Report updated May 13, 2026
SizeMyBike
For beginner cyclists looking to choose the right bike size at purchase and expert riders seeking to optimize their current bike geometry.
SizeMyBike is an established sports app that is a paid app. With a 2.5/5 rating from 10 reviews, it shows polarized user reception. Users particularly appreciate simple and instructive bike fitting process helps beginners find their ideal bicycle geometry, though inaccurate frame size and component recommendations lead to poor bike fit outcomes for riders remains a common concern.
What is SizeMyBike?
SizeMyBike is a mobile bike-fitting utility that calculates bicycle geometry based on six user body measurements.
Users hire the app to avoid the $150 cost of professional bike fitting sessions by using a self-service, morphology-based geometry calculator.
Current Momentum
v2.4 · 145mo ago
Zombie- Ships minor performance and stability improvements.
- Added new panel of tools in Xtra.
Active Nemesis
Bike Fast Fit Elite
By Double Dog Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
SportsRating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Calculates optimal geometry for road and mountain bikes using six specific body measurements.
Allows storage and management of bike fitting data for multiple riders.
Generates bike measurement reports in PDF format for email sharing or wireless printing.
How much does it cost?
- One-time purchase at $2.99
The app positions itself as a low-cost alternative to $150 professional fitting services.
Who Built It?
Providing specialized geometry analysis tools for cyclists to optimize bike fit and performance.
Portfolio
1
Apps
Explore the full La Pomme Chez Vous report
Portfolio breakdown, audience, momentum, and every app published by La Pomme Chez Vous.
What do users think recently?
Low confidence · 29 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate simple and instructive bike fitting process helps beginners find their ideal bicycle geometry, but report inaccurate frame size and component recommendations lead to poor bike fit outcomes for riders.
Limited review volume (29 reviews). Sentiment analysis will deepen as more data lands.
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 SizeMyBike?
Where is it available?
Localized markets (11)
How's The Sports Market?
How does it evolve in the Sports market?
SizeMyBike holds the #91 Paid position in the Sports category. The low review count of 29 suggests a stagnant user base that is not growing despite the low $2.99 entry price.
Rank progression
88 active rankings tracked — 30-day window
Which niche is SizeMyBike in?
Explore the full Cycling Guides niche
Every app in this space — 3 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
Both apps target the serious cycling enthusiast demographic, competing for the user's attention during the pre-race preparation and equipment optimization phase.
Same space(4)
This app overlaps with SizeMyBike by providing technical mechanical data essential for optimizing a cyclist's equipment setup.
This app targets the same cycling enthusiast audience, though it shifts the focus from physical fitting to strategic game-based management.
WhiizU captures the competitive cycling audience by providing real-time virtual competition and workout tracking.
ROUVY competes for the same cycling-focused screen time by offering immersive virtual training environments that require a well-fitted bike.
New entrants(2)
This app is a direct threat as it modernizes the bike fitting process using AI, rendering manual measurement apps obsolete.
This newcomer targets the technical equipment optimization niche, directly competing for the user's time spent on bike maintenance.
Compare SizeMyBike 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 SizeMyBike
Strengths to defend, gaps to attack
Core Strengths
- Low-cost alternative to $150 professional fitting services
- Niche-focused morphology algorithm
Critical Frictions
- High crash frequency post-update
- Persistent data loss during migration
- Lack of modern hardware support
Growth Levers
- Integration with wearable health data
- Expansion into specialized bike categories
Market Threats
- Video-analytical competitors rendering static measurements obsolete
- OS-level updates breaking legacy code
What are the next best moves?
Audit and fix PDF export crashes because they are the top-reported stability complaint → improve rating baseline
PDF export crashes are a top complaint theme in user reviews.
Trade-off: Pause the Xtra tool panel expansion — stability is a higher priority than feature depth.
Deprecate legacy iTunes sync because it is the primary source of data-loss complaints → reduce support overhead
Data loss during migration is a high-frequency complaint theme.
Trade-off: No major lever displaced — this is a necessary cleanup task.
A counter-intuitive read
The app's primary risk is not its lack of features, but its reliance on static measurements in a market shifting toward video-based biomechanical analysis.
Feature Gaps vs Competitors
- Video-based motion analysis (available in Bike Fast Fit Elite)
Key Takeaways
SizeMyBike provides a low-cost entry point for bike fitting, but its technical instability and lack of modern hardware support threaten its viability. The PM should prioritize stability fixes over new features to prevent further rating decline.
Where Is It Heading?
Declining
The bike fitting market is consolidating around tools that offer objective, video-based analysis, leaving static-measurement apps like SizeMyBike exposed. Without a significant technical refresh to support modern hardware, the app will likely continue to lose relevance to more capable, data-driven competitors.
Frequent application crashes and data loss issues following the latest update erode user trust and drive negative sentiment.
Lack of compatibility with modern mobile hardware prevents new users from launching the app, effectively stalling acquisition.