App Quality Dashboard

Learn Japanese - 50 languages

1.9 / 5

Chhi Score

This app is performing


Medium Risk


Medium Risk




High Risk






  • Install time: Icon 16.86 Sec
  • Launch time: Icon 1.43 Sec
  • Application size: Icon 15.25 MB
  • Last tested on : 05/03/2017
  • Build ID
    :   v10.4
  • Chhi Score
    :   1.9
  • Change Rate
    :   -17.39 %

What to fix?

Build 10.1 did better in Memory . Spikes in Memory contributed to score drop by 20.51%

Fixing Network risks could drastically improve Chhi Score. There are 9 Network risks.

App launch time went up by 87.84% initlizate network calls after few seconds of loading the resources. View details

9 Risk(s) are due to Data Sent/Received in Network exceeding the threshold.

The app has a high performance risk for the phone manufacturer(s) Asus, Micromax, Karbonn, Panasonic, Samsung, YU, Motorola, Lenovo. Check coverage report for more details.

Build 10.1 did better in CPU . Spikes in CPU contributed to score drop by 2.56%

Consider re-merging the code from build 10.1, Memory score was 3.9

11 tests need immediate attention. View performance graph.

Fix & Optimize launch time using Flatbuffers for storage and rendering performance.

Upload APKs with and without 3rd Party SDKs to monitor and optimize the impact of app performance

Testability: Providing login / sign-up details could very well improve depth of bot clicks

Below 10 MB approach would increase app installs in crowded markets such as India, China and Russia!

Caching: Use LruCache for data caching to optimize memory usage

Do not initialize objects that aren't necessary during launch times. Moving to singleton pattern helps

Network utilization on Motorola Moto E (2nd gen) exceeded 1024 KB, you might want to consider bringing it down

App makes 9654.05 KB of network requests. Moving this to a background thread will improve load speed. View details

There is high probability of identifying risks running the apps with conditions

Coverage: Android version coverage for reports will range between 5.1.1 to 7.1.2

Total Network data consumed was 9654.05KB in Motorola Moto E (2nd gen) , This indicates the app will take 10-15 seconds on 2G network and 8-9 seconds on 3G network to load! View details

Printing logs on callbacks would make debugging easy for tests run in our platform

Avoid wake-locks in background, using Batch and schedulers APIs such as GCM, Job schedulers could reduce wake-locks

Follow simple UI hierarchy by reducing nested layouts to Relative layouts.

Optimize the app to render elements at 60 FPS for buttery smooth experience.

Network utilization on Lenovo A6000 exceeded 1024 KB, you might want to consider bringing it down

Fix Oncreate() if the launch time is exceeding more than 3.2 secs. Try deflating views and layouts to optimize.

71.44 MB of App Dalvik utilized by activity com.goethe.ja.FiftyLanguagesActivity. View details

Screen Coverage

competition benchmark

This app is ranked #1900 in Education