Report updated May 25, 2026
Wheel Size
For automotive enthusiasts, professional mechanics, and vehicle owners researching tire and rim compatibility for aftermarket upgrades.
Wheel Size is an established utilities app that is completely free. With a 4.8/5 rating from 60 reviews, it shows polarized user reception.
What is Wheel Size?
Wheel Size is a technical reference app for automotive wheel and tire fitment data, available on iOS.
Users hire the app to verify technical compatibility for aftermarket vehicle modifications, replacing manual research with a verified, daily-updated database.
Current Momentum
v1.3 · 3mo ago
Maintenance- Updated database daily for accuracy.
- Maintains stable 4.75 rating.
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Lookup tool for wheel and tire specifications covering 110 car makes and 3800 models across 12 global markets.
Local storage of recent vehicle searches and user-defined favorites for access without an active data connection.
Display of detailed vehicle data including bolt patterns, center bore, torque settings, and tire pressure.
Search functionality allowing users to find vehicles based on specific tire or wheel parameters.
How much does it cost?
- Free access to all database features
The app operates as a free utility, likely serving as a lead generation or traffic driver for the Wheel-Size.com web property.
Who Built It?
Alexander Zagvozdin
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does Alexander Zagvozdin make?
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Wheel Size?
Where is it available?
Localized markets (10)
How's The Utilities Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
This app competes for the same automotive DIY audience by providing diagnostic data that complements wheel fitment, capturing users during the vehicle maintenance lifecycle.
Differentiators
- Integrates repair information directly with fault codes, providing actionable solutions rather than just raw data
- Features a pop-up acronym explainer that simplifies complex automotive jargon for non-professional car owners
- Maintains a massive user base with over 2,000 ratings, creating a strong social proof barrier to entry
Head to head
The target should focus on cross-promotion with diagnostic tools or integrate basic vehicle health checks to prevent users from migrating to broader automotive utility suites.
Contenders(2)
ALLDATA competes by offering professional-grade repair and diagnostic data that overlaps with the technical needs of the target's power users.
Differentiators
- Provides official OEM repair data access, establishing a level of authority that aftermarket apps cannot match
- Integrates with Shop Manager Pro, locking in professional mechanics who require comprehensive business and technical workflows
This app targets a specific niche of vehicle owners seeking repair manuals and operational guides, competing for the same 'car maintenance' search intent.
Differentiators
- Focuses on deep, model-specific repair documentation for legacy vehicles rather than broad wheel fitment data
- Utilizes a simplified, manual-based UX that appeals to users performing hands-on mechanical work at home
Same space(4)
This app serves the heavy machinery sector, competing for users who need precise technical specifications and parts management for their equipment.
Differentiators
- Connects directly to JDLink for real-time equipment monitoring, moving beyond static data into live asset management
- Includes a dedicated parts finder feature that bridges the gap between technical specs and procurement
This app addresses the critical tire maintenance aspect of the automotive utility market, competing for users focused on tire performance and safety.
Differentiators
- Offers terrain-specific optimization calculations, providing value for off-road and specialized driving conditions
- Features distinct calculation modes for basic versus advanced users to accommodate varying levels of technical expertise
This is a direct functional competitor that provides tire and wheel comparison tools, targeting the exact same 'fitment' use case as the target app.
Differentiators
- Includes a speedometer error calculator to help users understand the real-world impact of changing tire sizes
- Maintains a broad tire brand database that allows for direct comparison between different manufacturer specifications
This app competes in the technical documentation and asset management space, targeting users who need field-ready calculators and warranty data.
Differentiators
- Bundles warranty management and connectivity reporting, offering a more comprehensive lifecycle view for technical assets
- Provides field calculators specifically designed for professional technicians working in HVAC or similar technical environments
New entrants(1)
This newcomer uses AI to disrupt the traditional manual lookup model, threatening apps that rely on static databases.
Differentiators
- Leverages on-device AI for real-time diagnostic chat, offering a conversational interface that replaces manual database searching
Compare Wheel Size against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Wheel Size
Strengths to defend, gaps to attack
Core Strengths
- Global fitment database covers 110 makes and 3800 models, creating a high barrier to entry for manual data collection.
- Daily update cadence ensures technical accuracy for aftermarket upgrades, sustaining user trust.
Critical Frictions
- Static database model lacks the conversational, actionable diagnostic advice provided by AI-first competitors.
- Limited monetization strategy relies on web traffic redirection rather than direct in-app revenue.
Growth Levers
- Integrate speedometer error calculators to match the feature set of direct competitors like Tire Size Fitment.
- Develop conversational AI chat for technical queries to neutralize the threat from Car Aide AI.
Market Threats
- AI-driven diagnostic apps threaten to replace manual lookup tools with conversational, real-time advice.
- Professional-grade OEM data providers like ALLDATA offer deeper integration with shop management workflows.
What are the next best moves?
Integrate speedometer error calculator because it is a key feature gap vs Tire Size Fitment → increase feature parity.
Competitor analysis identifies speedometer calculation as a primary differentiator for direct rivals.
Trade-off: Pause the UI refresh for the search results page — feature parity is a higher retention lever.
Audit search query logs to identify common failed searches because it reveals untapped vehicle segments → prioritize database expansion.
The app's value is tied to database coverage; identifying gaps directly improves user utility.
Trade-off: No major lever displaced — capacity available within existing maintenance budget.
A counter-intuitive read
The app's status as a free, ad-free utility is its primary defensive moat, as it prevents AI-driven competitors from easily undercutting it on price or user experience.
Feature Gaps vs Competitors
- Speedometer error calculator (available in Tire Size Fitment)
- Real-time diagnostic chat (available in Car Aide AI)
Key Takeaways
Wheel Size maintains a strong technical authority through its comprehensive database, but it faces an existential risk from AI-first diagnostic tools that offer actionable advice, so the PM should prioritize adding value-add calculators to defend against feature-parity erosion.
Where Is It Heading?
Stable
The automotive utility market is shifting toward conversational, AI-driven diagnostic tools that provide actionable solutions rather than raw data. Wheel Size remains advantaged by its deep, verified database, but it must evolve beyond static lookups to avoid losing power users to AI-native competitors.
Daily database updates ensure the app remains the most accurate reference tool, which sustains high user trust and retention.
The emergence of AI-first diagnostic tools threatens to shift user preference toward conversational interfaces, potentially rendering static database lookups obsolete.