Oil Due: Service Tracker

Oil Due is a local car maintenance notebook. Log oil, tires, brakes, and receipts. See what is due. Import a CSV from Vehicle Maintenance Tracker.

Dates are stored as civil dates (YYYY-MM-DD). They stay on this iPhone through force-quit, timezone changes, and app updates.

WHAT YOU GET FREE (one car, forever) • Unlimited service history • Receipt and car photos (on this device only) • Due by miles and/or months, in the app • Import a Vehicle Maintenance Tracker CSV (preview before it writes; photos are not in that CSV) • Export CSV and a zip backup through the Files app

UNLOCK OIL DUE — $2.99 ONCE • Extra vehicles • Date reminders from the OS (needs notification permission) • Archive a sold car Your log stays free either way. Restore Purchases is in Settings.

Mileage due lights up when you tap Update miles. Date reminders need permission; they do not need an account.

Not CARFAX. Not a dealer app. Intervals are typical, not your glovebox book. No ads, no subscription, no account, works offline.

Privacy: logs and receipts never leave this device. StoreKit is the only network call (the $2.99 unlock).