Solo Speak - Speak Japanese
Build your own phrasebook
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Going to Japan? Type what you want to say in English and AI turns it into natural Japanese. Practise out loud with speech recognition until it sticks — before you fly.
■ Build the Japanese phrasebook for your trip, then say it out loud before you fly
Getting the right Japanese phrase is easy. ChatGPT, translation apps and travel blogs will all tell you what to say.
The hard part is still yours: turning it into something YOU would say, keeping it where you can find it,
and getting it from your screen into your mouth so it comes out when it matters.
Solo Speak is built for that part.
■ Start from what YOU want to say
At the convenience store. Ordering at a counter. Asking someone the way.
Type the thing you want to say, in English, in your own words.
AI turns it into Japanese in three styles — standard, polite and casual —
so you can pick the one that fits the moment and save it.
If the nuance is off, tell the AI and it reworks the wording.
Every phrase you save is one you actually plan to use.
■ Say it out loud until it sticks
Practise your saved phrases by speaking them.
Speech recognition checks what you said, and each success adds a star.
Five stars means you've got it. Each session is just five phrases,
so it fits into any spare moment before your trip.
A daily reminder at the time you choose helps you keep the habit.
■ Stuck? Ask the AI right there
"Does this sound natural?" "What would I say in this situation?"
Ask any question that comes up while you study.
Expressions from the answer can be tapped and saved straight to your phrasebook.
■ Weekly reports show your progress adding up
Every Monday, a report arrives to help you keep going.
Compare phrases mastered and times spoken against the week before,
and get suggested rephrasings plus expressions worth learning next.
One read sets the direction for your week.
■ Who it's for
- People planning a trip to Japan who want to do more than point at the menu
- People moving to Japan for work, study or a working holiday
- People who can read some Japanese but freeze when it's time to speak
- People who want to learn only the phrases they'll actually use
■ Languages
Japanese comes first, but the same workflow works for English, Korean, Chinese (Simplified and Traditional),
Spanish, French, German, Italian, Portuguese, Thai, Hindi and Indonesian — 13 languages in total.
The app interface is available in the same 13 languages.
■ Pricing
For 24 hours after signing up, you can try 3 phrase generations and 5 AI assistant messages for free.
After that, saving phrases, practising and pronunciation checks stay free.
AI-powered features (phrase generation, AI assistant, detailed explanations
and weekly reports) are available with Solo Speak Premium, an auto-renewing
monthly subscription. The price is shown on the purchase screen in the app
and on the App Store product page.
Subscribing adds a further 3-day free trial.
Terms of Use: https://solo-speak.com/terms
Privacy Policy: https://solo-speak.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Minor improvements and stability fixes.
The developer, Kohei Fujiwara, 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:
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kohei Fujiwara
- Size
- 61.9 MB
- Category
- Education
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 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
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Solo Speak Premium $7.99
- Copyright
- © 2026 Kohei Fujiwara