So if I have the 20lb paper, my numbers are around 5-10% lower than what they actually read? Is that correct? And 22lb paper gives closer to actual numbers?
Not all phones require the piece of paper. I think apples do. I have a galaxy s21 ultra and it doesnāt require the piece of paper. Actually when I put the piece of paper of mine it tells me to āremove the diffuserā
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@ReelOfishal My moto edge+ says it, and it drops my ppfd on my S21+ to like 40. Guess it is just an iPhone thing. Without it, Iām getting about 800 on both phones, but I just turned on the other light too.
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Yeah the light sensors are differnt on differnt phones.
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@Mark0427 @alexankh @OGIncognito thanks for the info guys. Iām on Android and donāt think I even need the paper. 
At least I know if I switch to iphone tho!
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yes all phones are diff. my model i phone is different from hells. what im trying to say is youre prob in the right ballpark with the 20lb paper, using an iphone.
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roger that @Borderryan22 . my wife has an android, google pixel something, maybe ill do a test.
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Your right, android= no diffuser neededš¤
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Yeah I donāt do I phone either. Itās like all backwards to me from Android lol. I hate the no back button idea on them and all.
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Had one for a bit. Free with new plan. Bought the edge+ after a month.
i dont think the app work for my phone at all, no matter what i get single digit readings
Did you ever figure this out? I use 20 lb paper and want to make sure Iām calculating my #ās correctly
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I donāt use a light meter anymore. I found Photone to be to unreliable on my devices so until I can get a real lux meter, Iām having to wing it.
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