Magisto supports the following orientations and aspect ratios:
1) Landscape - 16:9 (1920×1080, 1280×720, etc.)
2) Portrait - 3:4 (1536×2048, 1440×1920, etc.)
3) Portrait - 9:16 (1080x1920, 720x1280, etc.)
4) Square - 1:1 (1080x1080, 720x720, etc.)
Magisto automatically sets your video's orientation based on the majority of your photos and video clips (51% of your footage). A landscape video will be created if 51% of your selected raw footage is landscape.
With the Premium, Professional and Business upgrades, you can manually select the video orientation during the creation (website, mobile) and the editing (website, mobile) process.