The compatibility depends on what you want to observe and your smartphone’s OS (Operating System) If you are using an Apple iPhone: Sun & Moon: iPhone under iOS 16 and above, or iPhone 8 and above. Deep Sky: iPhone 13 + iOS 15 and above Please note ...
On this page, you will find a variety of tutorials for Hestia and its Gravity app. These tutorials cover a range of topics to help you properly set up your Hestia and perform both day and night observations. https://vaonis.com/hestia-tutorials