Clozemaster vs Sottaku
Clozemaster
clozemaster.comSottaku
sottaku.appSide by side
| Figure | Clozemaster | Sottaku |
|---|---|---|
| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | — |
| Plans published | 6 | 7 |
| Spec score · Language learning apps | 9.3 (#6) | 8.4 (#76) |
| Free plan | Yes | Yes |
| Languages offered | 75 | 15 |
| Mobile apps | Yes | Yes |
| Offline lessons | Yes | Yes |
| Personalized review | Yes | Yes |
| Spaced repetition | Sentences move through default review intervals of same day, one day, 10 days, 30 days and 180 days, with Pro customization. | Sottaku says its flashcard system uses the FSRS algorithm to optimize review scheduling. |
| Support | Users can submit account-linked questions, feedback, language requests and feature requests through the contact form. | The developer invites questions, comments, and feedback by email or through X. |
Plans
Clozemaster
- FreeFree
- FreeFree
- Pro Monthly$8 a month
- Pro Yearly$60 a year
- Clozemaster Pro MonthlyPrice not published
- Clozemaster Pro YearlyPrice not published
Sottaku
- FreeFree
- Sottaku ProPrice not published
- Sottaku Pro AnnualPrice not published
- Education (monthly)$8.99 a month
- Sottaku Pro (monthly)$12.99 a month
- Education (annual)$69.99 a year
- Sottaku Pro (annual)$99.99 a year
In their own words
Clozemaster
Clozemaster is a language-learning service built around fill-in-the-blank sentences in context. Learners answer by selecting a choice or typing the missing word, then review sentences again through spaced practice and word-frequency progress tracking. The service lists 75 languages, thousands of sentences in more than 50 languages, and over 170 language pairings. It runs on the web, Android, and iOS, with personalized review and offline lessons. Some sentences have ChatGPT explanations by default, while others can generate an explanation when requested. Sentence and translation data comes from Tatoeba’s user-curated, CC-BY dataset, which may contain errors. The Free plan costs nothing and allows 30 sentences per day.