A Pro subscription adds:
unlimited backup of all your projects,
the ability to create as many projects as you need,
music editor with access to royalty-free tracks,
music editor with access to your music library,
longer snippets—up to 10 seconds,
the option to add unlimited snippets to each day in your Journal projects,
the ability to remove the date stamps,
the possibility of removing 1SE branding from your mashed videos,
brightness and volume control of each of your snippets,
the option to add filters to your mashed videos (iOS only),
access to collaborate on Freestyle projects with friends,
no ads,
HD and 4K export,
priority support.
To subscribe or compare plans, see 1se.co/pro.