Astro Stacker: Star Images
Ahmed Al-Mahmud
About this app
- Age 10
- Updated Oct 7, 2025
- OS IOS
Editor reviews
Astro Stacker: Star Images is a smart astrophotography editor that aligns and stacks multiple night-sky photos to reduce noise and reveal faint details. Designed for Milky Way, star fields, and deep-sky captures, it delivers clean, high-resolution results with minimal effort.
Key features include automatic star alignment and stacking with intelligent outlier rejection, night-sky tuned noise reduction and detail enhancement, and full RAW workflow with optional dark, flat, and bias calibration. Non-destructive tools like gradient removal, color balance, curves, and sharpening help you finish your image, with high-quality export to TIFF, PNG, or JPEG. Perfect for astrophotography, long exposure, and low-light photography searches such as star stacking app, noise reduction, RAW editor, and photo and video tools.
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How to use:
1. Download and open the app, then import your night-sky photos in RAW or JPEG; add multiple exposures from the same scene for best results.
2. Create a new project and choose a mode such as Deep Sky, Nightscape, or Star Trails, then select a reference frame.
3. Run auto star alignment and stacking; preview the result and adjust alignment quality if needed.
4. Refine the image with gradient removal, color balance, curves, and detail enhancement until stars and nebulae look clean and natural.
5. Optional advanced step: add dark, flat, and bias frames, choose stacking method like average or sigma clipping, then re-stack for maximum quality.
6. Export your final image to TIFF, PNG, or JPEG and share or continue editing in your favorite photo editor.