milkglass · privacy policy

Name

Last Updated

june 4, 2026

Description

milkglass is a film simulation darkroom for macOS, published by miraisoft. this policy describes what data the app reads, writes, and transmits.

Data Collection

milkglass does not collect, transmit, or share any personal data. there are no analytics SDKs, no advertising SDKs, no crash reporting upload, no account system, no telemetry of any kind.

Network Use

milkglass itself makes no outbound network calls.

at launch and periodically, macOS performs a license check with the App Store to confirm your Apple ID is licensed to run the app. this call is made by macOS itself, not by milkglass. no identifying data about you or your usage passes to miraisoft.

File Access

milkglass runs inside Apple's App Sandbox. it reads only files you explicitly open through the standard open dialog or by dragging a photo onto the app, and writes only to locations you pick through the standard save dialog. it has no other filesystem access.

the original RAW or image file is never modified. edits are written to a JSON sidecar next to the original with the same base name (e.g. DSC_0001.arw → DSC_0001.json).

On-Device Storage

the following lives on your mac and never leaves it:

edit sidecars: a json file written next to the photo you open, recording your edit. the original file is never modified.
app preferences: HUD window positions, recent documents, view options (stored in macOS UserDefaults).
document recall: file references stored locally so the app can reopen recent documents.

removing the app and its data removes all of the above. milkglass does not request the camera, microphone, or location services.

Tracking

none. milkglass does not track you across other apps or websites. Apple's NSPrivacyTracking manifest key is set to false.

Required-Reason API Declarations

under Apple's privacy manifest rules, milkglass declares these API categories with the following reason codes:

UserDefaults, reason CA92.1 (app-internal preferences and window state)
File timestamp, reason C617.1 (files you open through the document dialog)

these declarations describe internal use of system APIs. nothing is transmitted off-device.

Third-Party Services

none. no cloud sync, no external APIs, no SDKs that phone home.

Purchases

your purchase of milkglass is processed by Apple through the Mac App Store. miraisoft does not see, process, or store payment information.

Children's Privacy

milkglass is not directed at children under 13 and collects no information from any user.

Changes

updates to this policy will be posted at this URL with a revised date.

Contact

questions? reach me at hello@miraisoft.io.