The apk file that you are trying to install can have a default setting applied to it, which is not adjusting with your phone and you are unable to install the application. By using the third-party apk editor you can change those settings and make it a better match for your phone without any issues.
1. Download APK Editor Pro
⬇Download (Free)
⬇Download (Play Store)
2. Once it’s installed, Open the application
3. Now click “Select an APK File”
4. Then locate the apk file, which you want to install and select it
5. Select “Common edit” in the list of editing
6. You will find an option there “Install location”
7. Press that and select “Internal Only”
9. Now you can see a Green Tick.Then you press "Install"
Still you have any doubt you can check this video
Conclusion.
This is the main way to Fix the App not installed problem. I Hope you guys have got something from this article. If you have any problem, suggestion or request you can say just by commanding in the command section. Thanks for being with me and do not forget to subscribe. Also, visit my website every day because I post new articles every day.