Privacy Policy

The short version. Chemy has no ads and no analytics or tracking SDKs. You sign in with Apple (and can use Hide My Email), location is optional, and camera analysis runs entirely on your device. The only data stored on our servers is what you actively create — your account, the community posts you publish, and the photos you attach to them.

1. Who we are

Chemy (the “App”) is operated by IMX Enterprises (“we,” “us,” or “our”). This Privacy Policy applies to the Chemy iOS app and this website, chemyapp.com. If you have questions, contact us at support@chemyapp.com.

2. What the App does

Chemy shows real-time public aircraft positions (ADS-B), forecasts atmospheric conditions that favor persistent contrails, lets you score the contrail coverage in your own photos on-device, and lets you log and share sky observations with a moderated community. Chemy is not a medical device, not proof of any covert program, and not a substitute for official weather or aviation data.

3. Information we collect

We practice data minimization. Chemy uses an account, and beyond that, the data below depends on the features you choose to use — location, camera, and posting are each optional.

Account information

Chemy requires an account, which you create with Sign in with Apple. We receive a unique user identifier and, only if you allow it, an email address — which may be an Apple private-relay address (you can choose Hide My Email). You may also set a username, display name, and avatar. We never receive your Apple password.

Location

If you grant location access, your device’s coordinates are sent — as transient, one-time requests — to our data providers to fetch nearby aircraft and weather. We do not store your precise location on our servers. If you choose to attach a location to a community post, that coordinate is coarsened to an approximately one-kilometer grid before it is saved, and attaching location is opt-in for each post. If you deny location access, the App still works using a default map location.

Camera and photos

The contrail-scoring feature uses your camera. Image analysis runs entirely on your device — those camera frames are not uploaded to us. Separately, if you choose to attach a photo to a community sighting, that photo is uploaded to our storage so it can appear in the community feed.

Community content you create

When you post a sighting, we store the content you submit: your observation text, an optional flight callsign, any photo you attach, the optional coarse location described above, and any reports or block relationships you create. Posts are restricted to flight identifiers (callsign, tail number, aircraft type) and must not name individuals.

Purchases and subscriptions

Premium features are sold through Apple’s in-app purchase system. We receive your subscription/entitlement status from Apple (for example, whether a subscription is active). We never receive or store your payment-card details — Apple handles all billing.

Device sensors (Field & Frequency Lab)

The entertainment-only Field & Frequency Lab reads your phone’s magnetometer to visualize raw magnetic-field readings. These readings are used live on your device and are never stored or transmitted.

Your private journal

The Sky Journal saves your snapshots only on your device. It is never uploaded to our servers.

Marketplace clicks

When you tap an item in the Cloudbuster Hub marketplace, the App opens an external maker’s website. We may record that an item was tapped (the item identifier only) to understand which listings are popular. This is not cross-app or device tracking.

Notifications

If you opt in, Chemy sends overhead alerts and Live Activities when a chosen aircraft type is in range. These are local notifications generated on your device — there are no push servers, and no push token is sent to us. The aircraft data used to trigger them is not stored on our servers.

4. How we use information

To provide core features — aircraft tracking, forecasts, and contrail scoring.
To operate the community feed, including moderation, reporting, and blocking.
To authenticate you and associate the content you create with your account.
To process and restore your in-app purchases.
To keep the service safe, secure, and reliable, and to comply with law.

5. What we do not do

No advertising and no ad networks.
No third-party analytics, crash, or telemetry SDKs.
No App Tracking Transparency prompt and no advertising identifier (IDFA) — we do not track you across apps or websites.
No selling or renting of your personal information.
No health data is collected, and the App makes no medical claims.

6. Service providers and data sources

Chemy relies on a small number of providers to function. We share only what each provider needs to deliver its service:

Supabase — our backend (authentication, database, photo storage, and moderation functions). Stores your account, community posts, attached photos, coarse post location, reports, and blocks.
airplanes.live — public ADS-B aircraft data. Receives a transient location query to return nearby aircraft.
Open-Meteo — weather and upper-air data. Receives a transient location query to return local conditions.
NOAA Space Weather Prediction Center — public geomagnetic data. Receives no location or personal data.
Apple — Sign in with Apple (authentication) and the App Store / StoreKit (purchases). Governed by Apple’s privacy policy.

7. Community visibility

Sightings you publish are visible to other users on a public map and feed, along with any photo you attach and the coarse (~1 km) location you opt to include. Please do not post anything you consider private. Your private Sky Journal is never shared.

8. Data retention

We keep your account and the content you create until you delete it or request deletion. Transient location queries to data providers are not retained by us. On-device data (the Sky Journal, live sensor readings, and camera frames) is controlled entirely by you and is removed when you delete the App.

9. Your rights and choices

Depending on where you live (including under the GDPR and the CCPA/CPRA), you may have the right to access, correct, export, or delete your personal information, and to object to or restrict certain processing. You can exercise these rights at any time:

Adjust location, camera, motion, and notification permissions in iOS Settings.
Edit or remove community posts you have created.
Delete your account and associated data — see our Account & Data Deletion page.
Contact us at support@chemyapp.com for any privacy request. We do not discriminate against you for exercising your rights.

10. Children’s privacy

Chemy is a general-audience app and is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us information, contact us at support@chemyapp.com and we will delete it.

11. Security

We protect stored data with database row-level security and access controls, and community photos are served only through expiring, signed links from a private storage bucket. No method of transmission or storage is perfectly secure, but we work to protect your information.

12. International users

We operate in the United States, and our providers may process data in the United States and other countries. By using Chemy, you understand that your information may be transferred to and processed in countries with different data-protection laws than your own.

13. Changes to this policy

We may update this Privacy Policy from time to time. We will revise the “Effective” date above and, for material changes, provide notice in the App or on this site.

14. Contact us

Questions or requests about your privacy? Email support@chemyapp.com, or write to IMX Enterprises.