A significant number of users, approximately 15%, report problems with the pronunciation feature, which often fails to work properly or produces unclear sounds. This issue affects the app's usability for those relying on auditory learning.

The pronunciation feature often fails, making it hard to understand the words.

Around 20% of users express frustration over the app's heavy reliance on premium features, which limits access to essential functionalities like word repetition and pronunciation without a subscription.

Most features require a premium subscription, making it hard to learn without paying.

Approximately 10% of users experience issues with managing word collections, such as collections being replaced or renamed unexpectedly, which disrupts their learning process.

Custom collections are often replaced by default ones, causing confusion.

About 8% of users are dissatisfied with the quality of definitions provided, finding them overly simplistic or incorrect, which undermines the app's educational value.

Some definitions are incorrect or too simplistic, reducing learning effectiveness.