Stremio is a cross-platform media center for streaming local and online content anytime and anywhere. It works similar to that of Kodi, Plex, and several other media servers. Stremio is available on popular devices like Android, iOS, Windows, and Mac. For Roku users, there is no official Roku channel available on the channel store. But you can watch Stremio content on Roku by using the screen mirroring technique.
Before Mirroring Stremio on Roku, make sure both Roku and smartphone are connected to the same Wi-Fi network. Also, set the screen mirroring mode on Roku to Always Allow/Prompt.
Watch Stremio on Roku using Android
 Download and install Stremio from the Play Store.
 Access the Notification panel from the top.
 Choose the Cast option and select your Roku device.
 Launch the Stremio app and stream its contents.
 The contents will mirror on the Roku screen.
Watch Stremio on Roku using iPhone
 On the other hand, install Mirror for Roku from the channel store.
 Launch Mirror for Roku on both the devices.
 On your iOS device, select and connect your Roku device.
 Allow access to your device notification and click on Start mirroring.
 Again click on Start Broadcast.
 Now, open Stremio and watch it on your Roku device.
Using Windows PC
Apart from Smartphones, you can also mirror PC screen to watch Stremio contents.
 Download and install Stremio app from the official site on your PC. Launch the app and configure the login credentials for watching media contents.
 Press Windows + P on your keyboard.
 In the project tab, choose Connect to a Wireless display.
 Select your Roku device.
 Allow permission to mirror your PC screen.
 Launch the Stremio app and play its media contents.
These are some of the ways to watch Stremio on Roku. With-in the Stremio app, you can add various plugins or addons to watch different media contents. If you have any doubts related to this guide, make use of the comments section below.