How the app works, and how it was built.
A plain-language look inside Max Photo Frames: what happens between choosing a photo and saving it, the on-device AI that separates your subject, how layers and depth are put together, and why the file you save matches what you saw.
Why this app
A free photo frame app with no account, no uploads and no photo tracking.
02How it works
The journey from choosing a photo to saving a framed, captioned image.
03On-device AI
Cutting out a subject on your iPhone, without uploading the photo anywhere.
04Layers and depth
How words go behind a person, and how a subject breaks out of the frame.
05Export quality
Why the saved file matches the canvas you reviewed, at delivery resolution.
06Built and tested
How the app is structured, and how each promise is traced to a test.
Written for the curious, not only for engineers.
Each page starts with what you would notice as a person using the app, then explains the mechanism underneath. Industry terms appear only where they are the actual name for something, and the deepest technical material sits at the end of each page rather than the front.