The video is stored on the SD card anyway. So who needs the cache? I'll try that screen recorder. I've bought a used listed compatible phone on eBay before I worked out the workaround, so I'll probably start using that when it arrives. There is a guy on Facebook that is using an 8 inch tablet which looks awesome. My eyesight is crap now, so I'd have a chance seeing without glasses. I thought of using my tablet. Strangely, the app isn't compatible with my 10 inch Acer tablet despite it being Android 7.