· 6 min read
Best App to Learn Thai: What to Check
By Language Lab editorial team
Best app to learn Thai: seven things to check before you choose, what Thai asks of an app, official material to pair it with and a one-week test.
The best app to learn Thai is the one that trains the five tones with your own voice. In Thai the pitch of a word is part of the word, so an app you can complete in silence will not teach you to be understood. Thai takes time for an English speaker: the US State Department places it in Category III, hard languages, and allows about 44 weeks, or 1,012 class hours. Check seven things before you choose: tones taught from the first day with audio, spoken practice with a response, a clear plan for the Thai script, self-testing, spaced review, real-life situations and the polite endings. Pair the app with Chulalongkorn University's free beginners' course, and try it for a week before you pay.
What Thai asks of an app
- Tones first. Thai has five tones, and the pitch of a word is part of the word.
- Speech before script, or both together. Chulalongkorn University's free beginners' course starts with a phonetic spelling and adds the script later.
- The polite endings. They belong in the first lessons.
- Simple grammar used well. Word order is similar to English and there are no verb or noun endings, so an app can get you speaking quickly.
Seven things to check
| Check | What to look for |
|---|---|
| Speaking | You say sentences aloud and get a spoken or written response, in situations you will meet. |
| Audio | A recording for every word and sentence, so that you can hear and copy the tones. |
| Writing system | A clear route into the Thai script, after or alongside a phonetic spelling, with audio throughout. |
| Self-testing | The app makes you produce the answer before it shows it. |
| Spaced review | Old material comes back after days and weeks, not only in the lesson where you met it. |
| Real situations | Lessons are built on things you will do: meeting people, shopping, travelling, working. |
| Levels | Stages are named, and you can see how they relate to an official scale or exam. |
Why testing and spacing come first
A 2013 review of ten learning techniques, led by John Dunlosky, rated two as high utility: practice testing and distributed practice. Rereading and highlighting were rated low. So an app that makes you produce an answer, and brings items back after a gap, is using your time better than one that lets you tap through and move on.
Test an app in one week
- Day 1: do the first lesson. Did you speak aloud, or only tap?
- Day 2: start a new lesson. Did the app bring back yesterday's material?
- Day 3: check the audio. Is every Thai sentence recorded, and can you replay it?
- Day 4: look for the level map. Can you see where the course ends?
- Day 5: try to say five sentences from memory. If you cannot, the app is not testing you enough.
- Day 7: decide. Keep the app only if you spoke every day.
Pair it with official material
- Communicative Thai for Foreigners: a free beginners' video course in eleven lessons, from Chulalongkorn University with the Thailand Foundation.
- A Guide to Thai, from the BBC: archived pages on the five tones, with 20 key phrases and audio.
- The Sirindhorn Thai Language Institute's online reading practice test.
Aim at a level
The main Thai test for foreigners is the CU-TFL, run by the Sirindhorn Thai Language Institute at Chulalongkorn University. In Thailand, listening, reading and writing are tested under the name TH-TFL, and speaking is tested separately as CU-TFL; reports are valid for 2 years. If you need the test, choose an app that covers reading and writing in Thai script as well as speech.
A note on our own app
Language Lab is our app, so judge it by the same list. Language Lab's Thai course is built around voiced real-life scenarios with an AI tutor. Use the one-week test above on it as you would on any other.
Frequently asked
What is the best app to learn Thai?
The one that makes you speak Thai aloud, tests you before showing the answer, brings old material back for review and shows you clear levels. Try it for a week before paying.
Can I learn Thai tones from an app?
Only from an app that plays every word and makes you say it. Thai has five tones and the pitch is part of the word, so silent practice does not work.
How long does it take to learn Thai?
The US State Department places Thai in Category III and allows about 44 weeks, or 1,012 class hours. An app does not shorten that; it helps you use the time well.
Are free Thai apps enough?
Official learning material is a strong start: Communicative Thai for Foreigners is one example. Whatever you use, check that you are speaking and being tested.
What features matter most in a language app?
Practice testing and spaced review, the two techniques a 2013 research review rated as high utility, and spoken practice with a response.
Can an app make me fluent in Thai?
An app can carry your daily practice. You will also need conversation with people and a structured course or exam target for the higher levels.
Sources: US Department of State, National Foreign Affairs Training Center, Foreign Language Training; Chulalongkorn University, Sirindhorn Thai Language Institute, CU-TFL and TH-TFL; Thailand Foundation, Communicative Thai for Foreigners; BBC Languages, A Guide to Thai (archived); Dunlosky et al., Psychological Science in the Public Interest, 2013. Checked on 13 October 2026. Photo: Boat in Phang Nga Bay, Krzysztof Golik / CC BY-SA 4.0 (Wikimedia Commons).
