Calotype Privacy Policy

Effective date: April 16, 2026

Calotype does not collect, transmit, or share any personal data. The app has no servers, no analytics, and no third-party SDKs. Everything you capture and every setting you adjust stays on your device.

This page explains what that means in practice.

About Calotype

Calotype is a minimal iPhone camera app that captures RAW DNG files and stores them in your Photos library. It is made by Kyle Aaserud / Solmark.

Permissions Calotype Asks For

Calotype only requests two system permissions, and only when they are needed to do something you asked for.

Camera

Required to capture photos. When you grant camera access, Calotype reads live frames from your iPhone's camera sensor so the viewfinder can display a preview and so you can take a picture. Camera frames are processed on your device only. They are never uploaded, logged, or sent anywhere by Calotype.

Photo Library (Read and Write)

Required to save the photos you capture, to show your most recent capture on the camera screen as a thumbnail, and to present the in-app gallery. Calotype reads and writes only the local Photos library on your device. It does not upload, sync, or share the contents of your library.

What Calotype Does Not Do

No accounts. There is no sign-up, no sign-in, and no user profile.
No network calls. Calotype does not contact any server. The app has no networking code. You can verify this yourself in Settings → Privacy & Security → App Privacy Report - Calotype will show no network activity.
No analytics or telemetry. Calotype does not track how you use the app, what features you open, or how often you take pictures.
No crash reporting. Calotype does not transmit crash reports or diagnostics.
No third-party SDKs. Calotype is built only on Apple's own frameworks. There are no embedded SDKs from advertising networks, analytics providers, or any other third party.
No advertising or tracking. Calotype does not show ads, does not use the Advertising Identifier (IDFA), and does not request App Tracking Transparency permission.
No location collection by Calotype. The app does not read your location and does not embed GPS coordinates into the photos it captures. iOS itself may embed GPS coordinates in a photo's EXIF metadata if you have the system-wide Camera location permission enabled; that is a setting in iOS, not a behavior of Calotype. Calotype does not add or remove this metadata.
No microphone access. Calotype does not record audio.

Data Stored on Your Device Only

A few small pieces of state live in Calotype's sandboxed app container on your device:

Your photos are saved to the iOS Photos library. They are yours. Open, move, back up, or delete them using the Photos app like any other photo.
Your app preferences (things like UI toggles, accent color, and whether you have dismissed the first-launch introduction) are stored in iOS UserDefaults, which lives only on your device.

If you delete Calotype, these preferences are removed with it. Your captured photos remain in the Photos library until you remove them there.

Children's Privacy

Calotype does not knowingly collect personal information from anyone, including children. The app is not directed at children under 13 and contains no accounts or content uploads that would make it unsafe for younger users.

Changes to This Policy

If this policy ever changes, the updated version will be posted at this same URL and the Effective date at the top will be updated. Because Calotype ships without analytics or accounts, there is no mechanism to notify users individually - please check this page if you want to confirm the current terms.

Contact

Questions about this policy can be sent to [email protected].