Set "Diced" make larger apk size than "Default"

[pokeking]

Hi, i'm making a game and i use tk2d toolkit to support. It's very useful but i got some problems about apk size.
https://www.youtube.com/watch?v=CBZFRhKr7kg

According to this video, dicing sprite get less space in collection than default sprite, but in my game, i have 4 images 750x1334 to make background, and the atlas size of collection seem kind of big (max size became 4096).
I tried to diced the image in max size 2048 to 64-64, even to 8-8, but it doesn't work. And when i build on apk, the size is 33,8Mb.
But why when i turn the Render Mesh to Default instead of Diced, the apk size decrease to 33,5Mb?

And are there anyway to make apk size smaller with tk2d toolkit?
Sorry for my bad English, please feed back to me.

[unikronsoftware]

Hi there,

Dicing an image isn't going to save you a lot unless you have a lot of empty space in your image. Really depends on your image - eg. in that video that should save you a little bit, but if the apk size difference is so small, it could be any number of things. Take a look at the unity build logs to see whats different.