Students
Graduated Jun 10, 2014 soon Reverse
Stable 106% 173,702 Students
Graduated Jul 16, 2014 complete Reverse
Stable 76% 4,440 Students
Graduated Aug 12, 2014 in dev Reverse
Stable 62% 35,366 Students
Graduated Aug 25, 2014 150+ days Reverse
Stable 62% 55,372 Students
Graduated Aug 25, 2014 150+ days Reverse
Stable 39% 45,528 Students
Graduated Sep 15, 2014 41+ days Reverse
New
Stable 4% 1,092 Students
Graduated Oct 17, 2014 76+ days Reverse

Phase 3 (16 courses)

21,570,305 Students
Graduated Unknown complete Reverse
21,106,461 Students
Graduated Unknown complete Reverse
13,293,887 Students
Graduated Unknown complete Reverse
9,546,770 Students
Graduated Unknown complete Reverse
8,520,991 Students
Graduated Unknown complete Reverse
5,586,703 Students
Graduated Unknown complete Reverse
3,701,936 Students
Graduated Unknown complete Reverse
3,480,142 Students
Graduated Unknown complete Reverse
2,730,367 Students
Graduated Unknown complete Reverse
1,485,702 Students
Graduated May 16, 2014 complete Reverse
1,458,884 Students
Graduated Unknown complete Reverse
965,302 Students
Graduated May 15, 2014 in dev Reverse
655,095 Students
Graduated May 15, 2014 in beta Reverse
456,533 Students
Graduated Jun 30, 2014 in dev Reverse
304,554 Students
Graduated Jun 30, 2014 in dev Reverse
219,361 Students
Graduated Sep 16, 2014 complete Reverse
Total Registered Language Course Students: 104.25 million
Total Active Language Course Students: 22.41 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