Many app you can find on play store app if you search. But I mostly like xender app beacuse it worked on hotspot or wifi signls for trfer file from one destinations to receiver side.
You can also connect your pc to xender and take all your data on your pc and where you can easily copy all you data or photo video or many more.
Now xender available for iphone also anf provide a user friendly or great service.
In some phone you can find some problem like slow transfer speed, connection problem but as time spent xender team worked on it and resolve all issue.
A great app I use from last 3 year continue I ever cant find any mistake or problem in xender
