Pitch Atlas

Pitch Atlas is a native field manual for the craft of pitching. It explains how pitches are gripped, how they move, who made them famous, and how solid each claim is. The app is built around a simple rule: sourced, not corrected. A measured figure, a pitcher quote, a coach observation, and an unverified claim do not wear the same label. Every pitch read shows its evidence tier so the gap stays visible. Inside the app: - A searchable pitch index, from four-seams and sliders to lost pitches and banned doctored balls. - Native seam specimens with sourced motion cues and seam-informed schematics. - A grip library built from first-party grip photography and first-person notes. - Craftsmen and lost-pitches wings for the pitchers, pitch names, and techniques that shaped the language. - A sources browser so the reader can see where each claim came from. - An optional, free community layer: post field notes and discussion, report content, and block contributors with no account setup. An anonymous record is created on your first contribution, and you can claim it with Sign in with Apple or email to keep it across devices and attach still images. The full reference library is bundled inside the app, so it works on first launch without an account and without a network connection. Community participation needs no sign-in: posting, reporting, and blocking work anonymously. Sign-in exists only to claim your record across devices and to attach images.