OTO Navi - Sound Navigator v1.1.7
The Japan Times Publishing
About this app
Developer Description
App for listening to audio material of books from The Japan Times Publishing
●How to use OTO Navi●
It’s three easy steps: 1. Search for the book / 2. Download the audio material / 3. Play it!
1. Search for the book
You can easily search the database for the target book by either entering a keyword (title, author, or ISBN) or scanning the bar code on the book you own. If searching by bar code, scan the upper bar code of the two printed on the book’s back cover.
2. Download the audio material
You can download either the full set of audio material for the book, or just the sections you want. If downloading the full set, you may want to use a WiFi connection.
3. Play it!
OTO Navi offers several handy playback features to aid your studies, including 3-second skipping back/forward and repeating of a single track, a single section, or all sections.
What's New
・Improved matching for text format variations (full-width/half-width, kanji/katakana, etc.)
・Supports multi-keyword AND search
・Author name search added
・Fixed an issue where continuous playback did not work correctly on some devices
Version Information
- Version
- 1.1.7
- Downloads
- 100K+
- Updated on
- Jan 8, 2026
- Released
- Dec 15, 2019
- Requires
- Android 7.0
Statistics
Google Play Rating History
Rating Distribution
Downloads Over Time
OTO Navi - Sound Navigator has been downloaded times. Over the past 30 days, it averaged downloads per day.
Shaded area shows 30-day prediction based on historical trends
Historical data collection started recently. More data points will be available over time.
OTO Navi - Sound Navigator users say on Google Play
Vadim Aia
Very good and convenient application to use. There was some small problem when my downloaded lessons dissappear and some of it won't download again. But I wrote to genki email and they responded immediately with suggestion of removing the book and add it again. It worked perfectly! Not sure why some people so angry here in comments section. Simple key is polite communication. Mistakes happens in every app. Anyway, great app!
Federico Favaro
Great app to hear native pronunciation while studying Japanese. I'm giving 4 stars because at the moment the application is a little barebone. To get 5 stars I would suggest the addition of user playlisting functionality. This would allow users to, for example, make a "vocabulary" playlist containing all the audio of the vocabulary they have studied so far, so they don't need to go back and forth between lessons to find the content they need.
Tim Renken
The app is great, but it really needs an option to read what is being said. Being able to visually see the words typed out would be much more helpful than just hearing them
Ivo
I had downloaded audio for two books but it all disappeared by itself, so I have to redownload everything. Now some lessons are failing to download at all. Really low quality app that lags when downloading too. Just give us raw mp3 downloads and be done with it, would be a much better experience.
Majd Saadat
Whenever I try to download any of the audio files, the app instantly cancels the download. All of the book pictures are missing and replaced with an exclamation mark icon instead. I also tried to open the FAQ shown in the app and it led me to a page which said "Page Not Found". Edit: The app is now working but still no reply to my email so other people with the same problem won't have a fix.
ApkTrusted Ratings & Reviews
More from The Japan Times Publishing
See more apps
Scan this QR code to download
Forwarding you to the page at Google Play market in seconds...
Open Google Play market now