How does identification work?

The app resizes your photo on the device and sends it to our Cloudflare Worker. Only the Worker calls OpenAI, and only when its key is set. The model is gpt-4.1-mini. The request sets store: false, and API data is not used to train OpenAI’s models by default. Photo bytes are not stored on our server. The Worker keeps a count for the install id and a result cache keyed by a hash of the photo and the notes. The same photos and the same notes do not call OpenAI again and do not use a second free identification. Practice samples and the rock of the day stay inside the app and do not upload a photo.

What stays on the device?

The collection, saved photos, an optional GPS label, and the on-device analytics log stay on the device. Location is used only after “Use current location” while you save a specimen, and that label is not sent with the photo. Notes you type on the review screen are sent with the photos. They are not your GPS location. There is no account. Export is a JSON file you share from the app.

How do the free identifications and the plans work?

Three identifications are free for the life of the install. The collection, the field guide, practice samples, and the rock of the day do not use those three. Then the annual plan is $24.99 per year with a 7-day trial, or the monthly plan is $4.99 per month with no trial. When the trial ends, Apple or Google charges $24.99, then the same amount each year until you cancel. The monthly plan charges $4.99 today, then every month until you cancel. There is no weekly plan. The paywall states the price before you confirm with “I understand, start the trial” or “I understand, subscribe monthly.” “Continue with 3 free identifications” does not charge you. The product ids are cleavemark_annual and cleavemark_monthly.

How do I delete my data?

Settings, then Delete data on this device, asks you to confirm with “Yes, delete data on this device” or “Keep my data.” Confirming removes the collection, the older collection record, the streak, the notification preference, appearance, attribution, the on-device event log, and the local entitlement cache, and returns you to onboarding. It does not cancel an Apple or Google subscription. It does not delete the install id, and it does not delete the quota count or the result cache on the Worker, so the three free identifications do not reset. Uninstalling the app removes on-device data and does not cancel a subscription. There is no account to delete.

How do I cancel, get a refund, or restore a purchase?

Cancel an Apple subscription at apps.apple.com/account/subscriptions. Cancel a Google Play subscription at play.google.com/store/account/subscriptions. Apple refunds start at reportaproblem.apple.com. Google Play refunds are described at support.google.com/googleplay/answer/2479637. Restore purchases reloads a real subscription from the store with the same Apple or Google account. If it still does not appear, email support@montgomeryappworks.com.

What do the messages in the app mean?

• Practice specimen: “Practice specimen. This is a saved example, not a photo you took.”
• No identification key in that build: “This build has no identification key, so the photo was matched to a practice example. It is not an identification of your specimen.”
• A real photo under 0.45 confidence, or when the model asks for a better photo: “This match is uncertain. Add a close-up or a streak photo, or note a scratch or streak test, then identify again.” Practice samples do not show this.
• Optional notes: “Anything you type is sent with the photos as a note. It is not your GPS location.”
• Location button: “Optional. The place is saved on this device and is not sent with the photo.”
• Delete confirm: deleting on-device data does not cancel a subscription and does not reset the three free identifications.
• A build whose store keys are not set yet says the purchase is simulated and nothing was charged.
• Renewal: the annual and monthly prices, the 7-day trial, and “until you cancel.” Deleting the app does not cancel a subscription.

How do I stay safe with a specimen?

Do not eat, lick, or ingest a specimen. Some minerals are toxic or radioactive. Handle unknown pieces with care, wash your hands, and avoid breathing dust. A photo identification is not guaranteed. It is not a valuation, an appraisal, or a legal decision about what you may collect, keep, or sell.

How do I reach support?

Email support@montgomeryappworks.com. Montgomery Appworks LLC, Oklahoma. The bundle ID is com.montgomeryappworks.cleavemark. Details are in the privacy policy and the terms.