Car maintenance
The market has split into two clusters. The first is gig drivers on Uber, Lyft, and DoorDash: they need to log every mile for the tax deduction, and a tracker failure costs real money. zeros out after an 8-hour shift and hands the courier zero miles, and drops trips during a long stop in traffic.
The second cluster is the personal car: fill-ups, oil, routine service. Here the worst pain is losing history when switching phones (4 to 6 years of data vanished in after the 3.0 update) and service reminders that quietly stop firing.
has held the bar since 2009 with no ads and no subscriptions, exactly where competitors break or double their prices.

Market overview
Leadership in mileage tracking comes down to one parameter: how reliable background recording is on long shifts. Whoever first solves uninterrupted tracking with no losses on shifts of 8 hours and more takes the gig segment: today neither , nor Everlance, nor has it.
- Size
- 588,007ratings across 36 apps · 8,147 reviews read
- Concentration
- 55%of all ratings held by the top three
- Downloads
- 8 M+installs across the top 11 on Google Play, led by Mileage Tracker & Log - MileIQ
- What people pay
- $100$20$30$200prices cited in real reviews
- Leaders
- Revenue estimate
- What the niche's top apps make a year. The number opens together with the ideas. Unlock
- Trust
- 26 of 100apps have an inflated or doubtful star, only 1 are genuinely good
- Discoverability
- 70 of 100a new app's chance to break in: the top three hold 55% of ratings, 17% of the shelf is gamed, only 3 apps are genuinely strongComputed from leader concentration, gamed share, count of strong apps and demand size. Rough, order of magnitude.
- Money
- Who pays in this niche, for what, and why most players lose money. It opens together with the ideas. Unlock
The field splits into three types. First, indie apps with a one-time purchase: (rating 82), no ads or subscriptions, a developer who is still around, but iOS only and with history that gets cut off after 3 years. Second, subscription mainstream apps with auto-tracking: , Everlance, Driversnote, Hurdlr. All of them can log trips automatically, but raised its price from 60 to 140 dollars a year with no new features and lost its loyal base, Hurdlr shreds one trip into dozens of fragments at every stoplight, and Everlance throws a banner over navigation while you drive. Third, OBD2 scanners (FIXD, Carly, ZUS): a hidden auto-renewing subscription at 99 to 145 dollars a year, random unauthorized charges, and patchy coverage for brands outside BMW.
Audience
"Car maintenance" is not one customer. Inside are different people with different jobs, and they pay very differently. First you choose who you build for.
Where the money is
Where users come from
Channels visible right in the reviews: people say themselves how they found the app and why they installed it. This is the niche's distribution.
Trying trackers until the best one7
The most common scenario: someone honestly tried nearly every tracker in the store and settled where the tracking was more accurate and daily entry simpler. Ads barely register here, the product wins. For a new app this means niche users can always be intercepted: they keep migrating until they find accuracy.
I have tried just about every mileage / maintenance tracker in the App Store and this one has been my favorite. It's simple enough to use consistently but full featured.
I tried a few other apps before but they missed some of my trips or started tracking too late. And they were more expensive. This one is just perfect super accurate.
Store search for the task: taxes, gig work, your own garage3
The install comes with a specific trigger: a delivery driver needs mileage for taxes, an owner of a couple of cars needs a service log. People literally write searched and found. The queries are concrete, so an exact hit of name and description on the task wins, including the gig driver segment.
I have been using this app for a week on my door dash mileage. This app has made it so simple. This is exactly what I've been looking for.
I'm not a fleet manager but I was looking for a solid app to manage my own vehicles. AUTOsist looked promising so I decided to try it.
Replacing an app that broke or got complicated2
Part of the inflow is refugees from the old logs: Gas Buddy cut features, the previous tracker wouldn't sync across devices. This user arrives with their data history in hand, so importing old records turns their move from a pain into an argument for you.
I have been using Gas Buddy for years and when my Gas Card stopped working and the editing features disappeared I searched for a gas log and found Road Trip.
I had another app that was very complicated and didn't sync between devices. Then, I searched for another and added all of the data from the previous one.
Youtube gadget reviews1
A single signal but with a mechanic: the app comes bundled with an OBD device the person saw in a YouTube video. For hardware-plus-app combos, reviewers remain a working entry channel.
