Search the App Store for a way to check a mechanic's quote and you get a wall of "AI mechanic" apps. Most of them solve a different problem than the one you have. They diagnose what might be wrong with your car. You already know what the shop says is wrong. What you do not know is whether the price is fair.
Below is what six tools actually do, read off each product's own App Store listing or website on August 5, 2026. Features and prices change; treat every row as of that date and check the listing before you pay for anything.
The comparison
| Tool | What it actually does | Checks a quote you already have? | Publishes its sample size? | Price as listed |
|---|---|---|---|---|
| QuoteScore web, no app |
You upload the quote or estimate a shop gave you. It scores the quote 0-100 and rebuilds it line by line against benchmark ranges. | Yes. That is the only thing it does. | Yes. Live count on our public stats endpoint, and the category benchmarks are downloadable as a CSV under CC BY 4.0. | Free, no signup. Optional $9 report. |
| ProveItAuto iOS and Android per their site |
Their homepage describes uploading your repair quote for "an instant second opinion" using AI diagnostics and US labor market data, comparing it against "thousands of real repair transactions nationwide." | Yes, per their homepage. | Not published on their site. The homepage states "thousands of real repair transactions," a 99% accuracy figure and 10K+ users, without a sample size or methodology page we could find. | Not published on their homepage. |
| MECH AI iOS, Android and web |
Primarily an AI mechanic: describe symptoms or enter an OBD2 code for a diagnosis. Their site also shows a dealer quote compared against its own estimate. | Partly. Diagnosis is the headline feature; quote comparison is shown as an example. | Not published on their site. | Free tier, ad-supported with a daily limit. DIY $7.99/mo, Mechanic $19.99/mo, Shop $59.99/mo. |
| AI Repair-Fix, Analyze Estimate iOS, by Monchak Taras |
Photograph the damage and get repair steps, a diagnosis and its own cost estimate, plus nearby repair stores. | No. It generates an estimate rather than checking one. | Not stated on the listing. | Free with a $7.99 premium purchase. |
| Estimate Car Repair Cost AI iOS, by Volodymyr Bilous |
Upload photos of body damage, pick your car, and get an estimated repair cost and time per damaged part. Supports 120+ countries. | No. Photo-based estimation only. | Not stated on the listing. | Free with purchases from $5.99/week to $59.99 lifetime. |
| ARI iOS, Android, Mac, Windows, web |
Shop management software for repair businesses: invoicing, estimates, inspections, inventory, labor guides, time tracking. | No, and it is not trying to. It is built for the shop, not the customer. | Not applicable. | Not published on the page we read. |
All rows read from each product's own App Store listing or website on August 5, 2026. Where we say something is "not published," we mean we could not find it on their public pages that day, not that it does not exist.
Diagnosis and pricing are two different products
This is the distinction the App Store search results blur, and it is worth being blunt about. An AI mechanic app answers what is wrong with my car. It looks at a photo, a symptom, or an OBD2 code and tells you the alternator is probably failing. Useful. But once a shop has handed you a quote for $890 to replace that alternator, the diagnosis is settled and the open question is the price.
Three of the six tools above take the quote itself as the input. Three do not. If the reason you are searching is that a number on a piece of paper made you flinch, the photo-estimate apps will not help, however good their AI is.
What to look for in a quote checker
- Line items, not a verdict. A single "this seems high" is not actionable. You want parts separated from labor, each compared against a range, so you know which line to push back on.
- A disclosed sample size. "Thousands of real transactions" and "99% accurate" are marketing until someone tells you how many quotes, in which categories, and lets you check. Ask any tool, including this one, where its numbers come from.
- Ranges, not point estimates. Real repair pricing varies by region, vehicle and shop. A tool that gives you one exact number is hiding the variance rather than measuring it.
- Something to take back to the shop. The output is only worth anything if it survives a conversation with the person who wrote the quote.
Where QuoteScore fits, and where it does not
QuoteScore does one job: you give it a quote you already received, and it scores that quote against real quotes other people submitted. It will not tell you what is wrong with your car, it will not read an OBD2 code, and there is no iPhone app to download. It runs in mobile Safari and Chrome; you photograph the quote from your camera roll the same way you would in any app, and Add to Home Screen makes it a one-tap icon if you want one.
The part we will happily be measured on is the data. The table below is not an illustration, it is pulled live from the auto repair quotes in our database each time this page loads, including how many there are. Every other tool on this page asks you to take its pricing on faith. The full category benchmarks are also downloadable as a CSV under CC BY 4.0, so you can check our arithmetic instead of trusting our adjectives.
The honest caveats
We have no native app, and for some people that alone settles it. ProveItAuto and MECH AI do, and if you want a phone app with notifications and an account, they are the ones on this list that ship one. MECH AI also does real diagnostic work that we do not attempt at all. And our data is strongest where our users are: auto repair is our largest category, but a rare model or an unusual job will have thinner backing than a brake job, which is why we show you the sample size rather than hiding it.