Last updated 7 hours ago, automatically updated every 24 hours

Phase 1 (23 courses)

Estimated Beta Imminent
95.6%95.6%96.8%96.7%96.8%97.2%97.5%
+0.3
Estimated Beta Not enough recent progress to accurately predict
92.8%92.8%92.8%92.8%92.8%92.8%92.8%
Estimated Beta Not enough recent progress to accurately predict
86.5%86.5%86.5%86.6%86.6%86.6%86.6%
Estimated Beta Not enough recent progress to accurately predict
79.3%79.8%80.4%80.9%81.5%81.8%81.4%
-0.4
Estimated Beta Not enough recent progress to accurately predict
76.6%76.6%76.6%77.3%73.6%74.7%75.1%
+0.4
Estimated Beta Apr 29, 2015 (61 days)
65.4%65.6%65.8%66%66.1%66.1%66.1%
Estimated Beta Not enough recent progress to accurately predict
65.3%65.5%65.5%65.5%65.6%65.7%65.7%
+0
Estimated Beta Not enough recent progress to accurately predict
65.7%65.6%65.8%65.7%65.7%65.5%65.6%
+0.2
Estimated Beta Not enough recent progress to accurately predict
55.3%55.3%55.3%55.3%55.3%55.5%56.2%
+0.8
Estimated Beta Not enough recent progress to accurately predict
46.4%49.3%50.3%51.2%52.6%53.5%55.6%
+2.1
Estimated Beta Mar 31, 2015 (32 days)
51.4%51.8%52%52.6%53.2%53.5%53.7%
+0.2
Estimated Beta Jun 06, 2015 (99 days)
48.6%48.7%48.9%48.9%49.1%49.4%49.8%
+0.4
Estimated Beta Team may be focusing on reverse beta
44.3%44.5%45%45.1%45.1%46%46.1%
+0.1
Estimated Beta Apr 13, 2015 (45 days)
38.2%39.8%41.4%41.9%42.3%43.4%43.4%
+0
Estimated Beta May 26, 2015 (88 days)
36.2%36.6%36.7%36.7%36.8%36.8%36.9%
+0.1
Estimated Beta Not enough recent progress to accurately predict
35.9%35.9%36%36%36.2%36.4%36.4%
-0
Estimated Beta Not enough recent progress to accurately predict
25.8%27.2%30%30.4%31%32.8%32.8%
+0
Estimated Beta Apr 20, 2015 (52 days)
27.5%27.5%27.5%27.5%27.5%27.5%27.5%
Estimated Beta Not enough recent progress to accurately predict
15%15.1%15.2%15.2%15.2%15.3%15.2%
-0
Estimated Beta Not enough recent progress to accurately predict
9.7%10.6%11.2%11.3%11.2%11.2%12%
+0.8
Estimated Beta Oct 15, 2015 (230 days)
1.3%1.4%1.5%1.9%2.2%2.2%2.4%
+0.1
Estimated Beta Jan 24, 2016 (331 days)
Estimated Beta Course not started

Phase 2 (12 courses)

Stable 428% 1,214,681 Students
Graduated Feb 01, 2014 in beta Reverse
Stable 395% 946,968 Students
Graduated Mar 03, 2014 soon Reverse
Stable 389% 1,135,791 Students
Graduated Mar 09, 2014 in beta Reverse
Stable 370% 328,168 Students
Graduated Mar 26, 2014 184+ days Reverse
Stable 352% 4,586,600 Students
Graduated Apr 11, 2014 soon Reverse
Stable 339% 170,362 Students
Graduated Apr 23, 2014 soon Reverse
Stable 321% 129,480 Students
Graduated May 09, 2014 soon Reverse
Stable 303% 815,255 Students
Graduated May 26, 2014 soon Reverse
Stable 286% 597,922 Students
Graduated Jun 10, 2014 in dev Reverse
Stable 217% 21,914 Students
Graduated Aug 12, 2014 in dev Reverse
Stable 145% 45,688 Students
Graduated Oct 17, 2014 soon Reverse
Stable 123% 45,869 Students
Graduated Nov 06, 2014 in dev Reverse

Phase 3 (27 courses)

28,988,503 Students
Graduated Unknown complete Reverse
28,351,945 Students
Graduated Unknown complete Reverse
17,467,649 Students
Graduated Unknown complete Reverse
12,637,318 Students
Graduated Unknown complete Reverse
11,279,375 Students
Graduated Unknown complete Reverse
7,201,023 Students
Graduated Unknown complete Reverse
4,956,870 Students
Graduated Unknown complete Reverse
4,809,980 Students
Graduated Unknown complete Reverse
3,401,665 Students
Graduated Unknown complete Reverse
2,745,749 Students
Graduated Nov 06, 2014 in dev Reverse
2,439,220 Students
Graduated May 16, 2014 complete Reverse
2,367,784 Students
Graduated Unknown complete Reverse
2,079,440 Students
Graduated May 15, 2014 in dev Reverse
1,233,327 Students
Graduated Dec 10, 2014 in dev Reverse
1,120,687 Students
Graduated May 15, 2014 complete Reverse
956,807 Students
Graduated Jun 30, 2014 in dev Reverse
841,335 Students
Graduated Dec 17, 2014 in dev Reverse
737,872 Students
Graduated Jun 30, 2014 in dev Reverse
562,880 Students
Graduated Dec 02, 2014 in dev Reverse
551,744 Students
Graduated Jan 20, 2015 complete Reverse
550,247 Students
Graduated Sep 16, 2014 complete Reverse
430,952 Students
Graduated Jan 16, 2015 150+ days Reverse
344,851 Students
Graduated Jan 27, 2015 in dev Reverse
321,142 Students
Graduated Jan 26, 2015 soon Reverse
277,716 Students
Graduated Jan 23, 2015 150+ days Reverse
246,542 Students
Graduated Feb 03, 2015 150+ days Reverse
127,254 Students
Graduated Dec 12, 2014 in dev Reverse
Total Registered Language Course Students: 147.07 million
Total Active Language Course Students: 31.62 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