Autostart App Manager is a free tool that will help you to enable all the applications which you want auto start when mobile starts (reboot) and also this app lets you disable all the auto start apps you don't need.

Select which applications you want to start after phone startup. Auto-start works on all phones/tablets and it doesn't require root permission or any extra permission.

You can choose one or multiple apps to auto launch at reboot.
There are many apps that automatically start when you turn on your device many of these you don't use or need they just consume your precious resources.

The free Auto Start app manager is a perfect match for the Samsung galaxy s4 galaxy s5 galaxy s6 galaxy s6 edge galaxy s7 galaxy s7 edge all Huawei smart phones Sony smart phones LG smart phones Android google Nexus google pixel phones Oppo smart phones QMobile phones and tablets and all other android smart phones and other devices as well. Autostart App Manager will work on every android device.

Simply
activate the autostart app manger
add applications which you want to start in next reboot in the startup list
save the list and done
you can view those list and delete apps from them if you want
also you can Enable/disable the notification.