Why InputDojo
Renshuu is one of the best-value Japanese apps ever made: an enormous free tier covering JLPT vocab, kanji, and grammar with adaptive SRS, plus games and one of the friendliest learner communities around. InputDojo covers similar JLPT ground but is built around a different core: reading real Japanese. Import any article or YouTube video, tap words to save them, and let SRS pick them up — so your study list comes from content you actually chose, not just curated lists. If Renshuu's dense interface or lack of a content reader is what's holding you back, that's the gap InputDojo fills.
Feature comparison
| Feature | InputDojo | Renshuu |
|---|---|---|
| JLPT vocab & kanji (N5–N1) | Free, full lists | Free, very complete |
| Grammar study | N5–N1 + AI explanations | Extensive library + SRS |
| Reader for real content | Yes — URL, YouTube, PDF | No |
| Vocab from your own content | One-tap save while reading | Manual list building |
| Games & community | No | Shiritori, crosswords, active community |
| Other languages | 14 (Chinese, Korean, etc.) | Japanese only |
| Interface | Modern, minimal | Feature-dense, takes learning |
| Price | Free tier + 14-day Pro trial | Generous free, Pro ~$8/mo |
Based on publicly available Renshuu feature documentation as of 2026. Compare directly before choosing.
Best for
Learners who want Renshuu-style JLPT coverage but built around reading actual Japanese content — or who bounced off Renshuu's dense interface.
FAQ
Is Renshuu's free tier better than InputDojo's?+
Renshuu's free tier is famously generous for structured JLPT drilling — honestly one of the best free deals in language learning. InputDojo's free tier includes full JLPT/HSK/CEFR tracks too; where it pulls ahead is the reader and studying vocab from your own content.
Does InputDojo have Renshuu's games and community?+
No — Renshuu's games and community are unique to it and a real reason people stay. InputDojo is focused on reading, lookups, and SRS rather than social features.
Can I study for the JLPT with InputDojo alone?+
Yes — full N5–N1 vocab, kanji, and grammar coverage with SRS, plus reading practice on real content, which the JLPT reading section rewards heavily.