The tread gauge lives in a drawer behind the counter. Last week it was in somebody’s pocket, and before that it sat on the alignment rack. When a customer asks how much tread is left, the answer depends on who finds it, where they press it, and writing the measurement down manually. A tire tread scanner app takes the gauge out of the job and turns. It puts the measurement on a phone your technician already carries.
What is a tire tread scanner app?
A tire tread scanner app measures tread depth using the camera on a standard phone or tablet, with no gauge and no extra hardware. The technician opens the app and points the camera at the tread, and on-screen guidance holds the framing steady. Computer vision then rebuilds the tread surface in 3D from the images it captures. The depth values land in the digital inspection record, with a timestamp and the scan image attached.
Search results for tire tread scanners sort into two buckets: free consumer apps, and workshop hardware. Inspection software built for shops sits in a third bucket and behaves like neither. It publishes a precision figure and a device list the way hardware does, and it rolls out the way software does, one seat at a time.
Anyline released the first smartphone tire tread scanner in November 2022, and inspections run through the software passed 100 million worldwide during 2025. The company has built tire and vehicle identification for more than ten years, and works with Michelin, Discount Tire, Continental and NAPA.
What a tread scan captures in one pass
One scan returns a tread depth value for the visible tread as a whole, plus separate values for the left, center, and right of the tread face. That last part is the one worth dwelling on. A gauge gives you a number for the spot the probe went into. Three values across the width give you a shape. Shape is what separates a tire wearing out from a vehicle wearing a tire out.
A shoulder running ahead of the center points at something other than mileage. The app flags the uneven wear. What it means, and what to do about it, is the technician’s call.
Anyline’s tire inspection has precision of 1/32” or down to 0.5 mm and samples around 100,000 points across the tire. The count of places matters more than the finer number.
The same pass fills in the rest of the tire record. Sidewall capture reads the DOT code and tire size, so age and identity attach to the depth reading without anyone typing. VIN and license plate identification put the reading against the right car and wheel position. Tire and vehicle identification is the one place where speed is a fair claim, because the value is already printed on the tire.
What changes when the digital tire inspection is software
Cost structure changes first. Separate equipment is a capital purchase, per unit or per lane, so a second site means a second purchase. Software adds seats. That is the difference between a rollout you can schedule and one you have to budget for.
Two more things follow from carrying no hardware. Inspection travels to the vehicle, which covers the yard, the customer driveway, and the site your fixed equipment will never reach. And the result is digital from the moment of capture, so no handwritten number waits to be typed in later.
Then there is the part that shows up in month three. On-screen guidance keeps the capture consistent across technicians and across sites, so the number stops changing with the person who takes it. A result tied to a vehicle, a wheel position, and a date is traceable afterwards, unlike a figure on a clipboard. That is what turns a measuring device into inspection intelligence.
Choosing between software on a phone and separate tread equipment. The last row is a category mobile inspection does not win.
| Inspection software on a phone | Separate tread equipment | |
|---|---|---|
| What you buy | A seat, by subscription | A unit or a lane, by capital purchase |
| Adding a location | Add seats | Buy and install again |
| Ongoing upkeep | App updates | Charging, calibration, replacement |
| Works away from the shop | Yes | Handheld yes; bench and drive-over no |
| Reads the whole tread face | Yes | Varies by device |
| Record and customer report | Part of the scan | Often separate, sometimes absent |
| Measures with nobody present | No | Drive-over lane, yes |
The last row is the honest one. If you need every vehicle measured through one entry point with nobody present, a drive-over lane does that, and a phone does not. Our guide to tire tread scanning methods compares the four automated methods side by side.
TireBuddy App or TireBuddy ToolKit
The app is the finished product, ready to use. The ToolKit is the same inspection engine, dropped inside an app your team already opens every day.
| TireBuddy App | TireBuddy ToolKit (SDK) | |
|---|---|---|
| Delivery | Out-of-the-box mobile app for Android and iOS | Enterprise integration into your existing app and workflow |
| Built for | Garages, dealerships, and service centers with 10+ locations | Enterprise teams embedding inspection in their own product |
| Modules | Complete tire inspection including VIN, odometer, license plate, and tire sidewall | Five modules, configured the way you need them |
| Customization | Limited in-app options; customizable look and feel | In-app configuration through the SDK; fully customizable |
| Inspection report | Included | Build your own |
| Support | Standard or premium SLA | Standard or premium enterprise SLA with a dedicated account manager |
Start with where your inspections live today. Teams working from a clipboard or a browser tab move faster with the app, because there is nothing to build and the customer report comes with it. Teams whose inspections already sit inside a dealer management system, a service app, or a fleet platform get more from the ToolKit. The scan appears on the screen technicians already use, and the report stays yours to design.
