Grainmeter

Privacy policy

Last updated 2 November 2026

Nothing is collected

Grainmeter does not collect, store or share any personal data. There is no account, no analytics, no advertising and no tracking of any kind.

The camera

The camera is used only to measure light while the meter is on screen. No photos or video are recorded, saved or sent anywhere.

Location, only if you turn it on

If you turn on Save location in the logbook, each frame keeps the approximate place it was taken. The location is read only while the meter is open and is stored only on your iPhone, with the logbook. It stays off unless you switch it on.

Notifications

When you start the long-exposure timer, Grainmeter can schedule a notification on your iPhone to say when to close the shutter. It is created and delivered on the device. Nothing is sent to a server.

Your settings and logbook

Film choice, settings and logbook entries are stored only on your iPhone. They leave it only when you export the logbook yourself.

Purchases

The one-time unlock is handled by Apple through the App Store. Grainmeter never sees your payment details.

Contact

Questions about privacy: contact@hellobilal.com.