Celvion Stack

Celvion Stack is an on-device photo stacking and image enhancement app built for iPhone and iPad. Combine multiple frames into cleaner, more detailed results while keeping your photos private. KEY FEATURES • Scene-based stacking for night photography, the Milky Way, light trails, soft water and clouds, moving-subject cleanup, and landscapes • Import and align RAW and standard image formats • On-device AI denoise and AI upscaling • Exposure, contrast, highlights, shadows, white balance, dehaze, curves, and color adjustments • Compare original and processed results before exporting • Export to JPEG, PNG, 16-bit TIFF, and 10-bit HEIF • Support for sRGB, Display P3, Adobe RGB, and embedded color profiles • Adaptive performance and memory controls for iPhone and iPad PRIVATE BY DESIGN Photo decoding, alignment, stacking, editing, and AI processing take place on your device. Celvion Stack requires no account, contains no advertising or tracking, and does not upload your photos to developer servers. COMPATIBILITY AI denoise and AI upscaling require iOS 18 or later. Compatible non-AI processing remains available on iOS 17. RAW compatibility depends on the camera formats supported by iOS and your device. Processing performance and maximum working size vary according to device capability and available memory. Celvion Stack — Reveal more from every frame.