Simple android app

You need to develop  a copy of the application https://apps.apple.com/app/id1644691132 with modifications
the subscription screen will be like in the app - https://apps.apple.com/us/app/morph-mods-skins-for-minecraft/id6443937815
application size should not exceed 150 MB
application writing language - Kotlin
application orientation - portrait
minimum Android API version: 22
for subscriptions use Google IAB Library
Everything must be implemented according to the design, the interface must be adapted to different devices (phones, tablets)
all content will need to be downloaded from dropbox (link provided upon request)
The application should not have hardcode in the content, all data should be dynamic (all categories for content too) and read from JSON that will be downloaded from Dropbox and loaded, it should be staged depending on the elements that are visible on the screen, that is, if in the list mods, the first 6-8 elements are visible - we load only them.
All content must be cached and load content from the cache at each launch if it was previously downloaded
every time you start the application, you need to check jason for new content and, if it is, then load it into the application
It will be necessary to integrate the Adjust API https://www.adjust.com/ and Pushwoosh https://www.pushwoosh.com/ (test keys are issued upon request)
AdMob- there should be a banner at the bottom on all screens and when you go to the next screens, interstitial advertising (video) opens in these tabs, the first 10 elements in each section should be open with the ability to download (test keys must be used for admob)
To complete the project, you need to uniqueize the code and pass the test with our other projects on the service https://apprefactoring.com/
All text must be in the Strings.xml file
All keys must be placed in a separate Strings file
The application should only request permissions that are necessary for the functionality of the application.