CARFAX Car Care is valuable as a service history repository and recall checker, but unstable behavior after every update and unreliable record saving undermine trust in a tool where accuracy is critical.
評価点：Service history tracking for multiple vehicles, open recall notifications, ability to store receipts and avoid unnecessary service (one user example: $800 saved on transmission fluid)
不満点：After every major update the app freezes on the splash screen for weeks, new records often fail to save, odometer shows incorrect values, the same record gets duplicated eight times
向いている人：Owners of multiple vehicles who care about service history and are willing to tolerate post-update instability
A maintenance log for multiple vehicles with receipt photo attachments. Strong on support and long-term record storage, weak on rigid pricing and login issues.
評価点：Stores years of service history with attached receipt photos, convenient for owners of multiple vehicles
不満点：Occasional login problems, one-vehicle limit on the free tier, upgrading from personal to fleet plan jumps to $100 per month with nothing in between
向いている人：Responsible owners of multiple vehicles who want a complete service history
A ten-year veteran for tracking fuel and service work, functional and free, but the iOS app lags well behind Android in features and has not been updated in over a year.
評価点：Simple fillup and service entry, cross-device sync, free core, large vehicle database, compare fuel economy with other users
不満点：iOS version has fewer stats and charts than Android, no updates in over a year, periodically logs you out, stations disappear from the database, cannot insert a missed fillup without a cascading recalculation
向いている人：Budget-conscious drivers who want to track fuel economy and service history without spending money
One of the best fuel and expense trackers on iOS: has been around since 2009, a responsive developer who answers email directly, no ads, no subscriptions. Downsides are data getting cut off past 3 years and iOS-only.
評価点：A living developer who replies fast, no ads or subscriptions, detailed expense and mileage analytics, proven across 10+ years of real use
不満点：Data silently truncates beyond 3 years, iPad version costs extra, cross-iPhone sync broke after an update, motorcycle support is incomplete
向いている人：Drivers who want an honest expense and MPG history without ads or monthly fees
