Idiom is a fun and effective language learning app available on iPhone. Developed by The Language Co Inc, it falls under the category of Education & Reference. With a focus on building vocabulary and fluency, Idiom offers a range of features to enhance language learning.

One of the main highlights of Idiom is its versatility. Users can learn from a variety of sources, including news articles, novels, Instagram, and WhatsApp. The app also allows users to translate any word into over 100 languages with just a tap. Additionally, users have the option to study only the words that align with their vocabulary goals.

Idiom aims to improve language fluency by providing context and native pronunciations while studying vocabulary. The app utilizes word cards and spaced repetition techniques for quick memorization. Moreover, users can access over 40 offline dictionaries for comprehensive learning.

For a more immersive experience, Idiom offers interlinear translations to help users read quickly. The app also allows for translating phrases directly within the app, enabling users to better understand the meaning. With its enjoyable interface, Idiom encourages users to read more, making language learning a fun experience.

While the app is free to use, there are premium upgrades available. These upgrades offer higher-fidelity translations and text-to-speech features. Users can try these services for free for one week, and afterward, they are available for a small monthly fee. The app's privacy policy and terms of service can be found on the developer's website.

Overall, Idiom is a comprehensive language learning app that offers a range of features to improve vocabulary and fluency. With its user-friendly interface and versatile learning options, it is a valuable tool for those looking to learn a foreign language.