How to change the image size for embedded pictures from the Android app?

Is there any way to change the size of the images uploaded using the Android app? The app itself has a setting to resize the picture, however it does affect the max. size uploaded to the server, while I am looking only for the way to make the app behave the same as WordPress’ web interface.

I have three different sizes set in Settings -> Media and three scaled images show up in uploads alongside full-sized picture both for pictures uploaded with the app and via browser.

When uploading through the web interface the picture is inserted into a post in *large* size by default with size-large class:

<a href="https://www.mywebsite.com/wp-content/uploads/2015/11/20151129_103420.jpg"><img src="https://www.mywebsite.com/wp-content/uploads/2015/11/20151129_103420-1024x576.jpg" alt="20151129_103420" width="660" height="371" class="alignnone size-large wp-image-315" /></a>

When uploading from the Android app it shows always in full size with size-full class:

<a href="https://www.mywebsite.com/wp-content/uploads/2015/11/wpid-20151129_103420.jpg"><img title="20151129_103420.jpg" class="alignnone size-full" alt="image" src="https://www.mywebsite.com/wp-content/uploads/2015/11/wpid-20151129_103420.jpg" /></a>

While uploading the image, Android app shows the following in the code:

<img android-url="content://media/external/images/media/22194" />

What entity (ie. PHP code or Android app) does resolve the android-url tag into full HTML?

I guess it is impossible to change the behaviour of the app, but is there anything I can change on the server side?