Car Codex
Parts, repairs and build costs for every car you own
Coming December 2026
Car Codex keeps everything about your cars in one place: parts, repairs, maintenance, paperwork, tickets, photos and every dollar you've put into each build.
- iPhone
- iPad
- Apple Watch
- Price
- Free
- Requires
- iOS 17.0 or later
Apple Watch app: watchOS 26.2 or later - Version
- 1.0 (coming december 2026)
Coming in version 1.0
- Share a car with friends, family or your mechanic, and choose what a shared car shows
- Co-own a car with edits synced both ways
- Shares can expire on a date you pick
- Shared with Me lists cars others have shared with you
- See what you've spent on each car, item by item
What it does
Your garage at a glance
- Each car's health, open issues and total invested
- Add a car by hand or decode its VIN
- Search across every car, part, issue and document
Parts, issues and repairs
- Installed and wanted parts with prices and suppliers
- Log symptoms, then close them out when they're fixed
- Service history and the shops you use
See what your build costs
- An investment timeline with a running total
- Parts, labor and notes behind every entry
Paperwork and reminders
- Registration, insurance, smog and warranty with expiry dates
- Reminders before renewals come due
- Ticket and court-date reminders
Share or co-own a car
- Share through iCloud with family, a buyer or your mechanic
- Presets keep VIN, plate, insurance and receipts hidden
- Shares can expire on a date you pick
AI mechanic (optional)
- Uses your own Anthropic API key
- Snap a receipt or registration and it files it for you to approve
The story
Car Codex started as a garage notebook for a project car and grew into a full garage manager with iCloud sharing and an optional AI mechanic.
Questions? Email CarCodex@bangbangstudios.net, or read the privacy policy.

- Price
- Free
- Requires
- iOS 17.0 or later
Apple Watch app: watchOS 26.2 or later - Version
- 1.0 (coming december 2026)