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Photone is built to deliver accurate light measurements, no matter which device you use. To achieve this, we continuously test the app on the latest smartphones, including Apple’s iPhone 17 series and Samsung’s latest flagship devices Galaxy S25 Ultra, Fold7, and Flip7.
Photone comes with a default calibration for every Apple device and for most common Android models (full list of compatible devices). For each new device released, we create a calibration for that exact model in a controlled laboratory environment. This means there’s no need to manually calibrate your device — Photone simply works right out of the box.
We use real hardware in our testing process, not just technical specifications, so that every reading you take reflects what’s actually happening in the field.
To ensure spot-on measurements, we compare Photone’s results against professional instruments like the LI-190R Quantum PAR-Meter (a $2000 industry-standard instrument) in real-life scenarios using grow lights from leading brands. This makes Photone a true professional tool that can rival dedicated handheld light meters — but at a fraction of the cost and always with the convenience of using the device you already carry.
Whether you’re just starting your first grow or running a professional operation, Photone makes light measurement simple, affordable, and reliable. Try the latest version today and experience the confidence of lab-grade accuracy — right from your pocket.
