After updating ASUS System and App in Jun 23, always failed to launch Gallery Apps with this error message, "Unfortunately, Gallery has stopped."
I checked settings, RAM sizes, memory, system info, and tried clear cache those app: "Gallery", "Media Storage". But this error still occuring.
I think that perhaps your apps have issues how to get real (file) paths, symbolic links.
I founded One Japanese Developer reported related problems and presented how to fix it: http://workpiles.com/2014/07/android-gallary-intent/
(but this link written in Japanese, so you have to read it after translate!)
please refer this link and fix this problem.
MODEL: ASUS Zenfone 5 A500CG (KitKat4.4.2)
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P.S. : Splendid is a great app, wonderful challenging! I love it.
I want to more: color parameters (Hue, Saturation, ...), effects (e.g. Gradation, Interpolation, Parallax Effect)