RoboTou Stacker

Stack starry skies, landscapes, star trails, and light trails directly on iPhone and iPad with local processing, auto masking, and up to 100-frame Star Trail Pro.

RoboTou Stacker helps you combine multiple photos into cleaner stacked results directly on your iPhone and iPad.

Import images from Photos, choose a stacking workflow, and generate results for starry skies, landscapes, star trails, or car-light trails. The app includes automatic masking, alignment, local preview generation, and export back to Photos.

The current version is designed for on-device processing. It does not require account registration or cloud sync for core workflows.

Privacy Policy: https://www.robotou.cn/robotou-stacker-ios-privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/