Retro Chip Vault turns your iPhone and iPad into a workshop tool for vintage electronics. Snap a photo of a chip and get its part number, manufacturer, pinout and compatible machines instantly. Track your inventory, log every repair project per machine, and use the symptom checker to know which components to check first. 198 chips and 76 classic machines documented (Amiga, C64, Amstrad, Atari, Apple II, arcade...). Free to start, Pro is a one-time €9.99 unlock (no subscription).