Apple TV+ not showing on my Roku device

It's not available on all Roku's - only certain models. You can find the list of available models on the Roku website. If your model is listed as one that is available then you will need to install the Apple TV program by using the search function. If your model is not listed then there is no Apple TV app available.

Make sure your firmware is up to date. You would then need to download the TV app from the Roku app store. If it is not showing in the store then best to reach out to Roku for support.

Here the list of supported Roku devices:

https://support.roku.com/article/360036652634