7 best car maintenance tracking apps in 2026 (tested & ranked)

Why you need a car maintenance tracking app

A good maintenance tracking app replaces crumpled receipts with smart reminders, a service history you own, fuel tracking, and records that help at trade-in or resale. Whether you DIY oil changes or use a shop, the right app catches due work early and keeps costs visible.

Not every app covers the same job. Some only show work reported by participating shops. Some excel at fuel economy but skim maintenance. Others need OBD hardware. Below we compare options that are actually worth installing—and say which job each one is best at.

Transparency note: This guide is published by Carmainty. We are biased toward our product for all-in-one logging. Competitor “best for” labels are category picks based on publicly marketed capabilities (store listings, product sites, and feature docs)—not a claim that we ran a blind lab study. We update this page as products change.

How we ranked these apps

We ranked for everyday car owners first—not fleets, dealers, or OBD enthusiasts. Carmainty is #1 only in the all-in-one ownership-logbook category. Other apps win their niche when that niche is the main job.

Scoring criteria (weighted toward daily ownership tracking):

• Service tracking depth — shop and DIY history, attachments/receipts, cost fields—not only dealer-reported events
• Reminders — date-based and mileage-based alerts you can actually set and trust
• Fuel & expenses — fill-ups, parts, insurance, registration, and similar ownership costs
• Setup speed — add a vehicle and log a job without a long account/hardware gauntlet
• Multi-vehicle & sync — households, phone/web sync, and backup options when you change devices
• Affordability — real free tier for core logging vs. paywall just to record an oil change
• Specialized strengths — when an app clearly leads (OBD diagnostics, GPS tax mileage, fleets, MPG communities), it wins that category even if it is weaker as a full logbook

Quick verdict

Use this as a category map. “Best for” means strongest fit for that job based on the criteria above—not a universal ranking of every feature.

• Best all-in-one ownership logbook (our pick) — Carmainty — shop + DIY services, fuel, expenses, reminders, sync, iCloud/Google Drive backups on iOS and Android
• Best if shops report into CARFAX — CARFAX Car Care — auto-filled history from participating shops (weaker for DIY)
• Best for tax mileage & expense reports — Simply Auto — GPS mileage logging and export-focused reporting
• Best for check-engine diagnostics — FIXD — Bluetooth OBD2 sensor with plain-English codes
• Best for fleets & many vehicles — Drivvo — multi-vehicle / fleet-oriented plans
• Best for deep fuel economy — Fuelly — MPG trends and community comparisons (iOS-focused)
• Best hardware + app for power users — OBDeleven — diagnostics, coding, and service-light tools

Side-by-side comparison

How to choose the right car maintenance tracking app

Want one app for services, DIY work, fuel, expenses, and reminders → Carmainty.

Always use shops that report to CARFAX → CARFAX Car Care can auto-fill that history.

Need GPS mileage for taxes or reimbursement → Simply Auto.

Check-engine light and plain-English codes → FIXD with an OBD2 sensor.

Many vehicles or a small fleet → Drivvo.

Obsessed with MPG trends → Fuelly (and still use a logbook for services).

Enthusiast diagnostics and coding → OBDeleven.

Don’t ignore the price tag

Feature lists look similar until billing hits. Prefer a real free tier for core logging and clear Premium pricing for sync or extra vehicles—not a subscription tax just to record an oil change.

Carmainty is designed around that bar: free forever for one vehicle with unlimited records. Need sync and more cars? Premium stays cheap—even less than a cup of coffee.