Celvion Stack
RAW Stacking & On-Device AI
$9.90 · Designed for iPad. Not verified for macOS.
Align and stack supported RAW/DNG and standard photos on iPhone or iPad. Explore six scene workflows, with on-device processing and export controls.
Build a stronger image from a sequence of photos, right on your iPhone or iPad. Celvion Stack brings importing, frame review, alignment, stacking, editing, and export together in one on-device workflow.
SIX WAYS TO STACK
• Night scenes: combine exposures to reduce random noise while retaining natural detail.
• Milky Way: align the sky separately from the foreground for sharper stars and a stable landscape.
• Light trails: blend selected frames into continuous trails.
• Smooth water and clouds: create a softer motion effect from a sequence.
• Moving distractions: reduce the impact of people, vehicles, and other elements that appear in only some frames.
• Landscapes: combine aligned frames for a cleaner result.
CONTROL YOUR MILKY WAY STACK
Choose a reference frame, review frame quality, adjust sky and foreground masks, and inspect which frames are included. These controls help you adapt the result to your source images.
SUPPORTED RAW AND EVERYDAY PHOTOS
Import supported RAW/DNG files and standard photos. RAW compatibility depends on the camera file and the available decoder. Lens correction applies geometric distortion profiles when a supported profile or embedded calibration matches; automatic vignetting and chromatic-aberration correction are not included.
ON-DEVICE AI TOOLS
Use optional AI denoising and up to 4× super-resolution on supported iPhone and iPad devices with iOS or iPadOS 18 or later. Results depend on the source image. Core stacking workflows require iOS or iPadOS 17 or later.
FULL-RESOLUTION EXPORT
Export as JPEG, PNG, 16-bit TIFF, or 10-bit HEIF. Choose available color-space and DPI options, then save locally to Files or, where supported, Photos.
YOUR PHOTOS STAY ON YOUR DEVICE
Photo processing runs on your device. The app does not upload your source photos for processing.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update improves alignment, image quality and export reliability.
• More accurate background alignment with protection against ambiguous matches.
• Better precision when correcting small shifts.
• More stable star detection and sky/foreground masks.
• More consistent color during on-device AI upscaling.
• Fixed DPI interpretation for some source images and improved exported metadata.
The developer, 新庾 郭, 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
- 新庾 郭
- Size
- 339.9 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, Italian, Japanese, Korean, Russian, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Xinyu Guo
