Kinemetron
Hear how your shutter keeps time.
Screen slow mechanical shutter speeds, compare actual and nominal timing, and keep a dedicated history for every camera—all privately on your iPhone.
Honest measurement
Useful where the phone is capable.
Microphone timing is designed for 1 second through 1/15 second. Faster settings can use the experimental iPhone camera estimator.
Slow shutter timing
Detect opening and closing transients, then report duration, deviation, and stop error.
Your camera collection
Create up to three camera profiles for free, with dedicated statistics, deviation trends, and measurement history for each body.
Experimental iPhone camera
Estimate a light pulse from the film gate while staying clear about focal-plane curtain and uniformity limits.
Kinemetron Pro
Grow beyond the workbench.
A one-time Pro purchase unlocks unlimited camera profiles and CSV export. The core measurement tools and three-camera collection remain available without a subscription.