Language Support
Playto supports 12 UI languages, but feature quality varies per language depending on the underlying open-source models. This page lists the current support tier for each feature, plus a reference of widely-used proficiency exams.
Last updated: April 27, 2026
Tier definitions
Stable
Native-level quality, in production, continuously improved.
Functional
Practical for learning, not native-level — noticeable to native speakers.
Beta
Working but quality improvements ongoing — natives will notice issues.
Experimental
Limited functionality, no quality guarantee, on improvement roadmap.
Unsupported
Feature not yet available — alternative or future support planned.
Feature matrix
Status as of the current release. Tiers will be upgraded as upcoming TTS overhaul work for CJK languages ships.
| Language | OCR | Translation | TTS | Pronunciation | Dictionary |
|---|---|---|---|---|---|
| English | Stable | Stable | Stable | Stable | Stable |
| 日本語 1 | Stable | Stable | Functional | Beta | Stable |
| 中文 (简) 1 | Stable | Stable | Functional | Beta | Stable |
| 한국어 2 | Stable | Stable | Unsupported | Beta | Stable |
| Español 3 | Stable | Stable | Functional | Beta | Stable |
| Français 3 | Stable | Stable | Functional | Beta | Stable |
| Italiano 3 | Stable | Stable | Functional | Beta | Stable |
| Português (BR) 3 | Stable | Stable | Functional | Beta | Stable |
| Deutsch 2 | Stable | Stable | Unsupported | Beta | Stable |
| Русский 2 | Stable | Stable | Unsupported | Beta | Stable |
| Polski 2 | Stable | Stable | Unsupported | Beta | Stable |
| Tiếng Việt 2 | Stable | Stable | Unsupported | Beta | Stable |
- Dedicated voice available; pitch accent (JA) and tone (ZH) expression has limits — improvement planned via the upcoming TTS overhaul.
- The current TTS engine does not support this language, so the in-app TTS button is disabled. Integration of a dedicated TTS engine for this language is planned for a future update.
- TTS voice mapping was recently extended. Not native quality, but practical for learning use.
Proficiency exam reference
Major standardized exams per language. Playto does not currently tie packs or learning content to specific levels — level estimation per pack and level-aware SRS difficulty are planned for a future update.
| Language | Major exams | Levels | Playto today | Future |
|---|---|---|---|---|
| English | CEFR (A1–C2), TOEIC, TOEFL, IELTS | 6 (CEFR) | No pack-level mapping | Planned: level estimation |
| 日本語 | JLPT (N5–N1), J.TEST | 5 (JLPT) | No pack-level mapping | Planned: level estimation |
| 中文 (简) | HSK 3.0 (1–9) | 9 | No pack-level mapping | Planned: level estimation |
| 한국어 | TOPIK (1–6) | 6 | No pack-level mapping | Planned: level estimation |
| Español | DELE / SIELE (CEFR A1–C2) | 6 | No pack-level mapping | Planned: level estimation |
| Français | DELF / DALF (CEFR A1–C2), TCF | 6 | No pack-level mapping | Planned: level estimation |
| Italiano | CILS, CELI (CEFR A1–C2) | 6 | No pack-level mapping | Planned: level estimation |
| Português (BR) | CELPE-Bras, CIPLE | 4–5 | No pack-level mapping | Planned: level estimation |
| Deutsch | Goethe-Zertifikat (A1–C2), TestDaF | 6 | No pack-level mapping | Planned: level estimation |
| Русский | TORFL / TRKI (A1–C2) | 6 | No pack-level mapping | Planned: level estimation |
| Polski | Certyfikat (A1–C2) | 6 | No pack-level mapping | Planned: level estimation |
| Tiếng Việt | CEFR-V framework | 6 (CEFR-V) | No pack-level mapping | Planned: level estimation |
Roadmap
- Upcoming — CJK TTS overhaul: improved pitch accent for Japanese, tone marker integration for Chinese, and a dedicated TTS engine for Korean.
- Future — DE / RU / PL / VI TTS: dedicated TTS engine integration based on user demand.
- Future — Proficiency level estimation: per-pack level metadata (CEFR / JLPT / HSK / TOPIK), level-aware SRS difficulty.
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