A free app for Android, by Nemo Apps LLC.
This is a useful app for learning the basics of Thai, the official language of Thailand. The words are organized into groups, and you can choose to learn the words in either Thai or English. If you are just starting to study Thai, then you should start with the basic sentences and phrases.
You will learn the basic greetings and how to ask for and respond to a drink. You will also learn the most useful verbs and how to conjugate them.
This app is very easy to use, and it will not take much of your time. You can also add the words to your favorites so you can review them later.
The app also has a built-in translation function. You can select any word and click on the translation button to translate it into English.