I've been using instagram on iOS. I heard that instagram on android devices drops image quality badly but on iOS the things are not disastrous. Recently I've uploaded a photo through my iphone on instagram. I've found that the original file size was like 1.3mb. But the post processed file through instagram app is around 850kb. I've checked exif data of both the unprocessed and the processed files. It showed that both of the files contain same amount of pixels. But why the processed image file has a smaller size?! Does that mean it dropped the image quality?!
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