App and guides
Install Idoneos as an app to keep guides at hand from the home screen.
Opening a guide online saves a local copy of the page and the resources it loads. Each visit tries to fetch the published version and updates that copy. If the network fails, the saved version is shown.
JavaScript enables app installation and the list of saved pages.
How offline reading works
Saved pages appear here. To prepare a guide, open it online and scroll through it to load its images. Videos, external services and forms need a connection. A guide that has never been opened needs an initial online visit.
Copies are stored on this device, in the browser or app. Space is limited and the browser may free storage. App updates preserve saved guides.