Updated 28 October 2026. Studio notes apply to version 1.6.0 or later; check your installed version. Version 1.5.5 does not include Studio.
Scrim processes camera and motion measurements on your device. Studio also processes the photo you select. Scrim has no account, advertising or analytics service. It stores local settings, review-request timing, saved scenes and Studio projects. Measurement results can be shared with your paired Apple Watch. App Store purchases and reviews use Apple’s services.
Scrim reads the live camera preview and the device’s gravity vector. Preview frames are processed into a brightness histogram on the device; Scrim does not upload frames. A frame is stored only when you choose “Save scene”: one reduced reference image (JPEG) is kept in Scrim’s own storage on this device, never in your photo library. Motion readings come from CoreMotion, not location services. Live camera measurement does not read photos from your library. Studio imports only the photo you select, as described below. Scrim does not access your microphone, location, contacts or calendar.
Studio imports the image you select with the system Photos or Files picker. The system may download a selected iCloud file. Editing takes place on this device. Studio keeps a private copy of the selected original, edit recipes and created files in the app’s storage. Originals are not overwritten. Scrim does not upload these photos. Device backups may include these private app files.
Stored originals retain their metadata, which may include location, EXIF or XMP information. New SDR JPEG and PNG exports are encoded from rendered pixels without copying source location or private metadata. This does not remove metadata from the stored original. You choose which created file to share through the system share sheet. When recovery is available for a retained unfinished import, you may also save or share an exact copy of its original after a metadata warning. That copy may contain location, EXIF or other private metadata. Recovery does not sanitize the original. Successful exports and retained project files remain in private app storage; uninstalling the app removes app storage, while separately shared copies and device backups follow their own retention.
Scrim keeps measurement preferences in the device’s standard settings store: the accelerometer-noise assumption, selected lens half field of view and comparison display headroom. When you save a scene, Scrim also stores its name, optional project and notes, the date, and the measured values (horizon and tilt angles, preview brightness, clipped fraction, ISO, shutter time, aperture, white-balance temperature and zoom). Scenes stay on this device (and in your device backup); you can delete any scene in the Scenes tab, and deleting the app removes them. If you share a scene sheet (Scrim Pro), its text and reference image go only to the destination you pick in the iOS share sheet.
To space out requests for an App Store review, Scrim also stores a local usage count, up to 30 distinct usage dates, and the date and app version of its last review request. This records when Scrim asked the system to request a review, not whether a prompt appeared or what rating you gave. These records are not uploaded by Scrim.
When the paired Watch app is connected, Scrim can send measurement results and framing guidance through Apple’s WatchConnectivity service. This includes the decision and reason, horizon angle and uncertainty, clipped fraction, suggested correction and reading-validity information. Timing information helps the Watch discard old readings. Camera images and brightness histograms are not included in these messages.
From version 1.5, Scrim is free to download. Frame and Light stay free. Scenes, Verticals and Delivery are part of Scrim Pro. Available purchase options and terms are shown by the App Store before confirmation. In version 1.6.0 or later, the Studio sample is free to try; importing, editing and exporting personal photos requires Pro or a previous permanent tools purchase. Existing projects and saved outputs remain accessible when editing access is unavailable. People who bought Scrim before version 1.5 keep Verticals and Delivery; Scrim checks this with Apple’s on-device App Store receipt (the app version you first downloaded). Purchases, restoration and verification use Apple’s StoreKit. Scrim does not receive your payment-card details or your Apple Account identity.
Earlier versions: 1.3 offered a one-time in-app unlock, and 1.4 included all tools in the paid download. Those rights are kept.
Scrim may also ask for an App Store review through Apple’s system prompt. Apple controls whether that prompt appears and handles any review you submit. These Apple services are separate from Scrim’s on-device camera processing and follow Apple’s data-handling policies.
Camera access is requested by iOS. You can change it in Settings at any time. Without access, Scrim cannot provide camera-based measurements. The app has no sign-in or advertising identifiers and includes no analytics or third-party crash-reporting SDK.
This website is hosted on GitHub Pages. Visiting it or following an App Store link uses those services, separately from the app’s measurements. If you email support, your address and the information you include are part of that email, handled through the email services involved.
This page will be updated when Scrim’s data use changes. Version-specific notes above distinguish the released app from an update still in preparation.
Questions: hello@norea.studio.