Mylio uses a custom raw decoder to make sure your images look the same across all of your devices. In some instances, your images may look slightly different in Mylio than other photo management tools; this is expected and is generally minor. However, Mylio does not offer denoising at this time, which generally accounts for changes that are noticeable. We are investigating offering denoising in future versions.
If you are using Lightroom in conjunction with Mylio you may not see edits made by Lightroom to XMP files. The unedited Original may be displayed in Mylio instead.