What users hate. Clustered.

1- and 2-star reviews grouped into themes with verbatim examples. Each cluster is a wedge a competitor could exploit.

10 reviews·6 themes

Poor user experience due to recent design changes
Users are frustrated with the new interface and layout, preferring the previous version which was more intuitive and functional.
3
reviews
- “DAMN — The former design is better.”
- “They’ve changed the hearts update… — When I lost 5 hearts, I had to wait a couple hours to continue my coding project. After I wait for that long, the progress was gone. I had to start over again since the beginning of the course not mid-way. Waste of time and double the effor”
- “Mimo — 使い方がわかりません”
Excessive difficulty and stress-inducing gameplay
Players find the game too hard, leading to frustration and emotional stress, especially when progress is lost after failure.
3
reviews
- “ダメ！！！！！！！！！！！！！！！！！！！！！！！！！ — too HARD 難し　過ぎ”
- “ストレスが溜まる — ゲーム内のハートにストレスが溜まるおすすめできません”
- “No longevity — The app has some good intentions but no longevity in terms of practicing and cultivating skills.”
Lack of Japanese language support
Non-English speakers, particularly Japanese users, struggle due to absence of localized content, making navigation and comprehension difficult.
2
reviews
- “日本語ないんか — 英語わからんから勘でいったら間違えてハートが減る。ストレスは溜まる。問題文がわからなければ意味がない。”
- “Nice app worth try — It was nice and fun to learn them, until the trial part only then need to pay some money to learn more. Well im not surprised because it a great app. Maybe i will install it again when i already have money..i wish it has like more discounts”
Broken password reset functionality
Users report failing to receive password reset emails after updating the app, preventing access to their accounts.
1
reviews
- “Issues with changing password latest update not good — For the money I paid for subscription not that good. Especially updated version. There are several very frustrating things about this application. I tried to change password, but never received the email to my registered address.”
Loss of progress after failure or heart penalty
Users are penalized severely for mistakes by losing all progress and being forced to restart from the beginning instead of resuming mid-course.
1
reviews
- “They’ve changed the hearts update… — When I lost 5 hearts, I had to wait a couple hours to continue my coding project. After I wait for that long, the progress was gone. I had to start over again since the beginning of the course not mid-way. Waste of time and double the effor”
Insufficient skill development and lack of practice continuity
The app fails to provide long-term learning value, with limited opportunities for review, repetition, or advanced practice beyond basics.
2
reviews
- “No longevity — The app has some good intentions but no longevity in terms of practicing and cultivating skills. In example for python, the basic approach is quite well made and promising at first but then there is no way to review them practice continuous”
- “My opinion — One problem with mimo is the lack of typing skill that you need to complete the course, in other words is like learn drawing or painting using photography as you main skill to capture your ideas(clicking instead of typing) another issue is a”

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