Before receiving this product, I saw it on a YouTube video listed as free after paying the low shipping cost to have it sent to me.
Honest rating
The same hundred apps in two scoring systems. Switch and watch the storefront star diverge from what people actually write in reviews.
Road Trip MPG4.9 in store · genuine · 624 ratings82our scoreOne 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.
A living developer who replies fast, no ads or subscriptions, detailed expense and mileage analytics, proven across 10+ years of real use
Data silently truncates beyond 3 years, iPad version costs extra, cross-iPhone sync broke after an update, motorcycle support is incomplete
Drivers who want an honest expense and MPG history without ads or monthly fees
MileIQ: Mileage Tracker & Log4.8 in store · genuine · 105,718 ratings72our scoreMileIQ accurately tracks mileage for tax reporting and has worked reliably for years, but an aggressive price jump from $60 to $140 a year with no new features is pushing loyal users to competitors.
Automatic trip detection, easy personal vs. business split, clean export for accountants, stable performance over multiple years
Price doubled from $60 to $140 a year with no added value, occasionally misses trips, support only responds through an AI bot, no automatic toll tracking
Freelancers, real estate agents, and road-heavy professionals who need clean mileage logs for taxes and are okay with the price
Car Cave - Car Maintenance Log4.7 in store · genuine · 338 ratings71our scoreA minimalist car maintenance log. Easy to get started, and the developer responds quickly to bugs, but it lacks data export and receipt uploads.
Clean interface, fast developer response to issues, affordable premium version
No record export, no receipt uploads, no back button to the main screen, service intervals cannot be set independently from dates
Drivers who want a simple oil and maintenance log without extra features
AUTOsist Fleet Management App4.2 in store · genuine · 343 ratings68our scoreA maintenance log for multiple vehicles with receipt photo attachments. Strong on support and long-term record storage, weak on rigid pricing and login issues.
Stores years of service history with attached receipt photos, convenient for owners of multiple vehicles
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
Responsible owners of multiple vehicles who want a complete service history
Mileage Tracker by Everlance4.8 in store · doubtful · 50,295 ratings66our scoreAn automatic mileage tracker for self-employed workers and couriers with tax reporting. Runs in the background and saves time at tax time, but a persistent banner blocks GPS and there are transaction bugs.
Automatic trip tracking, tax export, bank card integration, saves real money on deductions
Banner covers navigation while driving, no undo button, duplicate trips, bank linking issues, account deletion is difficult
Couriers, freelancers, and gig workers who need automatic mileage tracking for taxes
Mileage Tracker by Driversnote4.8 in store · doubtful · 37,595 ratings62our scoreA solid automatic mileage tracker with years of stable operation, a clean interface, and reliable trip detection, but a 15-trip monthly free limit and $11-13 per month for full access turns many people away.
Starts automatically when you drive, stores years of history, clean tax reporting, responsive support
Hard 15-trip limit with no warning, high subscription price, sometimes fails to end a trip when stopping at a gas station, export occasionally crashes
Drivers with a small number of business trips per month or those willing to pay for reliable auto-tracking
ZUS - Save Car Expenses4.7 in store · inflated · 5,232 ratings62our scoreZUS is an OBD2 device with an ecosystem: mileage tracking, code diagnostics, tire pressure monitoring, HUD, and a trip rewards program. The feature set is wide and impressive when stable. Weak points are unreliable code reading on some vehicles and iOS compatibility breaking after major OS updates.
Wide feature set in one device: OBD2 codes, tire pressure via add-on sensor, HUD, mileage tracking, and small trip rewards
Misses real error codes on some vehicles (Chrysler cited), features temporarily break after iOS updates, rewards program is inconsistent
Car owners who want an all-in-one gadget for basic diagnostics and monitoring without expecting professional-grade accuracy
Fuel MPG Calculator4.6 in store · genuine · 352 ratings62our scoreA fuel consumption tracker with fillup and service history. The core is reliable, but a version 3.0 update wiped years of data for many users.
Free app with no ads, data stored in the phone's backup, developer personally helped users recover corrupted records
The 3.0 update broke measurement units and destroyed 4-6 years of data for many users
Drivers who keep a long-term fillup and fuel consumption log
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Nearby niches
Breakdowns next door: same audience, adjacent jobs.