Good idea in theory, and with the right phone it could be pretty useful. But if your phone does auto white balance like mine does, this app doesn't work. It tells me every light source is ~4500K, regardless of the actual CCT. I tried everything from 2700K to 6500K, and it couldn't tell the difference. I tried on a Nexus 4 and Nexus 7; neither one was anywhere near accurate.
11 people found this review helpful
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On Note10+ not always does the trick. In dim light it was off, the image was not on real color tones or temperature. Indoor, natural light it was fine, accurate and close to accurate. Outside, sunny daylight, it was off, not accurate. It could be calibration, maybe the paper brightness needs to be 100, not all the papers has the same brightness level. Is not perfect, at least not all gets the right data.Hopefully the dev will take time to update it,no update since 2012 :( Android Eclair 2.1old
10 people found this review helpful
Not perfect, but close enough. I bought this to measure white balance on a scene with mixed lighting. I have some studio lights and know their exact color temperatures. On my Galaxy S10+, the measurements are within a reasonable margin of error for all of them. It does seems to read the daylight temps a bit more accurately, however. If you want better, expect to drop major cash on a real light meter.
4 people found this review helpful