PixADair vs SharpStacker

PixADair is a multi-tool astrophotography editor powered by AI from Topaz Labs. Denoise, sharpen, upscale, and crop — then compare every change at full resolution. Shooting the night sky means pushing your camera to its limits — high ISO, long exposures, and the noise that comes with them. PixADair gives you a complete toolkit to bring out the detail hidden underneath. FOUR AI-POWERED TOOLS Chain edits together in any order — each step is saved so you can go back and branch off at any point. Denoise — three models (Normal, Strong, Extreme) tuned for different exposure levels Sharpen — five modes including refocus, lens blur correction, and motion blur recovery Upscale — enlarge 2x, 4x, or 6x with three fidelity models Crop — frame your composition with region-matched before & after comparison BEFORE & AFTER COMPARISON Inspect every pixel. The interactive slider lets you drag between any edit step in full screen. Pinch to zoom up to 10x and pan around to compare fine detail across your entire edit history. FLEXIBLE OUTPUT Export as PNG, JPEG, or TIFF — whatever your editing workflow needs. Save directly to your photo library with one tap. YOUR KEY, YOUR CONTROL PixADair uses a bring-your-own-key model with the Topaz Labs API. There's no subscription, no account to create with us, and no middleman between you and the AI. You pay Topaz directly for only the processing you use — nothing more. Your images are sent straight to Topaz and never touch our servers. HOW IT WORKS 1. Add your Topaz Labs API key in settings (once) 2. Import a photo from your library or share it from any app 3. Chain tools — denoise, sharpen, upscale, crop — in any order 4. Compare edits with the interactive slider, then save Processing happens in the cloud, so your device stays fast and responsive.

SharpStacker turns a series of night-sky exposures into a single clean, detailed image. By aligning and stacking your shots, it reduces noise and reveals faint detail — stars, the Milky Way and deep-sky objects — that a single frame can't capture. It's built to make astrophotography stacking accessible to everyone: a deliberately simple interface gives you an immediate, intuitive workflow — without the cost or complexity of traditional desktop software. Full RAW support preserves maximum quality from capture to export. The blending mask is generated automatically by a machine-learning model — or drawn by hand — and can be fine-tuned manually for full control. • Full RAW import • Automatic star alignment and stacking • Noise reduction through stacking • ML-generated mask, editable by hand • Simple, immediate workflow • iPhone, iPad and Mac • On-device processing — your photos never leave your device Import your exposures, start the stack, and export a cleaner, more detailed night sky.