I have been using the Umi app for learning Japanese for quite some time, and I must admit that it was once a fantastic tool. The app offered an engaging and effective approach to language learning, providing a variety of useful features and content. However, my recent experience with the app has been marred by an overwhelming influx of intrusive advertisements. When I initially downloaded Umi, it was a breath of fresh air in the realm of language learning apps. The interface was clean and intuitive, and the lessons were well-structured and comprehensive. The app had an impressive selection of vocabulary and grammar exercises, along with audio pronunciations and interactive quizzes that made learning Japanese enjoyable. Unfortunately, with its latest updates, Umi has succumbed to the temptation of excessive advertising. Every time I launch the app or attempt to access a lesson, I am bombarded with intrusive video and banner ads. These ads disrupt the flow of my learning process, making it difficult to concentrate and diminishing the overall user experience. While I understand that developers need to monetize their apps, the frequency and intrusiveness of the ads have reached an unacceptable level. It feels as though the primary focus has shifted from providing a valuable language learning experience to maximizing ad revenue. This shift has severely impacted the app's usability and has ultimately made me reconsider whether Umi is worth keeping on my device. I sincerely hope that the developers behind Umi take user feedback into account and address this issue promptly. If the app can strike a better balance between monetization and user experience, I would gladly restore my faith in it. Until then, I cannot recommend Umi to fellow Japanese language learners who value an uninterrupted learning experience.