Sunny 16 - Film Exposure Calculator
Go to any locked feature and tap "Restore Purchase". Make sure you're signed in with the same Apple ID you used to purchase.
Yes! One purchase unlocks Full Access on all your devices.
The light meter uses your iPhone's camera to estimate EV. It's great for getting in the ballpark, but for critical work, consider a dedicated meter.
On a sunny day, set your aperture to f/16 and your shutter speed to the reciprocal of your ISO. For example: ISO 400, f/16, 1/500s.
Indoor, night, and moonlight conditions are part of Full Access. Tap any locked condition to see upgrade options.