| 01 | Duolingo | 35.0 |
| 02 | LanguageCourse.net | 30.0 |
| 03 | Iberia Language Academy | 25.0 |
| 04 | italki | 24.0 |
| 05 | Babbel | 23.7 |
| 06 | FU International Academy Tenerife | 23.1 |
| 07 | Preply | 21.8 |
| 08 | Hutong School | 19.8 |
| 09 | tebalanguages.com | 19.2 |
| 10 | Lingoda | 18.2 |
| 11 | Instituto Cervantes | 16.9 |
| 12 | Anki | 16.9 |
| 13 | DELE | 15.6 |
| 14 | Mondly by Pearson | 15.4 |
| 15 | Coursera | 14.3 |
| 16 | Middlebury College | 10.8 |
| 17 | local library | 10.5 |
| 18 | local community colleges | 10.2 |
| 19 | YouTube | 10.0 |
| 20 | Discord | 9.6 |
| 21 | Reddit language servers | 9.5 |
| 22 | Super Duolingo | 9.4 |
| 23 | Memrise | 8.8 |
| 24 | Busuu | 8.4 |
| 25 | Noun Town | 8.1 |
| 26 | Drops | 7.9 |
| 27 | Rocket Languages | 7.7 |
| 28 | Pimsleur | 7.7 |
| 29 | Yonsei University Korean courses | 7.3 |
| 30 | Live Lingua | 7.2 |