Go to https://www.onto.app/en and scroll down to the bottom for download options.
iOS Users: Download ONTO via Apple Store.
Android Users: Download ONTO via Google Play store or APK
Access to camera is needed for scanning function. ONTO app need relavent permissions for the use of some functions. You can choose whether to allow ONTO with the permissions when you download and install ONTO. You can also check the settings of your phone and change the permissions at any time.
Tap on "Add to Chrome"
Help Center: https://ontology-1.gitbook.io/onto-web/