You can't save the screenshots
It always stays processing and doesn't save anything, so the app doesn't make sense
iPhone app doesn’t work
The iPhone app won’t export properly, it just says “Generating”, then goes back to the editing screen. The Mac app works fine. It does the same thing, but instead of going back to the editing screen, it pulls up a new window which lets you grab the pictures. So 4 stars for a working Mac app, broken iPhone app.
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Good app
The only problem i see is that the image that we insert in phone display cannot be cropped and the image are not made to scale but are fitted to size of screen resulting in completely distorted image. Good app saves lot of time generating similar result from other image software.
Response from developer
Thanks for your constructive criticism. I recommend using the same model frame as the device whose screenshot you are using as the frame to avoid distorted image.