The best alternatives to Caralel are Dualgram, Split Pic, and SlickPix. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Caralel?
Hurree— The smarter, simpler way to analyze your data
Dualgram takes photo/video using MULTIPLE CAMERAS simultaneously! The app make use of the latest hardware, and therefore supports only iPhone launched in 2018 or later (such as iPhone XR, XS, and iPhone 11).