01 / Look up
Thai Dictionary
Find the meaning. Know how to use it.
See what a word means, hear it spoken, and learn how to use it. Our editorial team adds context and explains the differences between similar words.
Web
Works
What we make
Meet Manao
“Manao” (มะนาว) is Thai for “lime.”
It’s also the name behind our Thai learning apps and online dictionary.
02 / Read
Learn to Read Thai
Make sense of Thai script.
Work through Thai consonants, vowels, and tones one step at a time. Listen to native speakers and practice as you go, until the letters and sounds begin to click.
iOS・Android
03 / Learn
Learn Thai Vocabulary
Learn words you’ll actually use.
Build your vocabulary for everyday conversations, travel, and work. Practice with native-speaker audio and a mix of exercises, then use personalized review to revisit the words you find hardest or are starting to forget.
iOS・Android
Our Approach
How we work
Set a high standard.
We want our products to be clear, useful, and dependable. If something falls short, we keep working on it.
Get the details right.
A clearer explanation, a smoother interaction, a voice that’s easy to follow. The small things shape how a product feels, so we give them our full attention.
Keep listening.
The people who use our products help us see what needs to change. We listen to their feedback and use it to guide what comes next.
About
Company
- Company name
- Heartex Inc.
- Address
- 5F, FPG Links Jinnan, 1-11-4 Jinnan, Shibuya-ku, Tokyo, Japan
- Established
- October 9, 2026
- Representative Director
- Hideki Kinjo
- Business
- Thai learning apps and online services
Representative Director
Hideki Kinjo
金城 秀希
Hideki graduated in industrial management from the University of the Ryukyus. During his studies, he spent a full academic year (two semesters) on exchange at each of two business schools: Shidler College of Business at the University of Hawaiʻi at Mānoa, and Chulalongkorn University’s BBA program in Thailand.
He worked in sales at MinebeaMitsumi, serving automotive parts manufacturers overseas.
Alongside his day job, he launched an app for learning to read Thai.
He later developed healthcare apps and web services at MedPeer, then became a lead engineer at an IT startup.
After launching a Thai vocabulary app and online dictionary, he founded Heartex in October 2026.