1. You can download iOS version of Astrill application from App Store
2. Then tap on Cloud/Download button to proceed with downloading and installation of the App.
3. After the downloading & installation is complete, click on Open to load the application.
4. Then you will have to input the Astrill account's login credentials.
5. After a successful login, you will be able to see a Welcome Note from Astrill.
6. Then a notification message will prompt up for installation of new VPN profile:
7. You will have to confirm the installation of the VPN Profile, you will have to provide your 4-digit iPhone passcode:
8. Then click on 'Done' to switch back to the application.
9. Tap on the drop-down list for changing Server/Country:
10. Then you will be able to select any of the preferred server, as mentioned in the screenshots below:
11. To connect with the selected server, press on the red button(labelled as OFF); so that the button can be switched ON:
12. After processing the connection will be established successfully.