Weld Symbols Trainer & Lookup

Weld Symbols Trainer & Lookup helps you study welding and examination symbols with a reference library, short lessons and practice questions. Browse original symbol illustrations and study explanations. See where the dimensions and supplementary marks belong. Work through lessons, answer multiple-choice questions, or practice with 60-second and three-minute drills. The builder lets you choose a weld type, side, size, length, pitch, groove angle, root opening, contour, finish and supplementary marks, and describes the combination you selected. Sketch Practice provides an approximate on-device check of six base shapes: fillet, square groove, V groove, bevel groove, U groove and edge. Draw on the arrow side or other side of the reference line. The check evaluates the basic shape and requested side placement; it does not evaluate dimensions, letters or modifiers. There are no random drawing prompts. Sketch instructions are in English, and sketches disappear when the current page session ends. Sketch checking uses no AI or network service. FREE ACCESS Use the complete symbol library, the first three lessons and ten quiz questions per day. FULL ACCESS One optional US $0.99 purchase unlocks every lesson, unlimited quizzes, the timed drills and the builder with supported Sketch Practice. No subscription or automatic renewal. The store checkout shows the applicable price before purchase. Existing purchases of the same full-access product remain restorable through the purchasing Google Play account. Core study and saved progress work offline. Google Play purchase, restore and localized-price checks require connectivity. No Appalachian Integrity account or sign-in is required. App screens are available in English, Spanish, Portuguese, French, German, Hindi and Tamil; symbol names and study content are in English. This is a study aid, not a certification course or a substitute for the published standard, drawing or project specification. Symbol coverage and accuracy have not been certified by a standards body. Appalachian Integrity LLC is not affiliated with or endorsed by a standards organization.

Limited free study access with a one-time full unlock. Existing purchase identifiers and restoration are preserved. Updated Privacy information and access to policy version history. Includes on-device Sketch Practice for six base weld-symbol types. Fixes Android system-bar spacing and theme contrast. Improves update reliability while preserving saved work and purchases.