Sullivan Japanese: AI Tutor
Koji Okamoto Education iPhoneiPadiPod touch
Sullivan Japanese: AI Tutor is a free Education app for iPhone and iPad by Koji Okamoto. Requires iOS 17.0. Updated October 19, 2026.
- Price
- Free
- on the App Store
- Size
- 15 MB
- Age 4+
- Updated
- Oct 19
- 2026 · v2.3.2
Screenshots
About Sullivan Japanese: AI Tutor
Sullivan Japanese is a learning app for everyone studying Japanese. Read, write, listen and speak — learn Japanese you can actually use, adapted to your level. ■ Graded by AI, instantly Get specific, sentence-by-sentence feedback on your writing and speaking in seconds. ■ Always the right question AI reads your ability across four skills and serves only the problem you should solve now — never too easy, never too hard. ■ Practice by talking with AI An AI partner that weaves your own mistakes into a natural conversation, so you actually speak. ■ A habit that sticks A daily plan and quests show what to do today, while streaks, XP, weekly leagues and achievements make studying a game you look forward to. ■ Built so you never get lost Furigana readings and an interface in English, Chinese or Vietnamese keep beginners moving. Learn every day for free. Premium unlocks unlimited practice, AI grading and AI tutor. Start with 7 days free. Premium is an auto-renewable subscription (Monthly ¥980 / Yearly ¥5,800, with a 7-day free trial). Payment is charged to your Apple ID and auto-renews unless turned off at least 24 hours before the end of the period. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Privacy Policy: https://nihongo.sensei-sullivan.com/privacy?lang=en Terms of Use (EULA): https://nihongo.sensei-sullivan.com/terms?lang=en
What’s new
Version 2.3.2 · Updated October 19, 2026
• Faster app launch, and the next question now appears sooner after you answer. • In Practice, choosing a vocabulary group (such as 慣用句) now gives you questions from that group only. • Improved stability
App privacy
The developer, Koji Okamoto, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Purchases: Purchase History
- Contact Info: Email Address, Name
- User Content: Audio Data, Other User Content
- Identifiers: User ID
Used for: Analytics, Product Personalization, App Functionality
Alternatives to Sullivan Japanese: AI Tutor
Looking for apps like Sullivan Japanese: AI Tutor? Here are 6 similar apps on the App Store. The highest rated is 银妆日语 (5.0/5), and 5 of the 6 are free to download.
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Sullivan Japanese: AI Tutor | – | Free | October 19, 2026 | |
| FontMaster | – | Free | Jul 14, 2025 | Compare |
| NihonGO Dokusho | – | Free | Aug 26, 2026 | Compare |
| ECHO 日本語AI会話 | – | Free | Aug 23, 2026 | Compare |
| 银妆日语 | 5.0 / 5 (2) | Free | Oct 18, 2026 | Compare |
| KanaRush | 5.0 / 5 (1) | 0.99 USD | Nov 5, 2025 | Compare |
| JLPT N2 Vocabulary 3000 | – | Free | Sep 1, 2026 | Compare |