Comparison

TireLab vs Tire Size Calculator Plus

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TireLab

This app helps you compare and visualize different tire and wheel configurations for your vehicle. It calculates key dimensions, checks for fitment issues, and provides technical references. Supports both Imperial and Metric units.

Highlights
  • Compare tire and wheel dimensions
  • Visualize configurations with cutaway views
  • Fitment calculator for vehicle compatibility
  • Technical reference and glossary
  • Imperial and Metric unit support
  • Intuitive interface
Features
Read full description

HOW TO USE TIRELAB: 1) Set wheel sizes 2) Compare and visualize differences Changing tires or rims on your vehicle? This is the app for you! TireLab is an advanced, yet VERY easy to use, tire and wheel calculator that allows the manipulation of the multiple dimensions of several tire and wheel combinations. It allows professionals, enthusiasts, and weekend mechanics the ability to examine, compare, and visualize multiple tire and wheel configurations in real time. Features: 1) Calculates, compares, and displays all key tire and wheel data points TIRE - Compatible rim sizes - Diameter - Difference - Distance per revolution (circumference) - Odometer error (difference in odometer) - Radius - Revolutions per mile - Revolutions per kilometer - Section (sidewall) height - Section width (tire width) - Size - Speedometer error (difference in speed) WHEEL - Backspace - Difference - Offset - Lip inset - Size 2) Tire/wheel configuration fitment calculator Provides the user the ability to identify vehicle fitment related issues that may potentially result from different tire and wheel configurations. - Axel/ride height - Brake component clearance - Fender (outside) clearance - Suspension (inside) clearance - Wheelwell clearance 3) Intuitive and easy to navigate interface TireLab provides for the ability to manipulate the key dimensions of both tires and wheels. If you desire to only utilize the tire modeling functionality you need only to adjust the tire measurements. All of the controls will automatically adjust to safe and compatible configuration thresholds. 4) Detailed scaled visual representations View, and compare, detailed representations of tire and wheel configurations. A unique "cutaway view" of the wheel provides the user with the ability to visualize and compare key tire and wheel measurements for multiple configurations. In addition, a unique "tire view" permits the user the ability to visualize and compare scale representations of different tire configurations. 5) Tire compatibility display Provides the user a list of compatible tire sizes and accurately indicates the differences in both tire width and tire diameter. 6) Tire and wheel technical reference Provides the user the ability to view codes, definitions, and technical specifications. -Tire construction -Load Index chart -Load Ranges -Speed Ratings -Tire types -Temperature Grades -Traction Grades -Treadwear Grades 7) Tire and wheel technical glossary Includes an extensive dictionary of tire and wheel technical terminology. 8) Imperial and Metric Full Imperial (standard) and Metric support. All information is displayed in both Imperial and Metric units.

About

Tire Size Calculator Plus

Easily compare the specifications of two tires before purchasing. Calculate differences in diameter, width, sidewall, circumference, and revolutions per mile. Includes visual illustrations and speedometer adjustments for different tire sizes.

Highlights
  • Compare two tire sizes
  • Calculate diameter, width, sidewall, circumference
  • Revolutions per mile calculation
  • Metric or imperial output
  • Speedometer reading adjustment
  • Visual tire size illustration
  • Tire sidewall code explanation
Features
Read full description

Tire size comparison the easy way before you buy. Use our tire size calculator to compare diameter, width, sidewall, circumference and revolutions per mile for 2 tires. Tire size calculator takes two tire sizes and directly calculates the differences between the tires diameter, width, sidewall, circumference and revolutions per mile. Metric or imperial output available. It also shows examples of your speedometer reading with the first tire, and the actual speed you're traveling if you were to install the second tire. An illustration between 2 tire size and shape are show for better understanding on how it looks like. A very useful tool when searching for tires that are a different size than stock. Enjoy this app for all your tire size comparison needs. Check Your Tire's Sidewall: • With a little explanation it's easy to understand what all of the letters and numbers mean on your tire's sidewall. The numbers are indicators of the size, type, and performance of the tire. • Tire Type The letter "P" at the beginning of the "Tire Size" tells us the tire is a P-Metric tire, referring to tires made to certain standards within the United States, intended for Passenger vehicles. • If a tire size has no letters at the beginning, this indicates a Euro metric tire. P-Metric and Euro-Metric tires may have different load capacities. • The letters "LT," either at the beginning or at the end of the tire size indicate the tire was designed for light trucks. Vehicle manufacturers equip some light trucks with "LT" type tires. These tires generally require higher inflation pressures than passenger tires. • Consult your owner's manual or tire placard for the recommended tire size and inflation pressure for your vehicle. Tire Width is the width of the tire measured in millimeters from sidewall to sidewall. The first three-digit number in the tire size refers to the tire width. For instance, in a size P220/40 R17 tire, the width is 220 millimeters. Aspect Ratio is the ratio of the height of the tire's cross-section to its width. The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P220/40 R17 tire, the 40 means that the height is equal to 40% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be. Construction. The letter "R" in a tire size stands for Radial, which means the layers run radially across the tire. Wheel Diameter is the size of the wheel measured from one end to the other. It tells us the size of the wheel that the tire is intended to fit. A size P220/40 R17 tire is made for a wheel with a 17 in diameter. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

TireLab4 screens
Tire Size Calculator Plus4 screens

Verdict

The call

The clearest difference is rating: TireLab at 5.0 against Tire Size Calculator Plus's 3.6. TireLab also leads on update cadence (every 7 months vs every 42 months) and price ($1.99 vs $2.99). Tire Size Calculator Plus's advantage is iOS requirement (13 vs 18.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

TireLab costs $1.99 and Tire Size Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TireLab holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

UpkeepUpdate frequency

TireLab ships an update every 7 months, Tire Size Calculator Plus every 42 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
TireLab versus Tire Size Calculator Plus: the parameters behind the verdict, then further details
ParameterTireLabTire Size Calculator Plus
Price$1.99 — better$2.99
Rating5.0 (8 ratings) — better3.6 (5 ratings)
Positive reviews68.0% of reviews—
Number of ratings8 — better5
Update frequencyEvery 7 months — betterEvery 42 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013 — better
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperMichael WeberHeng Jia Liang

Customer experience

TireLab

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews25 reviews
Positive68.0%
Neutral4.0%
Negative28.0%

Tire Size Calculator Plus

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%

In-app purchases

None

TireLab

No in-app purchases

None

Tire Size Calculator Plus

No in-app purchases

Questions

Is TireLab free?
TireLab costs $1.99, with no in-app purchases.
Is Tire Size Calculator Plus free?
Tire Size Calculator Plus costs $2.99, with no in-app purchases.
Which has better reviews, TireLab or Tire Size Calculator Plus?
TireLab is rated higher. TireLab averages 5.0 out of 5 from 8 ratings, while Tire Size Calculator Plus averages 3.6 from 5 ratings.
Do TireLab or Tire Size Calculator Plus have ads?
Neither TireLab nor Tire Size Calculator Plus shows ads.
Which is updated more often, TireLab or Tire Size Calculator Plus?
TireLab ships an update every 7 months, and Tire Size Calculator Plus every 42 months. Most recently, TireLab was updated on November 6, 2026 and Tire Size Calculator Plus on November 3, 2026.

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