Seen: Photo Cleaner

## One-line Introduction
Seen is a photo cleanup app focused on reviewing, marking, batch deleting, and remembering your progress.
Its goal is simple: clean up your photos without having to start from the beginning every time.

## The Problem We Solve
From time to time, we feel the urge to clean up our photo library.

We spend some time carefully comparing photos — deciding which ones to keep and which ones to delete.
Then we get interrupted by something else, or we simply lose patience.

Ten days later, or maybe two weeks later,
the urge to organize photos comes back again.

And that’s when the most frustrating moment appears:

I don’t want to start from the beginning again.
I just want to continue from where I left off last time.

## Core Features
- Fast photo browsing: View all photos in a grid and quickly enter preview mode in chronological order
- Full-screen swipe cleanup: Swipe left or right to review photos continuously, reducing the friction of repeatedly entering and leaving albums
- One-tap mark for deletion: Mark unwanted photos instantly while reviewing, making the cleanup process smoother
- Batch delete marked photos: Confirm once and remove all marked photos at the same time, avoiding repetitive actions
- Visualized cleanup progress: Track both the progress of the current group and the overall cleanup progress with a dual-layer progress bar

## Who It's For
- People whose phones frequently warn about low storage space
- People who accumulate lots of screenshots or temporarily saved images
- People who love taking photos and quickly build up a large photo library
- People who want to organize their photos more efficiently without constantly tapping through the system album

## Product Highlights
- Focused purely on photo cleanup, without unnecessary feature overload
- Photos are processed entirely on-device, with no reliance on backend servers
- Your photos are never uploaded, keeping your privacy safe
- A clear and straightforward cleanup workflow that is easy to start using immediately