What is the best app to use for swing videos in iOS? Just need to draw some lines etc on videos I took with my phone. Either free or a low one time purchase fee.

Thanks for any suggestions.

I have enjoyed Hudl Technique Golf.

Hudl Technique is what you're looking for.

Film in as high of frame rate as your phone will allow.

I've always used V1 Golf.

When I used to get lessons, that's the software the pro had so you could link all of your swings from the lessons to your phone and compare them side by side with your old swings or swings of different tour pros.

I will say the tech is a little outdated now on the iPhone app, but still works for what you need it to

I use V1. Have used Hudl before as well though