When watching lessons on an iOS device, the Thinkific video player may not display options such as closed captioning, and more. This is because when playing a video on an iOS device, the native iOS video player will take over.
To avoid this, you can request a desktop version of the site within your mobile browser. To do so, follow the steps in this article from Thinkific.
If you are still experiencing performance issues, please refer to our troubleshooting articles in the FAQ or contact our support team via live chat for assistance.