Calibration Due Tracker

Still tracking calibration and inspection due dates in spreadsheets? Calibration Due Tracker keeps measuring instruments, calibration deadlines, inspection dates, certificates, photos, and history together on your device. Try every feature free with up to 3 items. A one-time in-app purchase unlocks unlimited items. No subscription. KEY FEATURES - Dashboard — see overdue, due-in-30-days, due-in-60-days, and normal items at a glance - Multiple deadlines per item — track calibration, inspection, and replacement dates separately - Photos — attach a photo to each item with full-screen viewing and pinch-to-zoom - Smart reminders — receive notifications 90, 60, 30, and 7 days before a deadline, plus on the due date - Calibration history — record each calibration or inspection and attach certificate PDFs - CSV import & export — import an existing equipment list with preview, or export your data anytime - PDF ledger — generate a printable register of your equipment and deadlines - Face ID lock — keep your equipment data private - Offline operation — your data stays on your device - No account required - No cloud service required - English and Japanese supported WHO IT'S FOR Designed for quality assurance staff, maintenance technicians, calibration coordinators, small workshops, laboratories, and anyone responsible for keeping measuring instruments within their calibration or inspection periods. Use it to manage torque wrenches, calipers, micrometers, gauges, jigs, fixtures, and other measuring or inspection equipment. PRIVACY Your equipment data stays on your device. No account is required, and the app does not use a cloud server to store your equipment records. FREE TO TRY Register up to 3 items and use every feature at no cost. If you need to manage more than 3 items, a single one-time purchase removes the item limit permanently. No monthly fee. No annual subscription. If you previously purchased the paid version of the app, you keep full access with no additional purchase required.