Help with photo identification, subscriptions, and using the app.
Frequently asked questions
Why did my photo get a low confidence result?
Low confidence usually means the brand logo isn't visible, the photo is blurry, or the handle/cartridge has already been removed. Try a clearer photo, better lighting, or a close-up of any stamps on the trim plate or valve body. Our
Guides tab has tips for getting the best shot.
How does the free trial work?
New subscribers get 7 days of full access at no charge. After the trial ends, your subscription renews automatically at $2.99/month unless cancelled at least 24 hours before the trial ends. You can cancel anytime from the Subscription section under the Help tab in the app, or directly in your Apple ID subscription settings.
How do I cancel my subscription?
In the app, go to Help → Subscription → Manage Subscription. This opens Apple's subscription management screen where you can cancel anytime. You can also cancel directly from your iPhone's Settings → your name → Subscriptions.
I reinstalled the app and lost access. How do I get it back?
Go to Help → Subscription → Restore Purchases in the app. This restores access using the Apple ID you originally subscribed with, at no additional charge.
Which brands does CartridgePro support?
The Browse tab covers 22 major plumbing brands including Moen, Delta, Kohler, Pfister, American Standard, Grohe, Hansgrohe, and more. Photo identification works best on common U.S. residential shower valve brands.
Is my data private?
Yes — see our
Privacy Policy for full details on what's collected and how it's used.