While not common, I do see some people asking why the Android build of the game has a considerably low file size compared to the PC builds. In the section "Install instructions" in this site, I've clarified this, but I'll make this post and explain in detail why the builds are different.

Harem Residence comes in different flavors. There's a build for PC, there's a build for MAC, there are Low Quality builds and there's an Android build.

The amount of content is exactly the same regardless of the build. The difference between the regular builds to the low quality ones is, actually, just the image quality.

At the time of me making this post, the game has over 12,500 renders/images packed in it. For the sake of this explanation, let's say each image is worth one megabyte (actually, many of them weight more). That'd make the game over 12gb in size, the images only.

To fight that, I use different methods to reduce the size of the images without compromising their quality... in a noticeable level, at least.

The Low Quality builds take the image compression to an extreme. It makes the game look much worse, but the size of the game is under one gigabyte. Making it easier to download to those with poor internet connections. And, it doesn't look that bad if your monitor's resolution is under 1080p.

Android builds also use this image quality, for two reasons. Phones tend to have small screens, so the bad quality is less noticeable. The second reason is that APK files are limited to 2gb, I believe, so better to keep it safe.

I hope this gives some clarification on build differences.