Lumen - Camera & Watermark
Night, OCR & Local Edits
Free · Designed for iPad. Not verified for macOS.
Lumen — a privacy-first smart camera. Watermarks, document OCR, Night & Portrait, Pro controls and light edits — all on device. Your media never uploads to our servers.
Lumen is a privacy-first smart camera. Shoot, watermark, scan, and lightly edit — all on your device. We don’t upload your media to our servers.
Capture
• Photos and video with timer, grid, and level
• Live Photos to keep motion around the shutter
• Burst and preview-before-save for quick picks
Watermarks you can preview
• Stamp time, place, or custom text
• Live preview in the viewfinder
• Great for work check-ins and everyday memories
Scan & documents
• QR codes and barcodes — copy or open links
• Document scan with text extraction (OCR)
• Scan history stays on this phone
Smart modes & Pro
• Night multi-frame fusion for low light
• Portrait background blur
• Pro: exposure, ISO, white balance, AE/AF lock
Light edit & share
• Filters plus brightness, contrast, saturation
• Postcard, stamp, and grid templates
• Edit and share in a few taps
Local-first privacy
Lumen processes photos and videos on your device. Location is used only when you enable Save location or a location watermark. We do not upload your media to our servers.
For daily moments, field notes, or quick document text — Lumen keeps shooting simple and private.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Optimized app performance and fixed known issues.
The developer, 勇滨 黄, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 勇滨 黄
- Size
- 117.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 15.5 or later.
- iPhone
Requires iOS 15.5 or later. - iPad
Requires iPadOS 15.5 or later. - iPod touch
Requires iOS 15.5 or later. - Mac
Requires macOS 12.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 alechuang