Last updated 21 hours ago, automatically updated every 24 hours

Phase 1 (17 courses)

90.4%91.7%93.6%93.8%93.8%95.1%95.1%
Estimated Beta Feb 11, 2015 (12 days)
89.1%89.2%89.6%89.6%89.6%89.6%89.6%
Estimated Beta Not enough recent progress to accurately predict
81.7%81.7%81.7%82.2%83.4%83.8%83.9%
+0.1
Estimated Beta Mar 04, 2015 (33 days)
81.3%81.3%81.7%82.3%82.6%82.9%83.2%
+0.3
Estimated Beta Not enough recent progress to accurately predict
72.2%72.7%73%73%73%73.3%73.4%
+0.1
Estimated Beta Apr 17, 2015 (77 days)
62.9%62.9%62.9%62.9%62.9%62.9%62.9%
Estimated Beta Mar 20, 2015 (49 days)
60.3%60.4%61.5%61.7%61.9%62%62.1%
+0
Estimated Beta Jun 02, 2015 (123 days)
60.1%60.2%60.8%60.9%61.1%61.3%61.7%
+0.4
Estimated Beta Not enough recent progress to accurately predict
57.6%57.9%57.9%58.7%58.7%58.8%58.9%
+0.1
Estimated Beta Jun 10, 2015 (131 days)
49.7%49.7%50.5%50.6%50.9%51%51.2%
+0.2
Estimated Beta Not enough recent progress to accurately predict
42.6%42.9%42.9%42.9%42.9%42.9%42.9%
-0
Estimated Beta Team may be focusing on reverse beta
32.4%32.6%33%33.6%35.2%36.1%36.9%
+0.8
Estimated Beta Apr 22, 2015 (82 days)
19.1%21.8%23.1%23.1%24.3%24.4%24.5%
+0.1
Estimated Beta Jun 07, 2015 (128 days)
7.5%10.5%11.2%13.7%15.3%18.3%18.6%
+0.3
Estimated Beta Mar 13, 2015 (42 days)
12.2%12.3%12.3%12.4%12.5%12.9%13%
+0.2
Estimated Beta Not enough recent progress to accurately predict
4.6%4.1%4.1%4.1%4.1%4.1%4.2%
+0.1
Estimated Beta Team may be focusing on reverse beta
New
Estimated Beta Course not started

Phase 2 (13 courses)

Stable 397% 1,091,025 Students
Graduated Feb 01, 2014 in beta Reverse
Stable 364% 857,580 Students
Graduated Mar 03, 2014 soon Reverse
Stable 358% 999,207 Students
Graduated Mar 09, 2014 in beta Reverse
Stable 339% 284,764 Students
Graduated Mar 26, 2014 188+ days Reverse
Stable 321% 4,252,128 Students
Graduated Apr 11, 2014 soon Reverse
Stable 308% 143,566 Students
Graduated Apr 23, 2014 soon Reverse
Stable 291% 110,858 Students
Graduated May 09, 2014 soon Reverse
Stable 272% 635,853 Students
Graduated May 26, 2014 soon Reverse
Stable 256% 531,288 Students
Graduated Jun 10, 2014 in dev Reverse
Stable 186% 16,270 Students
Graduated Aug 12, 2014 in dev Reverse
Stable 172% 200,044 Students
Graduated Aug 25, 2014 150+ days Reverse
Stable 114% 32,058 Students
Graduated Oct 17, 2014 soon Reverse
Stable 92% 19,819 Students
Graduated Nov 06, 2014 in dev Reverse

Phase 3 (26 courses)

26,771,247 Students
Graduated Unknown complete Reverse
26,676,045 Students
Graduated Unknown complete Reverse
16,453,821 Students
Graduated Unknown complete Reverse
11,759,212 Students
Graduated Unknown complete Reverse
10,626,321 Students
Graduated Unknown complete Reverse
6,809,359 Students
Graduated Unknown complete Reverse
4,642,000 Students
Graduated Unknown complete Reverse
4,455,188 Students
Graduated Unknown complete Reverse
3,239,695 Students
Graduated Unknown complete Reverse
2,453,903 Students
Graduated Nov 06, 2014 in dev Reverse
2,182,916 Students
Graduated May 16, 2014 complete Reverse
2,144,236 Students
Graduated Unknown complete Reverse
1,806,912 Students
Graduated May 15, 2014 in dev Reverse
1,115,221 Students
Graduated Dec 10, 2014 in dev Reverse
1,025,183 Students
Graduated May 15, 2014 complete Reverse
830,507 Students
Graduated Jun 30, 2014 in dev Reverse
714,713 Students
Graduated Dec 17, 2014 in dev Reverse
630,646 Students
Graduated Jun 30, 2014 in dev Reverse
465,309 Students
Graduated Sep 16, 2014 complete Reverse
463,200 Students
Graduated Jan 20, 2015 complete Reverse
415,604 Students
Graduated Dec 02, 2014 in dev Reverse
346,274 Students
Graduated Jan 16, 2015 150+ days Reverse
New
300,044 Students
Graduated Jan 26, 2015 soon Reverse
New
297,421 Students
Graduated Jan 27, 2015 soon Reverse
New
179,236 Students
Graduated Jan 23, 2015 150+ days Reverse
109,698 Students
Graduated Dec 12, 2014 soon Reverse
Total Registered Language Course Students: 136.09 million
Total Active Language Course Students: 29.26 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