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Try apps powered by AI
📢 Calling for Android Beta Testers
We’re looking for beta testers to try our pre-release Android apps. Your feedback helps us make these apps better before launch.
→ All beta apps in one place (bilingual)
History Reincarnation
Android Beta — testers wanted
An experiential RPG where AI recreates the lives of historical figures. Live as Oda Nobunaga, Napoleon, Cleopatra and more, and rewrite history with your own choices.
Train Quiz (駅地図)
Android Beta — testers wanted
A railway quiz where you find the station on the map. Each station you conquer is recorded, and your scores are ranked across iPhone, iPad, and Android players.
Tap to learn Joho-I (タップで情報I)
Android Beta — testers wanted
A learning app for Japan’s Common Test “Information I” pseudo-code. Build up programming skills tap-by-tap, no typing required.
→ How to join the beta (Japanese page)
🆕 Featured Apps
Bungo wa Shiru (文豪はしる)
★ Featured
Anyone can write a novel with AI. Tap once and the story you want unfolds — perfect for fans who want to write stories starring their favorite characters.
→ Read more about Bungo wa Shiru (Japanese article)
→ Download on the App Store or Google Play
📱 Released Apps
Our complete catalog of apps currently available on the App Store and Google Play.
→ See the full app list with icons (bilingual)
- DungeonLang — AI generates quiz questions tailored to you
- Oshi Maker (推しメーカー) — AI recreates your favorite character
- PR Maker (PRメーカー) — Turn “what you want to convey” into PR copy
- Shoron Sensei (小論先生) [iOS / Android] — AI writes essay drafts
- Bungo wa Shiru (文豪はしる) [iOS / Android] — AI auto-novel writing app
- Mugen Tairiku (無限大陸) — Build your own stage in this story RPG
- Cho Log (ちょうログ) — Bowel-movement tracking and self-care
- Quiz Lab (クイズラボ) — Generate quizzes across genres with AI
- History Reincarnation (歴史転生) — Live the life of a historical figure
- Multi-language Talk (多言語トーク) — Instant translation
- Shukatsu no Mikata (就活のみかた) — AI helps with your résumé
- Kikaku no Mikata (企画のみかた) — AI assists with planning
- Daihitsu Doll (代筆ドール) — Letter ghost-writing
- AI Izakaya (AI居酒屋) — Snack recipe generation
- Kenko Recipe (健康レシピ) — Recipes tailored to your needs
- AI Diary (AI日記帳) — Multi-language diary
- AI Vocab Book (AI単語帳) — Supports 16 languages
- AI Vocab Support — For English speakers
- Quiz Japanese Hot Springs (クイズ日本の温泉) — Travel industry exam prep
- Map Game (地図ゲーム) — Quiz on the map
- Train Quiz (駅地図) — Railway route map quiz
📰 News
Latest updates. Items marked (Japanese) are available only in Japanese.
- 2026-05-27 — Tap to learn Joho-I (Information I) Android beta tester recruitment (Japanese)
- 2026-05-16 — AI novel app “Bungo wa Shiru”: Auto-generate stories starring your favorite character (Japanese)
- 2026-05-16 — Calling for Train Quiz Android Beta Testers!
- 2026-05-11 — Calling for History Reincarnation Android Beta Testers!
- 2024-04-14 — Released Shukatsu no Mikata (job-hunting helper) (Japanese)
- 2024-04-14 — Train Quiz ranked #2 in Appliv’s 2024 “Learn About Trains” app ranking (Japanese)
- 2024-02-24 — Website renewal opened (Japanese)
📬 Contact & Legal
- Contact form
- FAQ (Japanese)
- Terms of Service (Japanese)
- Privacy Policy (Japanese)
Note: Our Terms of Service and Privacy Policy are written in Japanese only. Key points about external services (Firebase, AdMob) and account deletion are summarized in Article 7 of the Privacy Policy.
🌐 日本語 | English