Lanbla
AI Phrases Tailored to You
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Type a keyword and AI writes example sentences that fit your level and interests. Practice them as flashcards, and let AI Review collect the words you keep missing.
Practice real-life phrases and words again and again, with help from AI.
Pick from 13 study languages, including English, Korean, Chinese, and Spanish, and learn through flashcard-style repetition. The app can be shown in 6 languages.
■ Key features
・Flashcard practice
Practice phrases and words as cards. Tap "Reveal answer" to see the answer along with key words worth remembering. Hear the pronunciation with the speech button, and save any card to Favorites with one tap.
・Sentences made for you with AI Generate
Enter a keyword, and AI writes example sentences matched to your study language, level, and what you've told it about yourself, grouped into folders by date and keyword.
・AI Review finds your weak spots
Words you start missing are collected automatically in the "AI Review" folder, and drop out once your accuracy recovers.
・Favorites folders and memos
Save phrases and words to your own folders, practice any mix you like, and add a memo to each.
・Built to keep you going
The home screen shows your streak and last 7 days of practice, plus a "Yesterday's MVPs" ranking of the previous day.
・Read-aloud and voice settings
Phrases and words are read aloud in a natural voice. Set the speed and voice (male/female) for each study language.
・Make it yours (paid plans)
Choose the app's main color. Tell the AI about yourself in AI Customize (why you're learning, situations you care about), and AI Generate will fit you even better.
■ Languages
Study (13): English / Korean / Chinese / Spanish / Japanese / French / Italian / German / Esperanto / Tagalog / Russian / Portuguese / Vietnamese
Display (6): Japanese / English / Chinese / Korean / Spanish / French
■ How to use
1. Sign in with Apple or Google, then choose a study language and your current level.
2. Start practicing phrases or words.
3. Have AI write sentences from a keyword, or practice your weak words in "AI Review."
■ Plans and pricing
Prices below are Japan prices. Prices for your country or region are shown in the In-App Purchases section of this page.
You can keep using Lanbla on the free plan as long as you like.
・Free: Up to 50 practice questions a day each for phrases and words (10 per session), AI Generate once a day for up to 5 sentences. Includes ads.
・Lanbla Lite (¥1,100/month, Japan price incl. tax): Unlimited practice (100 per session), AI Generate twice a day for up to 10 sentences, no ads, 3 theme colors, 1 AI Customize slot per study language.
・Lanbla Pro (¥2,200/month, Japan price incl. tax): AI Generate 5 times a day for up to 10 sentences, 9 theme colors, 2 AI Customize slots. Otherwise the same as Lite.
・Lanbla Max (¥4,400/month, Japan price incl. tax): AI Generate 10 times a day for up to 10 sentences, all 15 theme colors including exclusive ones, 4 AI Customize slots. Otherwise the same as Lite.
■ About subscriptions
・Titles and length: Lanbla Lite / Lanbla Pro / Lanbla Max (each auto-renews monthly)
・Price: Lite ¥1,100/month, Pro ¥2,200/month, Max ¥4,400/month (Japan prices, incl. tax). Prices for your country or region are shown in the In-App Purchases section of this page.
・Lanbla Lite includes a 7-day free trial (shown in the app to eligible users). After the trial ends, it renews automatically at the Lite monthly price.
・Payment is charged to your Apple Account. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period.
・To cancel (turn off auto-renew), go to Settings > [your name] > Subscriptions on your device. If you cancel during the free trial, you won't be charged.
・You can change plans within the app.
■ About Support
You can support development from "Support" in the app (optional, one-time, ¥1,000 to ¥100,000; learning features stay the same).
■ Terms of Use and Privacy Policy
Terms of Use: https://lanbla.com/legal/terms
Privacy Policy: https://lanbla.com/legal/privacy
■ Contact
Help and contact: https://lanbla.com/help
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The App Store listing is now available in English, Chinese, Korean, Spanish, and French. Vietnamese has been added as a study language.
The developer, Ryutaro Okumura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Contact Info
- User Content
- Search History
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryutaro Okumura
- Size
- 16.8 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, Japanese, Korean, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Infrequent
Contests
Contains
Advertising
- In-App Purchases
Yes
- Support ¥2,000 $11.99
- Support ¥100,000 $599.99
- Support ¥10,000 $59.99
- Support ¥5,000 $29.99
- Support ¥3,000 $19.99
- Support ¥1,000 $5.99
- Lanbla Lite $6.99
- Lanbla Lite $6.99
- Lanbla Pro $12.99
- Lanbla Max $29.99
- Copyright
- © 2026 Ryutaro Okumura