What it takes to run it
The supported device list is published. For iOS, Anyline recommends the iPhone SE (3rd Gen), iPhone 11, and above. For Android: the Samsung Galaxy A53, Galaxy S10, Galaxy S21, Galaxy S23, and Google Pixel 5 and above. For tablets: the iPad Pro (3rd generation or better), iPad Mini (6th generation or better), or Samsung Galaxy Tab S8 or better.
Scope is passenger vehicles and vans. Anyline holds ISO/IEC 27001:2013 certification and is GDPR compliant for the personal data it processes, and a tire sidewall carries no personal data to begin with. The app runs on Android and iOS, with step-by-step tutorials in English, German, French, and Spanish. A seven-day trial includes training and a walkthrough with the team.
What service teams see after they switch
Approval rates move first. The reason is easy to see if you have watched the conversation happen. A tire recommendation backed by an image, a measurement, and a date reads as evidence. Said out loud with no record, it reads as an upsell.
Coombes Johnston BMW in New Zealand runs eight technicians through roughly 25 vehicles a day. The dealership put Anyline’s AI-powered tire identification inside its existing inspection workflow. Report completion reached 95%, and around 90% of tire opportunities were surfaced while the vehicle was still on site. Each report saved about five minutes of technician time, which came to two extra hours of billable labor across the day.
Driving Workshop Efficiency at CJ BMW with Anyline Tire Inspection
See how AI digital tire inspections helped streamline workflows, standardize data, and give customers clear, reliable insight into their tire health.
The baseline it replaced is worth saying plainly. Before Discount Tire digitized its inspections, technicians wrote DOT codes on paper and measured 12 separate spots by hand on a single tire.
There is a safety half to this too. During National Tire Safety Week 2026, Anyline measured US tires in the field and found one in seven was unsafe. NHTSA’s crash research points the same way from the other side. Among tires worn to 2/32 in or less, about 26% sat on vehicles that had a tire problem before the crash. For tires at 3/32 to 4/32 in, the figure was 8%. Catching a tire at 4/32 in is the safer conversation, and the earlier one for the shop.
Tire Tread Depth Measurement on Mobile Phones
Inspect tire tread depth and wear with just a mobile phone. Integrate end-to-end digital tire checks into your existing inspection workflow with the TireBuddy app or ToolKit (SDK).
Frequently asked questions
Is there an app to check tire tread?
Yes. Professional inspection apps measure tread depth with a phone camera in place of a gauge. Anyline’s TireBuddy runs on standard iPhones and Android phones. It returns a depth value for the whole visible tread, plus separate left, center, and right readings. The result writes itself into the inspection record, with the scan image attached. Free consumer apps also exist, though most estimate wear from a single photo and publish no precision figure or supported device list.
Is there a tool to measure tire tread depth?
There are four. A mechanical or digital gauge reads one point at a time. A handheld or laser device reads a point or a line. A drive-over plate measures every tire on a vehicle that crosses it. A phone running inspection software measures across the tread face and records the result automatically. Coins are a fifth option, and they give you a pass or fail verdict instead of a number you can log.
Is there a free tire tread scanner app?
Free consumer apps exist and will give you a rough read on your own car. They are built for a driver checking one vehicle. A service bay needs something else: the same tire returning the same number across technicians and sites, and a reading that becomes a record. TireBuddy is paid software with a seven-day trial that includes training and a walkthrough, so a team can test it on real tires first.
How accurate is a phone tire tread scanner?
Anyline publishes precision down to 0.5 mm, against the 1/32 in steps, or 0.79 mm, that a mechanical gauge resolves to. Coverage is the larger difference. A gauge measures the points a technician chooses, usually three or four per tire, while a scan samples around 100,000 points across the tread face. Ask any tread vendor for accuracy under stated conditions, because a digital gauge quoting 0.01 mm is describing its screen.
Does the Anyline tire tread scanner work on iPhone and Android?
Both. On iOS, Anyline recommends the iPhone SE (3rd Gen), iPhone 11 and above. On Android, the Samsung Galaxy A53, Galaxy S10, Galaxy S21, Galaxy S23, and Google Pixel 5 and above. Supported tablets are the iPad Pro (3rd generation or better), iPad Mini (6th generation or better), and Samsung Galaxy Tab S8 or better. Devices outside the list are worth asking about, since the list is a recommendation.
How can I check the tread on my tires?
For a quick verdict at home, put a US penny upside down into a main groove. Seeing the top of Lincoln’s head means the tread is at or below 2/32 in and the tire needs replacing. A quarter gives you earlier warning at 4/32 in. For a number you can record and act on, you need a gauge or a scan, and our guide to checking tire tread depth compares all five methods.
