Mod Ledger – Car Build Log
Maintenance & fuel. No login.
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Maintenance, fuel and MPG log plus every mod, part and dollar for your project car, in one private ledger. One-tap build sheet for forums and for-sale posts.
A car maintenance and fuel log that stays yours: every service, fill-up, MPG figure and mod for your car, on your phone and in your own iCloud, exported whenever you like. No login to keep, no renewal to remember: your records are yours for as long as you want them.
One purchase. No subscription, no account, no feed.
Mod Ledger is the private ledger for your car: maintenance and fuel first, then every mod, part and dollar of a project build, plus a one-tap build sheet you can drop in a forum signature or a for-sale listing.
MAINTENANCE & SERVICE LOG
Oil, filters, brakes, tires, fluids, inspection or anything custom, with cost, mileage, date, photo and notes. Set an interval in miles or months and get a local reminder when it comes round. A missed one costs nothing and says nothing.
FUEL LOG
Odometer, gallons, price. Three fields and you're done. MPG per tank and overall, partial fills handled properly, fuel spend counted.
YOUR MODS
Part, category, brand, cost, shipping, install cost, mileage, date, up to six photos and the receipt. Planned, ordered, installed or removed. Planned parts make a wishlist with a running total, so you always know what the next round costs.
THE BUILD SHEET
One tap turns the ledger into a clean image or PDF: your car, the headline, the mod list grouped by category, totals if you want them, hidden if you don't. Sized for forums and for-sale posts.
TOTALS
Invested in mods, planned, service and fuel, per car and across the garage, with a month-by-month chart.
YOUR DATA
Everything lives on your iPhone and, if you turn it on, in your own iCloud. No account, no sign-in, no server of ours, no ads. Export any car or the whole garage to CSV from the share sheet. Import fill-ups from a CSV export of your old fuel log.
FREE, THEN PAY ONCE
Free: one car, 25 mods, unlimited service and fuel entries, the build sheet with a small app mark, CSV export.
Mod Ledger Pro, paid once: unlimited cars, mods and photos, the build sheet without the mark, PDF, CSV import. No subscription exists.
Mod Ledger is a ledger. It records what you did and what it cost; it does not give advice on legality, emissions, torque or safety.
Questions or a category you're missing? hello@crusadi.org
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Settings takes problems as well as ideas, and can bring Pro back on a new phone.
The developer, Crusadi LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Crusadi LLC
- Size
- 2.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Mod Ledger Pro $14.99
- Copyright
- © 2026 Crusadi LLC