Some iOS apps will allow you to send photos directly to Mylio for iOS. This allows you to save images, videos, and PDFs into Mylio without the file needing to be available in your Camera Roll. Once imported, the file will be sent to a folder named Inbox on your device that lives outside of the Mylio Pictures folder. The file will then sync with the other devices on your Mylio account.
If this option is available for a specific app you are using, Mylio will appear as below. If Mylio is not seen within this list, you may be able to add it by selecting “More…” from the right side of the share sheet and toggling Mylio on.