Use APKPure App
Get KidVid old version APK for Android
On YouTube kids can encounter a lot of age-inappropriate stuff.
KidVid is a web + mobile app solution which gives you control on what you want to show to your kids. It's very easy and quick. Just create an account and start adding the YouTube URLs. On your mobile download the the app from play store and login with same credentials you created on web. You can install the app locker on your mobile to lock the YouTube app so your kid will not go to YouTube app instead he/she will open the KidVid app and watch the videos