I have been ranting on about this for years in various forums. If the smartphone is now replacing the camcorder, then we should have the option to shoot in the video standard which is compatible with our regions, i.e 3/4 of the world have 50Hz electricity and PAL frame rates, yet phones are all sold at 30fps NTSC stadard, while dedicated cameras are sold in 50Hz countries in PAL mode. Someone once said that it's because phones are all produced as a one size fits all, but thats not true because Samsung are selling their S series phones with Snapdragon chips for American markets, and Xynos for Europe, so while their at it, why can't the sell PAL video recording frame rates with the Xinos version phones?
The whole world of video is being ruined by pig minded developers, we now see vertical video everywhere along with jerky frame rates on PAL country tv broadcasts, such as news etc. Also We can't integrate our phone cameras along with our camcorders and other PAL cameras. In the USA they can, so this is not fair either.
I know that IOS14 have now added a PAL 25fps mode to their Iphones, but it needs to get activated as the default is 30fps, so most people in PAL countries wont use it, but I personally hate iphones as they look so ugly and samey, so i'm wishing for an Android phone to have 25fps video.
I too have tried 3rd party apps on my current Galaxy S8 but the quality is not as good as the stock app as the stock app is finely tuned to the camera unlike 3rd party apps. Filmic pro offers 25fps, yet 50Hz lights still flicker and the app keeps reverting back to 30fps.
Totally useless for 3/4 of the world unless you want to ruin video by making it incompatible. Yet it seems we are crying in silence as manufacturers are not listening.