This app is awesome, works very well if you can tolerate a growing lag time between the audio and video. As of very recently, it was a free app. Now if you want more than 5 minutes of mirroring, you have to pay for their "VIP" version, so it is essentially a paid app now.

Find another app. The video played fine on my Macbook Pro until I invoked Oka, then the mirror appeared on the TV with no picture. No picture on the Mac either, just sound, so I know the video file was playing. After my 10 minute free trial expired (“bait-and-switch" for sure,) the picture came back on my Mac, but no more mirror. So the upshot is that the app doesn’t work during the free trial and they now want me to pay for the upgrade. If I can’t get it woking during the life the free trial, it makes no sense to buy the premium version. Frustrating. I recommend finding another app.

I puchased the VIP membership. It's worth the money. Video streaming on chromecast works very well. The only bug is when I try to adjust the volume, the streaming would crashed. I couldnt seem to find where to adjust the volume in the app. Hope it could be fixed in the next update.

I tired a number of apps in the app store and they semi worked but this one gave me absolutly no problem at all. Now of the free ones this one is the best hands down. i haven't used the paid ones but if you try this app you'd be more than satisfied with the outcome.