KotoVelluna is made and published by masahiro ito. AppBrain is an independent app data site and isn't affiliated with masahiro ito. The app name, icon, screenshots and description belong to masahiro ito and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 25, 2026
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Also available on Google Play
Releases
Updates seen on the App Store- Version
- 1.5.2
- Launched
- August 2026
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 163.2 MB
- Content rating
- Everyone
Technologies used by KotoVelluna
About the app and developer
About KotoVelluna
KotoVelluna is an education app developed by masahiro ito.
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The app has no ratings yet.
App Information
KotoVelluna is freely available from the App Store. The app size is 163.19 MB. The latest version available is 1.5.2. The last update was on October 25, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since August 2026.
Developer information for masahiro ito
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Store listing
By masahiro ito, from the App Store
Screenshots by masahiro ito, from the the App Store listing
Description by masahiro ito Written by the developer, not by AppBrain. Click to read.
KotoVelluna is a playful vocabulary app for children from age 2.
Look at pictures, listen to words, and connect them in a word-chain puzzle. The app supports learning Japanese, English, and Vietnamese.
The interface and help are available in 36 languages: Japanese, English, Vietnamese, Simplified Chinese, Traditional Chinese, Indonesian, Korean, Thai, Filipino, Hindi, Burmese, Malay, Brazilian Portuguese, French, German, Spanish, Nepali, Persian, Bengali, Urdu, Arabic, Polish, Swedish, Finnish, Lithuanian, Italian, Dutch, Turkish, Danish, Norwegian, Czech, Romanian, Sinhala, Tamil, Khmer and Mongolian. Learning content is available in three languages: Japanese, English and Vietnamese.
■ Learn with pictures and audio
Tap a tile to see a picture and hear the word. Children can become familiar with words by looking and listening, even before they can read.
■ Play a word-chain puzzle
Move neighboring tiles to connect the end of one word to the beginning of the next. Pictures and audio provide helpful clues while children play.
■ Choose settings for each child
Listening levels and Japanese or English word-chain levels can be selected separately. Vietnamese word-chain play is not divided into levels. A letter-helper setting lets parents adjust the amount of support.
■ Make time to think in the age of AI
As AI becomes part of everyday life, make time for children to think for themselves.
Word-chain puzzles put your thinking to the test as you recall words and work out which ones connect. With pictures and audio as clues, children can ask, “Which word comes next?” and enjoy that “I did it!” moment when the words fit together.
Reduce the letter clues to enjoy the puzzle as a listening and memory game.
It’s not just word play for children—it’s a fun brain workout for adults, too. Why not put your heads together and enjoy some family puzzle time?
The free version includes 15 listening words and 20 word-chain words in the base learning language. It is not a time-limited free trial.
Premium is a paid monthly or yearly subscription that gives access to all words and levels in Japanese, English and Vietnamese.
There are no ads.
One-time purchases are not subscriptions. Each V1 learning purchase unlocks only that language’s words, levels and current V1 paid features, without an expiry date. Other learning languages are separate purchases.
Choose among 36 display languages. This does not unlock learning content in other languages.
Requires at least one V1 learning-language purchase.
Switch with active Premium, or with a V1 learning-language purchase and the translation pack.
Bug fixes and minor improvements may be provided. Maintenance, updates and support for new OS versions may end for older versions. Features added in V2 or later require a separate purchase.
Buying V1 does not automatically cancel an active subscription. If you no longer need it, cancel or manage it separately in the App Store.
Current prices are campaign prices. No end date or post-campaign prices have been decided.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://ray-app-lab.sakura.ne.jp/wordchain/privacy_policy.html#en
Look at pictures, listen to words, and connect them in a word-chain puzzle. The app supports learning Japanese, English, and Vietnamese.
The interface and help are available in 36 languages: Japanese, English, Vietnamese, Simplified Chinese, Traditional Chinese, Indonesian, Korean, Thai, Filipino, Hindi, Burmese, Malay, Brazilian Portuguese, French, German, Spanish, Nepali, Persian, Bengali, Urdu, Arabic, Polish, Swedish, Finnish, Lithuanian, Italian, Dutch, Turkish, Danish, Norwegian, Czech, Romanian, Sinhala, Tamil, Khmer and Mongolian. Learning content is available in three languages: Japanese, English and Vietnamese.
■ Learn with pictures and audio
Tap a tile to see a picture and hear the word. Children can become familiar with words by looking and listening, even before they can read.
■ Play a word-chain puzzle
Move neighboring tiles to connect the end of one word to the beginning of the next. Pictures and audio provide helpful clues while children play.
■ Choose settings for each child
Listening levels and Japanese or English word-chain levels can be selected separately. Vietnamese word-chain play is not divided into levels. A letter-helper setting lets parents adjust the amount of support.
■ Make time to think in the age of AI
As AI becomes part of everyday life, make time for children to think for themselves.
Word-chain puzzles put your thinking to the test as you recall words and work out which ones connect. With pictures and audio as clues, children can ask, “Which word comes next?” and enjoy that “I did it!” moment when the words fit together.
Reduce the letter clues to enjoy the puzzle as a listening and memory game.
It’s not just word play for children—it’s a fun brain workout for adults, too. Why not put your heads together and enjoy some family puzzle time?
The free version includes 15 listening words and 20 word-chain words in the base learning language. It is not a time-limited free trial.
Premium is a paid monthly or yearly subscription that gives access to all words and levels in Japanese, English and Vietnamese.
There are no ads.
One-time purchases are not subscriptions. Each V1 learning purchase unlocks only that language’s words, levels and current V1 paid features, without an expiry date. Other learning languages are separate purchases.
Choose among 36 display languages. This does not unlock learning content in other languages.
Requires at least one V1 learning-language purchase.
Switch with active Premium, or with a V1 learning-language purchase and the translation pack.
Bug fixes and minor improvements may be provided. Maintenance, updates and support for new OS versions may end for older versions. Features added in V2 or later require a separate purchase.
Buying V1 does not automatically cancel an active subscription. If you no longer need it, cancel or manage it separately in the App Store.
Current prices are campaign prices. No end date or post-campaign prices have been decided.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://ray-app-lab.sakura.ne.jp/wordchain/privacy_policy.html#en