Contents
ProviderImages and textLocal storage and deletionOffline speechSDK diagnosticsPurchasesSharingSupportReferencesYomu Loupe Android / Updated October 5, 2026
Provider
StackWorksDev. Contact: contact@stack-works.dev. No account registration.
Images and text
Camera access is used only for magnification, freezing and OCR. No microphone, location, contacts or photo-library permission is requested. The bundled Japanese ML Kit model processes images and recognized text on your device. Neither images nor recognized text are sent to developer or Google servers.
Local storage and deletion
Only an explicit save stores an original-color JPEG, thumbnail, recognized text and timestamp in private app storage. Settings are local. Delete saved items in the app; Android app-data removal or uninstallation deletes local records and settings. Cloud sync, app backup and device transfer are disabled. Camera and speech stop when the app enters the background.
Offline speech
Only voices marked by the installed Android speech provider as not requiring a network are selected. Missing voices do not trigger a silent cloud fallback. Adding a voice opens device/provider settings and the provider may use a network. Consult that provider’s policy.
SDK diagnostics
Separately from local image/text processing, Google ML Kit collects device and app information, latency, image format/resolution, input/output sizes, initialization/detection events, errors and per-installation identifiers for diagnostics and usage analytics. Google Play Billing handles purchases/restoration and sends diagnostics and device or other identifiers, including client/session identifiers, to Google. Transport is protected by HTTPS. No advertising ID, developer advertising SDK, analytics server or account backend is used.
Purchases
Google Play manages payment details; the developer does not receive card numbers. The app checks purchase/pending/acknowledgment/restoration status and stores only confirmed entitlement state locally. Trying Plus in the independent sample does not purchase or change entitlements. Google’s policies apply to purchase and diagnostic data.
Sharing
Only when you explicitly share, Android sends selected text or a metadata-free JPEG to your chosen target. Images are exported to a unique temporary file with read permission limited to that file. The target’s policy then applies.
Support
If you email support, your address and message are used to respond. Personal data and saved images are not required. Google handles deletion/retention of its purchase and diagnostic data under its policies.
References
https://developers.google.com/ml-kit/terms / https://developers.google.com/ml-kit/android-data-disclosure / https://policies.google.com/privacy