Last updated: October 29, 2026
Lumina is developed by ARCTILLO LABS. It is a film inventory, camera library, and light meter app. Camera analysis and your collection data remain on your device.
ARCTILLO LABS does not collect, receive, transmit, or share your personal data or app content. Lumina has no accounts, analytics, advertising, tracking or cloud sync. Optional purchases and purchase restoration communicate with Apple's App Store as described below.
Lumina uses Apple's StoreKit for an optional one-time Pro purchase, purchase verification and restoration. Apple processes payment and purchase information under its own privacy policies. ARCTILLO LABS does not operate a payment server, receive payment-card information, or upload your inventory, imported photos, camera frames or exposure records. StoreKit may contact Apple to load products or verify purchases; verified access can be read from StoreKit's on-device records. Earlier access is checked using Apple's verified app transaction.
Lumina requires camera access to function as a light meter. Camera frames are processed in real-time on your device using Metal GPU acceleration and are never recorded, stored, or transmitted.
On supported devices, Lumina uses the LiDAR scanner to measure subject distance. Depth data is processed in real-time on your device and is never recorded, stored, or transmitted.
Your settings, film inventory, roll history, camera and lens records, exposure logs, service history, notes, gear photos, and film-label photos are stored locally on your device. Lumina does not sync this content to a developer or third-party server. Removing the app may remove this local content, subject to the backup and restore settings you control in iOS.
When you add a gear or film-label photo, Lumina uses Apple's system photo picker. Lumina receives only the image you explicitly select, stores a copy in the local collection, and never uploads it.
You can create a local backup, export collection data as CSV, or permanently delete film inventory, roll history, gear records, photos, labels, service records, and exposure logs from Lumina's Settings screen. Exported files leave Lumina only when you choose a destination through an iOS system file picker. Deleting Lumina from your device also removes its locally stored app data, subject to normal iOS backup and restore behavior.
Lumina does not integrate with third-party APIs, analytics, advertising, or tracking SDKs. Support and Privacy links open public pages in your browser only when you tap them. Lumina does not append collection, meter, or device data to those links.
Questions about this policy? Reach out via GitHub Issues.
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