Thirds Camera — A camera coach that helps the photo you take match what you saw. Thirds is a camera coach for iPhone. It's built around the gap between what you saw and what you took. While you frame, an on-device scan checks composition (rule of thirds, golden ratio, symmetry, leading lines, headroom), auto-zooms between 0.5x and 5x to tighten the shot, and lights up the shutter when you're lined up. Photos get an automatic film look, and the editor has grain, light leak, halation and frames. It's free, there's no account, and there's no cloud AI. Everything runs on the phone. What to test: Line up 3 shots until the shutter lights up, then edit one. Tell me where you first got stuck. Developer: Ben Friedman (Ben Squared Sites), [email protected]