Focuster has iOS app, and an Android version is coming soon.
iPhone or iPad
As of August, 2020 we have released Focuster on the Apple App Store. Click the link below from your iOS device to download and sign-in with your existing Focuster account, or sign up with a new account to start a 14 day trial.
There's no specific app for Focuster on Android, but you can use Focuster Mobile in your mobile browser and receive the full functionality of Focuster app on your mobile device.
Read more about: Using Focuster Mobile Web