Not only can you rotate a video without round-tripping to iMovie, but also de-skew perspective and perform other non-destructible operations on your footage that used to require third-party apps, like trimming, cropping, rotating and flipping.
Avoiding compatibility issues is crucial to enjoying your 4K, high frame rate and slow-motion footage across a myriad of devices. VideoProc can help with that. Rather than pile up a bunch of complex features you’ll never use, VideoProc is a focused app that’s very easy to use and includes a plethora of powerful features like hardware acceleration to ensure that your converted videos play back without a hiccup no matter the platform.
iOS 13 lets you create app automations in the Shortcuts app that can do some neat things, like launch the Halide app when you hit that stock Camera icon on your Lock screen or open your favorite note-taking app upon tapping the Notes toggle in Control Center.